Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level low (Shaded “U” shape with blue arrows) is located off the British Columbia coast. It will continue to rotate marine air toward us which will keep the temperatures fairly steady. The low will approach the Pacific Northwest and send disturbances our way by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 69 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT HAS BEEN ISSUED UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MONROE, SHERMAN, UMATILLA, UNION, WILLOWA, WASCO, WHEELER, BENTON AND COLUMBIA COUNTIES IN OREGON.
• A HEALTH ADVISORY HAS BEEN LIFTED FOR SEAL ROCK STATE PARK BEACH. TESTING SHOWS FECAL BACTERIA LEVELS HAVE SUBSIDED.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy tonight through Thursday evening, mostly cloudy late Thursday night,
• Mostly cloudy and a bit cooler with slight (20%) chance of rain Friday (under 0.10 in. of rain possible), rain Friday night (0.50 in. of rain possible) and Saturday AM, a good (50%) chance of showers and a bit cooler in the afternoon, a slight (20%) chance of evening rain, then a good (50%) chance of rain late Saturday night.
• lows 52-59 cooling to 56 Saturday night highs 85-73.
• Cloudy with a good (50%) chance of AM rain, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Sunday afternoon, mostly cloudy with a good (50%) chance of showers in the evening, a slight (20%) chance of showers Sunday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Monday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a (40%) chance of showers late Monday night and Tuesday, a (30%) chance of Tuesday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of showers Wednesday.
• highs 73-75 cooling to 72 Wednesday lows 53-55. (seasonal averages high 81 low 50)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear this evening, mostly cloudy late tonight and Thursday AM, partly cloudy with areas of smoke Thursday afternoon, mostly cloudy with patchy smoke at night,
• Cloudy and a bit cooler with a (30%) chance of rain Friday (under 0.10 in. of rain possible), rain likely (70%) in the evening, rain late Friday night (0.45 in. of rain possible),
• Cloudy with rain Saturday AM, partly cloudy with a (40%) chance of showers in the afternoon and evening, then mostly cloudy with rain likely (70%) late Saturday night.
• lows 57-59 highs 88-82.
• Mostly cloudy with AM rain likely (70%), a good (50%) chance of showers Sunday afternoon and at night,
• Mostly cloudy with a slight (20%) chance of showers Monday AM, partly cloudy in the afternoon, then mostly cloudy with a (30%) chance of showers Monday night through Wednesday.
• highs 82-78 lows 57-52. (seasonal averages high 83 low 54)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly clear this evening, mostly cloudy with  patchy fog late tonight and Thursday AM, just mostly cloudy Thursday afternoon, partly cloudy in the evening, cloudy late Thursday night,
• Cloudy with a good (50%) chance of rain Friday (under 0.10 in. of rain possible), rain at night (0.75 in. of rain possible)and Saturday AM, partly cloudy with a good (50%) chance of showers in the afternoon and evening, then mostly cloudy with rain likely (60%) late Saturday night.
• lows 54-56 highs near 66.
• Mostly cloudy with showers likely (70%) Sunday and Sunday night,
• Partly cloudy with a slight (20%) chance of showers Monday AM, mostly cloudy and a bit warmer with a slight (20%) chance of showers in the afternoon, then mostly cloudy with a (30%) chance of showers Sunday night through Wednesday.
• highs near 64-70 cooling to 66 Wednesday lows near 54. (seasonal averages high 66 low 52).

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just partly cloudy late tonight,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late Thursday night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain Friday afternoon, cloudy with a good (50%) chance of evening rain, rain likely (70%) at night,
• Mostly cloudy Saturday with AM rain, a mix of clouds and sun with a good (50%) chance of showers and cooler in the afternoon, a slight (20%) chance of evening rain, then a good (50%) chance of rain late Saturday night.
• snow level above 8,000 ft. tonight through Saturday night.
• lows 47-50 cooling to 44 Saturday night highs 75-58.
• Partly cloudy with a good (50%) chance of showers Sunday AM, mostly cloudy with a good (50%) chance of showers in the afternoon, partly cloudy with a good (50%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Sunday night,
• A slight (20%) chance of AM showers, a mix of clouds and sun Monday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Monday night,
• A mix of clouds and sun Tuesday with a slight (20%) chance of AM showers, a (30%) chance of showers in the afternoon, then mostly cloudy with a (30%) chance of showers Tuesday night and Wednesday.
• snow level above 8,000 ft. Sunday through Wednesday.
• highs 62-58 warming to 60 Tuesday and Wednesday lows near 42.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level low (Shaded “U” shape with blue arrows) is located off the British Columbia coast. It will continue to rotate marine air toward us which will keep the temperatures fairly steady. The low will approach the Pacific Northwest and send disturbances our way by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 45 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 66 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT HAS BEEN ISSUED UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MONROE, SHERMAN, UMATILLA, UNION, WILLOWA, WASCO, WHEELER, BENTON AND COLUMBIA COUNTIES IN OREGON.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny and pleasant today, partly cloudy tonight through Thursday night,
• Mostly cloudy and a bit cooler with slight (20%) chance of rain Friday, then rain Friday night.
• highs 85-79 lows 52-58.
• Mostly cloudy with AM rain, a bit cooler with a good (50%) chance of showers Saturday afternoon and in the evening, a good (50%) chance of rain late at night and Sunday AM, a good (50%) chance of showers and a bit warmer in the afternoon, a (40%) chance of showers Sunday night,
• Mostly cloudy with a (30%) chance of AM showers, partly cloudy with a slight (20%) chance of showers Monday afternoon and evening, then mostly cloudy with a (30%) chance of showers late Monday night and Tuesday.
• highs 73-75 lows 57-53. (seasonal averages high 82 low 50)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny today, mostly clear this evening, partly cloudy late tonight,
• Mostly cloudy in the AM, partly cloudy with areas of smoke Thursday afternoon evening, mostly cloudy with patchy smoke at night,
• Cloudy and a bit cooler with a (30%) chance of rain Friday afternoon and evening, rain likely (60%) in the evening, rain with a slight (20%) chance of thunderstorms late Friday night.
• highs 88-86 lows 57-59.
• Mostly cloudy with rain Saturday AM, showers likely (60%) in the afternoon and evening, a good (50%) chance of rain late Saturday night,
• A (30%) chance of showers Sunday and at night,
• Mostly cloudy with a slight (20%) chance of showers Monday AM, partly cloudy with a slight (20%) chance of showers in the afternoon and at night,
• Partly cloudy with a (30%) chance of showers Tuesday AM, then mostly cloudy with a (30%) chance of showers Tuesday afternoon.
• highs 82-85 cooling to 83 Monday and Tuesday lows 58-55. (seasonal averages high 83 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• AM coastal clouds and fog and sunny this afternoon while sunny inland this afternoon, mostly clear this evening, mostly cloudy with  patchy fog late tonight,
• Mostly cloudy with patchy AM fog, partly cloudy Thursday afternoon, mostly cloudy with a slight (20%) chance of coastal showers Thursday night,
• Cloudy with a good (50%) chance of rain Friday, then rain at night.
• highs 65-67 lows 54-56.
• Mostly cloudy with rain Saturday AM, showers in the afternoon, mostly cloudy with rain likely (60%) Saturday night and Sunday, then mostly cloudy with a (40%) chance of showers Sunday night through Tuesday.
• highs near 67-63 lows 56-54. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly sunny with a slight (20%) chance of showers and thunderstorms this afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just partly cloudy late tonight,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late Thursday night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Friday afternoon, cloudy with a good (50%) chance of evening rain, rain likely (70%) at night.
• snow level above 8,000 ft. tonight through Friday night.
• highs 77-67 lows 48-45.
• Mostly cloudy, breezy and cooler Saturday with AM rain likely (70%), a mix of clouds and sun with a good (50%) chance of showers in the afternoon and evening, a good (50%) chance of rain late Saturday night and Sunday AM, a good (50%) chance of showers in the afternoon, mostly cloudy with a (30%) chance of showers Sunday night,
• A mix of clouds and sun with a (30%) chance of AM showers, a bit warmer with a slight (20%) chance of showers Monday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Monday night and Tuesday AM, then a (30%) chance of showers Tuesday afternoon.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 64-66 cooling to 59 Monday warming to 63 Tuesday lows 45-43.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level low (Shaded “U” shape with blue arrows) is located off the British Columbia coast. It will continue to rotate marine air toward us which will keep the temperatures fairly steady. The low will approach the Pacific Northwest and send disturbances our way by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 38 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 62 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 43 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT HAS BEEN ISSUED UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MONROE, SHERMAN, UMATILLA, UNION, WILLOWA, WASCO, WHEELER, BENTON AND COLUMBIA COUNTIES IN OREGON.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly clear tonight,
• Mostly sunny and a bit warmer Wednesday, partly cloudy at night through Thursday night,
• Mostly cloudy and a bit cooler with slight (20%) chance of rain Friday afternoon, then rain likely (60%) Friday night.
• lows 52-58 highs 88-79.
• Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of showers Saturday afternoon and at night,
• Mostly cloudy with a good (50%) chance of rain Sunday AM, a good (50%) chance of showers and a bit warmer in the afternoon, a (40%) chance of showers Sunday night,
• Mostly cloudy with a (30%) chance of AM showers, partly cloudy with a slight (20%) chance of showers Monday afternoon and evening, then mostly cloudy with a slight (20%) chance of showers late Monday night and Tuesday.
• highs 73-75 lows 57-53. (seasonal averages high 82 low 50)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Sunny Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
• Mostly cloudy in the AM, partly cloudy with areas of smoke Thursday afternoon evening, mostly cloudy at night,
• Cloudy and a bit cooler with a (30%) chance of rain Friday afternoon and evening, rain likely (60%) late Friday night.
• lows 57-59 highs 88-86.
• Mostly cloudy with rain likely (70%) Saturday AM, showers likely (60%) in the afternoon and evening, a good (50%) chance of rain late Saturday night,
• A (30%) chance of showers Sunday and at night,
• Mostly cloudy with a slight (20%) chance of showers Monday AM, partly cloudy with a slight (20%) chance of showers in the afternoon and Tuesday AM, then mostly cloudy with a slight (20%) chance of showers Tuesday afternoon.
• highs 82-85 cooling to 83 Monday and Tuesday lows 58-55. (seasonal averages high 83 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly clear with patchy coastal fog late tonight,
• AM coastal clouds and fog and sunny Wednesday afternoon while sunny inland in the afternoon, mostly clear in the evening, mostly cloudy with  patchy fog late Wednesday night,
• Mostly cloudy with patchy AM fog, partly cloudy Thursday afternoon, mostly cloudy with a slight (20%) chance of coastal rain Thursday night,
• Cloudy with a (40%) chance of rain Friday, then rain likely (70%) at night.
• lows 54-56 highs 65-67.
• Mostly cloudy with rain likely (70%) Saturday AM, a good (50%) chance of showers in the afternoon, mostly cloudy with rain likely (60%) Saturday night and Sunday, then mostly cloudy with a (40%) chance of showers Sunday night through Tuesday.
• highs near 67-63 lows 56-54. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just partly cloudy late tonight,
• Mostly sunny with a slight (20%) chance of showers and thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late at night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late Thursday night,
• Mostly cloudy and a bit cooler with a (40%) chance of showers Friday afternoon and at night.
• snow level above 8,000 ft. tonight through Friday night.
• lows 48-45 highs 77-67.
• Mostly cloudy, breezy and cooler Saturday with AM rain likely (70%), a mix of clouds and sun with a good (50%) chance of showers in the afternoon and evening, a good (50%) chance of rain late Saturday night and Sunday AM, a good (50%) chance of showers in the afternoon, mostly cloudy with a (30%) chance of showers Sunday night,
• A mix of clouds and sun with a (30%) chance of AM showers, a bit warmer with a slight (20%) chance of showers Monday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Monday night and Tuesday AM, then a (30%) chance of showers Tuesday afternoon.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 64-66 cooling to 59 Monday warming to 63 Tuesday lows 45-43.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

Onshore airflow from a high pressure ridge (Shaded “Arch” shape with blue arrows) will cool our temperatures a bit and hold them steady for a while. A cold front will move through by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 33 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 84 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 36 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT HAS BEEN ISSUED UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MONROE, SHERMAN, UMATILLA, UNION, WILLOWA, WASCO, WHEELER, BENTON AND COLUMBIA COUNTIES IN OREGON.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny today, mostly clear tonight,
• Mostly sunny Wednesday, partly cloudy at night and Thursday, then mostly cloudy late Thursday night.
• highs 85-88 cooling back to 85 Thursday lows 50-58.
• Mostly cloudy with slight (20%) chance of AM rain, a bit cooler with a (30%) chance of showers Friday afternoon and Friday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Saturday and at night,
• Mostly cloudy with a (40%) chance of showers and a bit warmer Sunday and Sunday night,
• Then mostly cloudy with a (30%) chance of showers Monday.
• highs 79-74warming to 77 Monday lows 57-55. (seasonal averages high 82 low 50)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny with patchy smoke this afternoon, mostly clear tonight,
• Sunny in the AM, partly cloudy Wednesday afternoon and evening, mostly cloudy late at night,
• Then just mostly cloudy, areas of afternoon and evening smoke, Thursday and Thursday night.
• highs near 88 lows 57-59.
• Mostly cloudy and a bit cooler with a slight (20%) chance showers Friday afternoon, rain likely (60%) Friday night and Saturday, a (40%) chance of showers Saturday night through Sunday night,
• Then mostly cloudy with a slight (20%) chance of showers Monday.
• highs 83-79 lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Sunny this afternoon with patchy inland smoke, mostly clear this evening, mostly cloudy late tonight,
• Partly cloudy Wednesday with patchy AM fog, mostly cloudy in the afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers and patchy fog late Wednesday night,
• Patchy AM fog, mostly cloudy Thursday afternoon, then mostly cloudy with a slight (20%) chance of showers Thursday night.
• highs near 66 lows near 55.
• Mostly cloudy with a slight (20%) chance of showers Friday, mostly cloudy with rain likely (60%) at night and Saturday, then mostly cloudy with a (30%) chance of showers Saturday night through Monday.
• highs near 65-68 lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly sunny this afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late at night,
• Mostly sunny with a slight (20%) chance of showers and thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy late at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon and evening, then just mostly cloudy late Thursday night.
• free air freezing level 13,000 ft. today, snow level above 8,000 ft.  tonight through Thursday night.
• highs 78-74 lows near 48.
• Mostly cloudy and a bit cooler with a (40%) chance of showers Friday afternoon and at night,
• Mostly cloudy, breezy and cooler with a (40%) chance of showers Saturday and Saturday night,
• A mix of clouds and sun with a (40%) chance of showers Sunday, partly cloudy with a (40%) chance of evening showers, mostly cloudy with a (40%) chance of showers Sunday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Monday.
• snow level above 8,000 ft. Friday through Monday.
• highs 67-62 lows 45-43.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

Onshore airflow from a high pressure ridge (Shaded “Arch” shape with blue arrows) will cool our temperatures a bit and hold them steady for a while. A cold front will move through by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 153 in the Unhealthy category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 80 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT HAS BEEN ISSUED UNTIL FURTHER NOTICE FOR CROOK, DESCHUTES, GILLIAM, GRANT, JEFFERSON, MONROE, SHERMAN, UMATILLA, UNION, WILLOWA, WASCO, WHEELER, BENTON AND COLUMBIA COUNTIES IN OREGON.
• A RED FLAG WARNING IS IN EFFECT FOR HOT, DRY UNSTABLE CONDITIONS UNTIL 9 PM THIS EVENING FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS, THE NORTHERN BLUE MOUNTAINS, AND THE CENTRAL BLUE MOUNTAINS.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY UNTIL 9 PM THIS EVENING FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy tonight,
• Mostly sunny Tuesday, clear in the evening, partly cloudy at night,
• Mostly sunny Wednesday AM, partly cloudy in the afternoon through Thursday evening, then mostly cloudy late Thursday night.
• lows 48-58 highs 86-84.
• Partly cloudy with a (30%) chance of showers Friday afternoon and Friday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of  showers Saturday and at night,
• Mostly cloudy with a (40%) chance of showers Sunday and Sunday night,
• Then mostly cloudy with a (30%) chance of showers Monday.
• highs 82-78 lows 57-55. (seasonal averages high 82 low 50)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy with a slight (20%) chance of thunderstorms this evening, just mostly clear late tonight,
• Partly cloudy Tuesday AM, sunny in the afternoon, mostly clear at night,
• Sunny in the AM, partly cloudy Wednesday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late at night,
• Then just mostly cloudy Thursday and Thursday night.
• lows 56-59 highs near 88.
• Mostly cloudy with a (30%) chance showers Friday through Sunday night,
• Then mostly cloudy with a slight (20%) chance of showers Monday.
• highs 83-79 warming to 84 Monday lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Partly cloudy with patchy fog late tonight,
• Mostly cloudy with patchy AM fog, sunny Tuesday afternoon, mostly clear in the evening, clouds increasing to mostly cloudy late at night,
• Partly cloudy Wednesday with patchy AM fog, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
• Mostly cloudy Thursday, then mostly cloudy with a slight (20%) chance of showers late Thursday night.
• lows near 55 highs near 66.
• Then mostly cloudy with a (40%) chance of showers Friday through Monday.
• highs near 65-68 lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just partly cloudy late tonight,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, just partly cloudy late at night both Tuesday and Wednesday,
• Partly cloudy with a slight (20%) chance of showers and thunderstorms Thursday afternoon and evening, then just mostly cloudy late Thursday night.
• snow level above 8,000 ft. tonight through Thursday night.
• lows near 48 highs 75-78 cooling back to 75 Thursday.
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon, mostly cloudy with a (40%) chance of showers Friday night through Saturday night,
• A mix of clouds and sun with a (40%) chance of showers Sunday, partly cloudy with a (40%) chance of evening showers, mostly cloudy with a (40%) chance of showers Sunday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Monday.
• snow level above 8,000 ft. Friday through Monday.
• highs 70-64 warming to 67 Monday lows 45-43.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is the “water equivalent?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

Onshore airflow from a high pressure ridge (Shaded “Arch” shape with blue arrows) will cool our temperatures a bit and hold them steady for a while. A cold front will move through by the end of the week bringing the chance of some much needed showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 89 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 161 in the Unhealthy category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 79 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON TODAY FOR CROOK, DESCHUTES, GILLIAM,GRANT, JEFFERSON, MORROW, SHERMAN, UMATILLA, WASCO, WHEELER, BENTON, AND COLUMBIA COUNTIES.
• A RED FLAG WARNING IS IN EFFECT FOR HOT, DRY UNSTABLE CONDITIONS UNTIL 9 PM TIS EVENING FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS, THE NORTHERN BLUE MOUNTAINS, AND THE CENTRAL BLUE MOUNTAINS.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM 3PM UNTIL 9 PM TODAY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with haze and patchy AM smoke, mostly sunny and cooler today, mostly clear tonight,
• Mostly sunny Tuesday, mostly clear at night,
• Mostly sunny Wednesday AM, partly cloudy in the afternoon and evening, then mostly cloudy Wednesday night.
• highs near 85 lows 52-54.
• A mix of clouds and sun Thursday, partly cloudy in the evening, mostly cloudy Thursday night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday afternoon, becoming mostly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday AM, a bit cooler with a (40%) chance of afternoon showers, then cloudy and cooler with a (40%) chance of showers Saturday night and Sunday.
• highs 84-77 warming to 80 Sunday lows near 58. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy and hazy with areas of smoke this AM, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms late this afternoon and evening, just mostly clear late tonight,
• Sunny Tuesday AM, partly cloudy in the afternoon, mostly clear at night,
• Sunny in the AM, partly cloudy Wednesday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late at night.
• highs near 88 lows 55-58.
• Mostly cloudy with a slight (20%) chance of showers Thursday and in the evening, just mostly cloudy late Thursday night,
• Mostly cloudy with a slight (20%) chance showers and  a bit cooler Friday, a (30%) chance of showers at night and a bit cooler Saturday, then just a slight (20%) chance of showers Saturday night and Sunday.
• highs 86-80 warming to 83 SUnday lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with inland morning haze, partly cloudy this afternoon and tonight,
• Partly cloudy Tuesday, mostly clear at night,
  Partly cloudy Wednesday with patchy AM coastal fog, partly cloudy in the evening, mostly cloudy with patchy fog and a slight (20%) chance of showers late Wednesday night.
• highs near 66 lows near 55.
• Mostly cloudy with patchy fog and a slight (20%) chance of showers Thursday and in the evening, just mostly cloudy at night,
• Mostly cloudy with a slight (20%) chance of showers Friday afternoon, a (40%) chance of showers at night and Saturday, then a slight (20%) chance of showers Saturday night and Sunday.
• highs near 65-63 warming to 67 Saturday and Sunday lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers and thunderstorms late this afternoon and evening, just partly cloudy late tonight,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon and evening, just partly cloudy late at night,
• Mostly sunny in the AM, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Wednesday afternoon and evening, just partly cloudy at night.
• snow level above 8,000 ft. today through Wednesday night.
• highs near 76 lows near 48.
• A mix of clouds and sun Thursday, mostly cloudy with a slight (20%) chance of showers and thunderstorms late Thursday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers late Friday afternoon, mostly cloudy with a good (50%) chance of showers Friday night and Saturday, cloudy and a bit cooler with a good (50%) chance of showers Saturday night,
• Cloudy with a (40%) chance of showers Sunday AM, then a mix of clouds and sun with a (40%) chance of showers Sunday afternoon.
• free air freezing level 12,000 ft. Thursday, snow level above 8,000 ft. Thursday night through Sunday.
• highs 74-63 warming to 65 Sunday lows near 48.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Phenomenological Model?” Here is the correct answer. A Phenomenological Model is a computer model used to calculate air pollution concentrations. A phenomenological model focuses on an individual phenomenon, such as plume impingement or fumigation. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A ridge of high pressure (Shaded “Arch” shape with blue arrows) warmed us up again, but the smokey haze filtered the sun so it didn’t get quite as warm as expected. A trough of low pressure (Shaded “U” shape with blue arrows) will start to take over. A cold front will move through by the end of the week bringing the chance of showers with it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 185 in the Unhealthy category measuring Particulate Matter.

Oakridge: The Air Quality Index is 163 in the Unhealthy category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 179 in the Unhealthy category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON MONDAY FOR CROOK, DESCHUTES, GILLIAM,GRANT, JEFFERSON, MORROW, SHERMAN, UMATILLA, WASCO, WHEELER, BENTON, AND COLUMBIA COUNTIES.
• A RED FLAG WARNING IS IN EFFECT FOR HOT, DRY UNSTABLE CONDITIONS UNTIL 9 PM MONDAY FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS, THE NORTHERN BLUE MOUNTAINS, AND THE CENTRAL BLUE MOUNTAINS.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM 3PM UNTIL 9 PM MONDAY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Hazy this evening, clear late tonight,
• Mostly sunny and cooler Monday, mostly clear at night,
• A mix of clouds and sun Tuesday AM, mostly sunny and a bit cooler in the afternoon, mostly clear at night,
• Mostly sunny Wednesday AM, partly cloudy and a bit warmer in the afternoon and evening, then mostly cloudy Wednesday night.
• lows near 55 highs near 85.
• A mix of clouds and sun Thursday, partly cloudy in the evening, mostly cloudy Thursday night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday afternoon, becoming mostly cloudy with a slight (20%) chance of showers at night,
• Then mostly cloudy with a slight (20%) chance of showers Saturday AM, a bit cooler with a (40%) chance of afternoon showers, then cloudy with a (40%) chance of showers Saturday night and Sunday.
• highs 84-77 warming to 80 Sunday lows near 58. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear and hazy with patchy smoke this evening, haze and areas of smoke late tonight,
• Partly cloudy and hazy with areas of smoke Monday AM, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms in the afternoon and evening, just clear late Monday night,
• Mostly sunny Tuesday AM, partly cloudy in the afternoon, mostly clear at night,
• Sunny in the AM, partly cloudy Wednesday afternoon and at night with a slight (20%) chance of showers late at night.
• lows near 58 highs 93-90.
• Partly cloudy Thursday AM, mostly cloudy with a slight (20%) chance of showers in the afternoon and evening, just mostly cloudy late Thursday night,
• Mostly cloudy with a slight (20%) chance showers Friday, a (30%) chance of showers at night and a bit cooler Saturday, then just a slight (20%) chance of showers Saturday night and Sunday.
• highs 88-83 lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Inland haze, otherwise partly cloudy this evening and mostly cloudy late tonight,
• Mostly cloudy with inland morning haze, partly cloudy Monday afternoon and Monday night,
• Partly cloudy Tuesday, mostly clear at night,
  Partly cloudy Wednesday, mostly cloudy with patchy fog and a slight (20%) chance of showers Wednesday night.
• lows near 55 highs near 66.
• Mostly cloudy with patchy fog and a slight (20%) chance of showers Thursday and in the evening, just mostly cloudy at night,
• Mostly cloudy with a slight (20%) chance of showers Friday afternoon, a (40%) chance of showers at night and Saturday, then a slight (20%) chance of showers Saturday night and Sunday.
• highs near 66 lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Hazy this evening, mostly clear late tonight,
• Mostly sunny and a bit cooler Monday, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, just partly cloudy at night,
• Mostly sunny and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, mostly clear with a slight (20%) chance of evening showers and thunderstorms, just mostly clear late at night,
• Mostly sunny in the AM, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Wednesday afternoon and evening, then just partly cloudy at night.
• free air freezing level 14,000 ft. tonight and Monday, snow level above 8,000 ft. Monday night through Wednesday night.
• lows near 50 highs near 76.
• A mix of clouds and sun Thursday, mostly cloudy with a slight (20%) chance of showers and thunderstorms late Thursday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers late Friday afternoon, mostly cloudy with a good (50%) chance of showers Friday night and Saturday, cloudy and a bit cooler with a good (50%) chance of showers Saturday night,
• Cloudy with a (40%) chance of showers Sunday AM, then a mix of clouds and sun with a (40%) chance of showers Sunday afternoon.
• free air freezing level 12,000 ft. Thursday, snow level above 8,000 ft. Thursday night through Sunday.
• highs 78-72 lows near 50.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Phenomenological Model?” Here is the correct answer. A Phenomenological Model is a computer model used to calculate air pollution concentrations. A phenomenological model focuses on an individual phenomenon, such as plume impingement or fumigation. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A ridge of high pressure (Shaded “Arch” shape with blue arrows) will warm us up again today. Looks like nice weather for the rest of the Festival of Eugene. A trough of low pressure (Shaded “U” shape with blue arrows) will take over next week. One cold front will move through by the end of the week bringing the chance of showers and another front will be behind it.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 239 in the Very Unhealthy category measuring Particulate Matter.

Oakridge: The Air Quality Index is 83 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 210 in the Very Unhealthy category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 5 PM TODAY FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, THE NORTHERN OREGON CASCADES, THE UPPER HOOD RIVER VALLEY AND THE WESTERN COLUMBIA RIVER GORGE.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON TODAY FOR CROOK, DESCHUTES, GILLIAM,GRANT, JEFFERSON, MORROW, SHERMAN, UMATILLA, WASCO, WHEELER, BENTON, AND COLUMBIA COUNTIES.
• A RED FLAG WARNING IS IN EFFECT FOR HOT, DRY UNSTABLE CONDITIONS FROM NOON TODAY UNTIL 9 PM MONDAY FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS, THE NORTHERN BLUE MOUNTAINS, AND THE CENTRAL BLUE MOUNTAINS.
• A FIRE WEATHER WATCH IS IN EFFECT FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON THROUGH THIS EVENING FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny, quite warm and hazy with more smoke today, evening haze, clear late tonight,
• Mostly sunny and cooler Monday, partly cloudy at night,
• Mostly sunny and a bit cooler Tuesday, then mostly clear at night.
• highs 92-85 lows 56-54.
• Mostly sunny Wednesday AM, partly cloudy and a bit warmer in the afternoon through Thursday, a slight (20%) chance of showers late Thursday night,
• A mix of clouds and sun with a slight (20%) chance of AM showers, a (30%) chance of showers Friday afternoon, becoming mostly cloudy with a (40%) chance of showers late at night,
• Then mostly cloudy with a good (50%) chance of showers and a bit cooler Saturday.
• highs 88-84 lows 55-58. (seasonal averages high 82 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy with haze and patchy smoke this AM, sunny with haze and patchy smoke this afternoon, mostly clear and hazy with patchy smoke in the evening, haze and areas of smoke late tonight,
• Partly cloudy and hazy with areas of smoke Monday AM, partly cloudy hazy and a bit cooler with a slight (20%) chance of thunderstorms in the afternoon and evening, just partly cloudy and hazy late Monday night,
• Mostly sunny Tuesday, mostly clear at night.
• highs 93-90 lows near 58.
• Partly cloudy Wednesday through Thursday night,
• Then mostly cloudy with a slight (20%) chance showers Friday through Saturday.
• highs 88-83 lows near 58. (seasonal averages high 84 low 55)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Partly cloudy and hazy today, mostly clear this evening with inland haze, partly cloudy with inland haze late tonight,
• Mostly cloudy with inland morning haze, partly cloudy Monday afternoon and Monday night,
• Mostly sunny Tuesday, then mostly clear at night.
• highs near 66 lows near 55.
• Partly cloudy Wednesday through Thursday night,
• Then mostly cloudy with a slight (20%) chance of showers Friday through Saturday.
• highs near 66 lows near 56. (seasonal averages high 66 low 53).

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Forecast for the Cascades in Lane County:

• Mostly sunny today and warmer with haze and smoke, mostly clear and hazy tonight,
• Mostly sunny and a bit cooler Monday, partly cloudy at night,
• Mostly sunny and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, mostly clear with a slight (20%) chance of evening showers and thunderstorms, then mostly clear at night.
• free air freezing level 15,000 ft. today, 14,000 ft. tonight and Monday, snow level above 8,000 ft. Monday night through Tuesday night.
• highs 80-76 lows near 49.
• Mostly sunny in the AM, partly cloudy and a bit warmer Wednesday afternoon and at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon and evening, just mostly cloudy late Thursday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers late Friday afternoon, mostly cloudy with a slight (20%) chance of evening showers, a (40%) chance of showers late at night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of showers Saturday.
• free air freezing level 14,000 ft. Wednesday, 13,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday through Saturday.
• highs 78-72 lows near 50.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Phenomenological Model?” Here is the correct answer. A Phenomenological Model is a computer model used to calculate air pollution concentrations. A phenomenological model focuses on an individual phenomenon, such as plume impingement or fumigation. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A ridge of high pressure (Shaded “Arch” shape with blue arrows) will warm us up again through the rest of the weekend. Looks like nice weather for the rest of the Festival of Eugene. A trough of low pressure (Shaded “U” shape with blue arrows will take over next week. One cold front will move through by the end of the week bringing the chance of showers and  with another front will be behind it.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 35 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY UNTIL 11 PM TONIGHT FOR THE ENTIRE WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS AND THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Areas of smoke and hazy tonight,
• Mostly sunny, hot and hazy with more smoke Sunday, evening haze, clear Sunday night,
• Mostly sunny and cooler Monday, partly cloudy at night,
• Mostly sunny and a bit cooler Tuesday, then mostly clear at night.
• lows 57-54 highs 92-85.
• Mostly sunny Wednesday AM, partly cloudy and a bit warmer in the afternoon through Thursday night,
• A mix of clouds and sun Friday, becoming mostly cloudy with a slight (20%) chance of showers late at night,
• Then mostly cloudy with a (40%) chance of showers and a bit cooler Saturday.
• highs 88-84 lows 55-58. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear with haze and patchy smoke tonight and Sunday AM, sunny and hazy with patchy smoke in the afternoon, mostly clear and hazy with patchy smoke in the evening, areas of smoke late Sunday night,
• Partly cloudy and hazy with areas of smoke Monday AM, partly cloudy hazy and a bit cooler with a slight (20%) chance of thunderstorms in the afternoon and evening, just partly cloudy and hazy late Monday night,
• Mostly sunny Tuesday, mostly clear at night.
• lows 59-56 highs 93-90.
• Partly cloudy Wednesday through Thursday night,
• Then mostly cloudy with a slight (20%) chance showers Friday through Saturday.
• highs 88-83 lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly clear this evening, partly cloudy and hazy late tonight and Sunday, mostly clear in the evening with inland haze, partly cloudy with inland haze late Sunday night,
• Mostly cloudy with inland morning haze, partly cloudy Monday afternoon and Monday night,
• Mostly sunny Tuesday, then mostly clear at night.
• lows near 55 highs near 66.
• Partly cloudy Wednesday through Thursday night,
• Then mostly cloudy with a slight (20%) chance of showers Friday through Saturday.
• highs near 66 lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly clear with haze and areas of smoke tonight,
• Mostly sunny Sunday and warmer with haze and smoke in the afternoon, mostly clear at night,
• Mostly sunny and a bit cooler Monday, partly cloudy at night,
• Mostly sunny and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, mostly clear with a slight (20%) chance of evening showers and thunderstorms, then mostly clear at night.
• free air freezing level 15,000 ft. tonight and Sunday, 14,000 ft. Sunday night and Monday, snow level above 8,000 ft. Monday night through Tuesday night.
• lows 52-49 highs 80-76.
• Mostly sunny in the AM, partly cloudy and a bit warmer Wednesday afternoon and at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon and evening, just mostly cloudy late Thursday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers late Friday afternoon, mostly cloudy with a slight (20%) chance of showers at night,
• Then mostly cloudy and a bit cooler with a (40%) chance of showers Saturday.
• free air freezing level 14,000 ft. Wednesday, 13,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday through Saturday.
• highs 78-72 lows near 50.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Phenomenological Model?” Here is the correct answer. A Phenomenological Model is a computer model used to calculate air pollution concentrations. A phenomenological model focuses on an individual phenomenon, such as plume impingement or fumigation. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A ridge of high pressure (Shaded “Arch” shape with blue arrows) will warm us up again through the weekend. Looks like nice weather for the rest of the Festival of Eugene. A trough of low pressure (Shaded “U” shape with blue arrows will take over next week.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 19 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM NOON UNTIL 11 PM TONIGHT FOR THE ENTIRE WILLAMETTE VALLEY.
• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM 5 AM UNTIL 11 PM TONIGHT FOR THE NORTH OREGON CASCADE FOOTHILLS AND THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. WATER MONITORING BY THE USGS HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE TOXINS WHICH CAN BE HARMFUL TO HUMANS AND ANIMALS. SWALLOWING, INHALING OR SKIN CONTACT WITH WATER DROPLETS SHOULD BE AVOIDED.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

____________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Sunny, hazy and warmer today, clear and hazy tonight,
• Mostly sunny, hot and hazy Sunday, mostly clear Sunday night,
• Mostly sunny and cooler Monday, then mostly clear at night.
• highs 92-85 lows 54-50.
• Mostly sunny Tuesday, Wednesday and Thursday, mostly clear Tuesday night and Wednesday night, then partly cloudy Thursday night and Friday.
• highs 86-83 lows 52-54. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny and hazy with patchy smoke and warmer today, clear with haze and patchy smoke tonight,
• Mostly sunny and hazy with patchy smoke Sunday, mostly clear and hazy with patchy smoke in the evening, areas of smoke late Sunday night,
• Hazy with areas of smoke Monday AM, partly cloudy hazy and cooler with a slight (20%) chance of thunderstorms in the afternoon and evening, then mostly clear and hazy late Monday night.
• highs 93-90 lows 59-56.
• Partly cloudy Tuesday through Friday.
• highs 88-83 lows near 58. (seasonal averages high 84 low 55)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Sunny today, clear this evening, partly cloudy late tonight and Sunday, mostly cloudy in the evening, partly cloudy late Sunday night,
• Then partly cloudy Monday and Monday night.
• highs near 66 lows near 56.
• Partly cloudy Tuesday through Thursday night,
• Then  mostly cloudy Friday.
• highs near 66 lows near 56. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Sunny, hazy and a bit warmer today, clear and hazy tonight,
• Mostly sunny Sunday AM, partly cloudy and warmer in the afternoon and at night,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday afternoon and evening, just partly cloudy at night.
• free air freezing level 16,000 ft. today, 15,000 ft. tonight, 14,000 ft. Sunday and Sunday night, then snow level above 8,000 ft. Monday and Monday night.
• highs 78-82 cooling to 75 Monday lows 50-46.
• Mostly sunny Tuesday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, just partly cloudy late Tuesday night,
• Mostly sunny in the AM, partly cloudy and a bit cooler Wednesday afternoon and at night,
• Mostly sunny Thursday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, just partly cloudy late Thursday night,
• Then partly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon.
• snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 14,000 ft. Wednesday, 13,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday through Friday.
• highs 75-73 lows near 45.

_______________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________