Here is my new weekly weather quiz question. What is a “Phenomenological Model?” 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. 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 Ozone.

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

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Ozone.

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 SATURDAY FOR THE ENTIRE WILLAMETTE VALLEY.
• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM 5 AM UNTIL 11 PM SATURDAY FOR THE NORTH OREGON CASCADE FOOTHILLS AND THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST.
• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY THROUGH 11 PM TONIGHT FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON AND THE LOWER COLUMBIA BASIN.
• 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,
• Sunny, hazy and warmer Saturday, clear and hazy at night,
• Mostly sunny, hot and hazy Sunday, mostly clear Sunday night,
• Mostly sunny and cooler Monday, then mostly clear at night.
• lows 45-54 cooling to near 50 Monday night highs 92-85.
• 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:

• Clear this evening with patchy smoke, hazy with areas of smoke late tonight,
• Sunny and hazy with patchy smoke and warmer Saturday, clear with haze and patchy smoke at night,
• 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.
• lows 54-59 cooling to 56 Monday night highs 93-90.
• 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:

• Clear tonight,
• Sunny Saturday, clear in the evening, partly cloudy late at night and Sunday, mostly cloudy in the evening, partly cloudy late Sunday night,
• Then partly cloudy Monday and Monday night.
• lows 52-56 highs near 66.
• 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:

• Clear with haze tonight,
• Sunny, hazy and a bit warmer Saturday, clear and hazy at night,
• 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 15,000 ft. tonight, 16,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday and Sunday night, then snow level above 8,000 ft. Monday and Monday night.
• lows 42-50 cooling to 46 Monday night highs 78-82 cooling to 75 Monday.
• 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.

________________

Here is my new weekly weather quiz question. What is a “Phenomenological Model?” 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. 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 24 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 20 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 THROUGH 11 PM TONIGHT FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON AND THE LOWER COLUMBIA BASIN.
• 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 cloudy this AM, mostly sunny this afternoon, mostly clear tonight,
• Mostly sunny and warmer Saturday and Sunday, mostly clear both nights,
• highs 82-92 lows 48-56 cooling to 53 Sunday night.
• Mostly sunny and cooler Monday, partly cloudy at night,
• Mostly sunny in the AM, partly cloudy and cooler Tuesday afternoon, then partly cloudy Tuesday night through Thursday.
• highs 85-80 lows near 52. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy this AM, sunny, hazy and a bit cooler with patchy smoke this afternoon, clear this evening with patchy smoke, hazy with areas of smoke late tonight,
• Sunny and hazy with patchy smoke and warmer Saturday, clear with haze and patchy smoke at night,
• Mostly sunny and hazy with patchy smoke Sunday, then mostly clear and hazy with patchy smoke Sunday night.
• highs 84-92 lows 54-59.
• Sunny and hazy with patchy smoke Monday AM, partly cloudy hazy and cooler with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, mostly clear and hazy late Monday night,
• Sunny with a slight (20%) chance of thunderstorms Tuesday afternoon, mostly cloudy with a slight (20%) chance of evening thunderstorms, mostly cloudy late Tuesday night,
• Partly cloudy Wednesday through Thursday AM, then sunny in the afternoon.
• highs 88-86 lows 56-53. (seasonal averages high 84 low 55)

________________

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

• Partly cloudy this AM, sunny and a bit warmer this afternoon, mostly clear tonight,
• Sunny and a bit warmer Saturday and Sunday, clear Saturday night, then partly cloudy Sunday night.
• highs near 67 lows 52-56.
• Partly cloudy Monday through Thursday.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly sunny and cooler today, clear tonight,
• Sunny and a bit warmer Saturday, mostly clear at night,
• Mostly sunny Sunday AM, then partly cloudy and warmer in the afternoon and at night.
• free air freezing level 15,000 ft. today and tonight, 15,000 ft. Saturday night, then 14,000 ft. Sunday and Sunday night.
• highs 69-82 lows 42-50.
• Mostly sunny in the AM, partly cloudy and a bit cooler Monday afternoon and  at night,
• 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,
• Then a mix of clouds and sun and a bit cooler Wednesday, partly cloudy at night,
• Then partly cloudy with a slight (20%) chance of showers and thunderstorms Thursday afternoon.
• free air freezing level 14,000 ft. Monday and Monday night, snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 11,000 ft. Wednesday, 12,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday.
• 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.

________________

Here is my new weekly weather quiz question. What is a “Phenomenological Model?” 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. 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 30 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 in the Good category measuring Ozone.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY THROUGH 11 PM FRIDAY FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON AND THE LOWER COLUMBIA BASIN.
• 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 this evening, mostly cloudy late tonight and Friday AM, mostly sunny in the afternoon, mostly clear Friday night,
• Mostly sunny and warmer Saturday and Sunday, mostly clear both nights,
• lows 52-48 warming to 56 Saturday cooling to 53 Sunday night highs 82-92.
• Mostly sunny and cooler Monday, partly cloudy at night,
• Mostly sunny in the AM, partly cloudy and cooler Tuesday afternoon and evening, mostly cloudy at night,
• A mix of clouds and sun and a bit cooler Wednesday, then partly cloudy Wednesday night and Thursday.
• highs 85-80 lows near 52. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear and cooler this evening, partly cloudy late tonight,
• Mostly cloudy Friday AM, sunny, hazy and a bit cooler with patchy smoke in the afternoon, clear in the evening with patchy smoke, hazy with areas of smoke late Friday night,
• Sunny and hazy with patchy smoke and warmer Saturday, clear with haze and patchy smoke at night,
• Mostly sunny and hazy with patchy smoke Sunday, then mostly clear and hazy with patchy smoke Sunday night.
• lows 56-54 warming to 59 Sunday night highs 84-92.
• Sunny and hazy with patchy smoke Monday AM, partly cloudy hazy and cooler with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, mostly clear and hazy late Monday night,
• Sunny with a slight (20%) chance of thunderstorms Tuesday afternoon, mostly cloudy with a slight (20%) chance of evening thunderstorms, mostly cloudy late Tuesday night,
• Partly cloudy Wednesday through Thursday AM, then sunny in the afternoon.
• highs 88-86 lows 56-53. (seasonal averages high 84 low 55)

________________

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

• Partly cloudy this evening, mostly cloudy late tonight,
• Partly cloudy in the AM, sunny and a bit warmer Friday afternoon, mostly clear at night,
• Sunny and a bit warmer Saturday and Sunday, clear Saturday night, then partly cloudy Sunday night.
• lows 55-52 warming back to 56 Sunday night highs near 67.
• Partly cloudy Monday through Thursday.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny and cooler Friday, clear at night,
• Sunny and a bit warmer Saturday, mostly clear at night,
• Mostly sunny Sunday AM, then partly cloudy and warmer in the afternoon and at night.
• free air freezing level 15,000 ft. tonight through Saturday night, then 14,000 ft. Sunday and Sunday night.
• lows 44-42 warming to 50 Sunday night highs 69-82.
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday afternoon and at night,
• 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,
• Then a mix of clouds and sun and a bit cooler Wednesday, partly cloudy at night,
• Then partly cloudy with a slight (20%) chance of showers and thunderstorms Thursday afternoon.
• free air freezing level 14,000 ft. Monday and Monday night, snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 10,000 ft. Wednesday, 11,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday.
• 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.

________________

Here is my new weekly weather quiz question. What is a “Phenomenological Model?” 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.

________________

We’ll be alternating from high pressure (Shaded “Arch” shape with blue arrows) to low pressure (Shaded “U” shape with blue arrows on previous graphic) and back again. First we’ll cool down, then we’ll warm up again. A cold front is moving down from the northwest to bring cooler air our way today.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 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 THROUGH 11 PM FRIDAY FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON AND THE LOWER COLUMBIA BASIN.
• 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 this AM, mostly sunny and cooler this afternoon, partly cloudy tonight,
• Mostly cloudy Friday AM, partly cloudy in the afternoon, then mostly clear Friday night,
• Mostly sunny and warmer Saturday, then mostly clear at night.
• highs 82-80 warming to 90 Saturday lows 52-48 warming to 56 Saturday night.
• Mostly sunny and warmer Sunday, mostly sunny and cooler Monday, mostly clear each night,
• Mostly sunny in the AM, partly cloudy and cooler Tuesday afternoon and evening, mostly cloudy at night,
• Then a mix of clouds and sun and a bit cooler Wednesday.
• highs 92-78 lows 54-50. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy today with patchy AM fog and haze, mostly sunny, hazy and cooler this afternoon, mostly clear and cooler this evening, partly cloudy late tonight and Friday AM, sunny, hazy and a bit cooler with patchy smoke Friday afternoon, clear and hazy with patchy smoke Friday night,
• Sunny and hazy with patchy smoke and warmer Saturday, clear with haze and patchy smoke at night.
• highs 86-83 warming to 90 Saturday lows 56-52 warming to 57 Saturday night.
• Mostly sunny and hazy with patchy smoke Sunday, mostly clear and hazy with patchy smoke Sunday night,
• Partly cloudy and hazy with patchy smoke Monday AM, hazy and cooler with a slight (20%) chance of thunderstorms in the afternoon, partly cloudy and hazy with a slight (20%) chance of thunderstorms Monday night through Tuesday evening, mostly cloudy late Tuesday night,
• Then mostly cloudy in the AM partly cloudy Wednesday.
• highs 92-85 lows 58-55. (seasonal averages high 84 low 55)

________________

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

• Mostly cloudy with patchy fog inland this AM, partly cloudy this afternoon, mostly clear this evening, mostly cloudy late tonight,
• Partly cloudy in the AM, sunny and a bit warmer Friday afternoon, mostly clear at night,
• Sunny and a bit warmer Saturday, then clear at night.
• highs 65-67 cooling back to 65 Saturday lows 55-52 warming back to 55 Saturday night.
• Sunny and a bit cooler Sunday, mostly clear in the evening, partly cloudy late Sunday night through Wednesday.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly sunny and cooler today and Friday, mostly clear both nights,
• Sunny and a bit warmer Saturday, then mostly clear at night.
• free air freezing level 15,000 ft. today and tonight, 14,000 ft. Friday, then 15,000 ft. Friday night through Saturday night.
• highs 72-68 warming to 76 Saturday lows 44-42 warming to 49 Saturday night.
• Mostly sunny Sunday AM, partly cloudy and warmer in the afternoon, partly cloudy Sunday night,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday afternoon and at night,
• 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,
• Then a mix of clouds and sun and a bit cooler Wednesday.
• free air freezing level 14,000 ft. Sunday and Sunday night, snow level above 8,000 ft. Monday through Tuesday night, then free air freezing level 11,000 ft. Wednesday.
• highs 81-70 lows 50-44.

_______________

**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 a “Phenomenological Model?” 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.

________________

We’ll be alternating from high pressure (Shaded “Arch” shape with blue arrows) to low pressure (Shaded “U” shape with blue arrows on previous graphic) and back again. First we’ll cool down, then we’ll warm up again. A cold front will move down from the northwest to bring cooler air our way Thursday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 80 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 64 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 64 in the Moderate 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 THROUGH 11 PM FRIDAY FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE CENTRAL MOUNTAINS OF 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:

• Clear tonight,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, partly cloudy Thursday night,
• Mostly cloudy Friday AM, partly cloudy in the afternoon, then mostly clear Friday night,
• Mostly sunny and warmer Saturday, then mostly clear at night.
• lows 56-48 highs 82-80 warming to 90 Saturday.
• Mostly sunny and warmer Sunday, mostly sunny and cooler Monday, mostly clear each night,
• Mostly sunny in the AM, partly cloudy and cooler Tuesday afternoon and evening, mostly cloudy at night,
• Then a mix of clouds and sun and a bit cooler Wednesday.
• highs 90-78 lows 54-50. (seasonal averages high 82 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear with haze and patchy fog late tonight,
• Partly cloudy Thursday with patchy AM fog and haze, mostly sunny, hazy and cooler in the afternoon, mostly clear and cooler in the evening, partly cloudy late Thursday night and Friday AM, sunny, hazy with patchy smoke Friday afternoon, clear and hazy with patchy smoke Friday night,
• Sunny and hazy with patchy smoke and a bit warmer Saturday, clear with haze and patchy smoke at night.
• lows 60-53 highs 98-83.
• Sunny and hazy with patchy smoke and a bit cooler Sunday, partly cloudy and hazy with patchy smoke Sunday night and Monday (cooler), mostly cloudy and hazy in the evening, mostly clear and hazy with patchy smoke Monday night,
• Partly cloudy and hazy Tuesday AM, a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, mostly cloudy late Tuesday night,
• Then mostly cloudy and a bit warmer Wednesday.
• highs 92-84 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, mostly cloudy with patchy coastal fog and drizzle late tonight while mostly cloudy with patchy inland fog late tonight,
• Mostly cloudy with patchy fog inland Thursday AM, partly cloudy in the afternoon, mostly clear in the evening, mostly cloudy late at night,
• Partly cloudy in the AM, sunny and a bit warmer Friday afternoon, mostly clear at night,
• Sunny and a bit warmer Saturday, then clear at night.
• lows 56-58 cooling to 52 Friday night highs 67-65 warming back to 67 Friday.
• Sunny and a bit cooler Sunday, mostly clear in the evening, mostly cloudy late Sunday night  Monday, partly cloudy Monday night through Tuesday night,
• Then mostly cloudy Wednesday AM and partly cloudy in the afternoon.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Clear and cooler tonight,
• Mostly sunny and cooler Thursday and Friday, mostly clear both nights,
• Sunny and a bit warmer Saturday, then mostly clear at night.
• free air freezing level 15,000 ft. tonight through Thursday night, 14,000 ft. Friday, then 15,000 ft. Friday night through Saturday night.
• lows 49-42 highs 72-70 warming to 76 Saturday.
• Mostly sunny Sunday AM, partly cloudy and warmer in the afternoon, mostly clear Sunday  night,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Monday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, partly cloudy at night,
• 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,
• Then a mix of clouds and sun and a bit cooler Wednesday.
• free air freezing level 14,000 ft. Sunday and Sunday night, snow level above 8,000 ft. Monday through Tuesday night, then free air freezing level 11,000 ft. Wednesday.
• highs 76-72 lows 50-47.

_______________

**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 a “Phenomenological Model?” 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.

________________

Not much relief from the drought, but with northwesterly winds at least we cleared out some smoke.  A short-lived upper level high pressure ridge (Shaded “Arch” shape with blue arrows) really heated us up Tuesday, though not quite as hot as I expected. It will keep us hot again today. A trough of low pressure (Shaded “U” shape with blue arrows on previous graphic) will cool us back down rather quickly. A frontal system moves through in the middle of next week.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 80 in the Moderate 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 60 in the Moderate category measuring Particulate Matter.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FROM UNTIL 6 PM TODAY FOR UNSTABLE CONDITIONS COMBINED WITH CRITICALLY DRY FUELS FOR THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE, THE WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS, THE CENTRAL OREGON CASCADE FOOTHILLS, THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST, AND THE WILLAMETTE NATIONAL FOREST.
• A RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM 2 PM TODAY THROUGH 11 PM FRIDAY FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE CENTRAL MOUNTAINS OF OREGON.
• A HEAT ADVISORY IS IN EFFECT UNTIL 6 PM TODAY  FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• 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 still hot today, clear tonight,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, partly cloudy Thursday night,
• Mostly cloudy Friday AM, mostly sunny in the afternoon, then mostly clear Friday night.
• highs 96-82 lows 56-49.
• Mostly sunny and a bit warmer Saturday and Sunday, sunny and a bit cooler Monday, clear each night,
• Then mostly sunny and cooler Tuesday.
• highs 90-80 lows 56-52. (seasonal averages high 83 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny and hot with haze and areas of smoke today, mostly clear with areas of evening haze, patchy fog with haze and smoke late tonight,
• Partly cloudy with patchy fog, haze and a slight (20%) chance of drizzle Thursday AM, sunny, hazy and cooler in the afternoon, mostly clear and hazy Thursday night,
• Partly cloudy and hazy in the AM, sunny, hazy and cooler Friday, hazy and clear Friday night.
• highs 98-83 lows 60-53.
• Sunny, hazy and a bit warmer Saturday, mostly clear and hazy at night,
• Sunny and hazy Sunday, clear and hazy Sunday night,
• Mostly sunny, hazy and a bit cooler Monday, mostly clear and hazy in the evening, then partly cloudy and hazy Sunday night and cooler Monday.
• highs 92-84 lows near 58. (seasonal averages high 84 low 55)

________________

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

• Mostly cloudy with patchy AM coastal fog and a slight (20%) chance of inland drizzle, partly with patchy coastal afternoon fog today while patchy AM fog inland and sunny this afternoon, patchy fog late tonight inland while mostly clear in the evening and mostly cloudy with patchy coastal fog with a slight (20%) chance of coastal drizzle late tonight,
• Mostly cloudy with patchy fog Thursday AM and a slight (20%) chance of inland AM drizzle, sunny and a bit cooler in the afternoon, mostly clear in the evening, partly cloudy at night,
• Partly cloudy in the AM, sunny and a bit warmer Friday afternoon, then mostly clear at night.
• highs 67-65 warming back to 67 Friday lows 56-58 cooling to 52 Friday night.
• Mostly sunny Saturday, clear at night,
• Mostly sunny Sunday, partly cloudy Sunday night through Tuesday.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Sunny hazy, and a bit cooler today, clear and cooler tonight,
• Mostly sunny and cooler Thursday, mostly clear at night.
• Sunny and a bit cooler Friday, then clear Friday night.
• free air freezing level 16,000 ft. today and tonight, 15,000 ft. Thursday and Thursday night, then 14,000 ft. Friday, then 15,000 ft. Friday night.
• highs 83-70 lows 49-42.
• Sunny and a bit warmer Saturday, mostly clear at night,
• Mostly sunny Sunday AM, partly cloudy in the afternoon, mostly clear Sunday  night,
• Mostly sunny in the AM, partly cloudy and a bit cooler Monday, partly cloudy at night,
• Mostly sunny Tuesday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon.
• free air freezing level 16,000 ft. Saturday, 15,000 ft. Saturday night through Sunday night, 14,000 ft. Monday and Monday night, then snow level above 8,000 ft. Tuesday.
• highs 76-72 lows 50-47.

_______________

**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 a “Phenomenological Model?” 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.

________________

Not much relief from the drought, but with northwesterly winds at least we cleared out some smoke.  A short-lived upper level high pressure ridge (Shaded “Arch” shape with blue arrows) really heated us up today and will keep us hot Wednesday. Look for record highs for Eugene and Roseburg for today. A trough of low pressure (Shaded “U” shape with blue arrows on previous graphic) will cool us back down rather quickly.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 49 in the Good category measuring Particulate Matter.

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

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

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FROM UNTIL 6 PM WEDNESDAY FOR UNSTABLE CONDITIONS COMBINED WITH CRITICALLY DRY FUELS FOR THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE, THE WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS, THE CENTRAL OREGON CASCADE FOOTHILLS, THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST, AND THE WILLAMETTE NATIONAL FOREST.
• AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
• A FIRE WEATHER WATCH IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM WEDNESDAY AFTERNOON THROUGH THE EVENING FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE CENTRAL MOUNTAINS OF OREGON.
• A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON AND THE LOWER COLUMBIA.
• A HEAT ADVISORY IS IN EFFECT UNTIL 6 PM WEDNESDAY  FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• 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 and hazy tonight,
• Sunny, hazy and still hot Wednesday, clear at night,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, partly cloudy Thursday night,
• Mostly cloudy Friday AM, partly cloudy afternoon, then mostly clear Friday night.
• lows 56-49 highs 96-82.
• Sunny and a bit warmer Saturday and Sunday, sunny and a bit cooler Monday, clear each night,
• Then mostly sunny and cooler Tuesday.
• highs 90-80 lows 56-52. (seasonal averages high 83 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Clear with areas of haze and smoke tonight,
• Sunny and hot with haze and areas of smoke Wednesday,  mostly clear with areas of evening haze and mostly clear with haze and smoke late Wednesday night,
• Partly cloudy with patchy fog, haze and a slight (20%) chance of drizzle Thursday AM, sunny, hazy and cooler in the afternoon, mostly clear and hazy Thursday night,
• Partly cloudy and hazy in the AM, sunny, hazy and cooler Friday, hazy and clear Friday night.
• lows 60-53 highs 98-83.
• Sunny, hazy and a bit warmer Saturday, mostly clear and hazy at night,
• Sunny and hazy Sunday, clear and hazy Sunday night,
• Mostly sunny, hazy and a bit cooler Monday, mostly clear and hazy in the evening, then partly cloudy and hazy Sunday night and cooler Monday.
• highs 92-84 lows near 58. (seasonal averages high 85 low 55)

________________

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

• Partly cloudy this evening and mostly cloudy with patchy coastal fog late while clear with inland haze and areas of smoke this evening and areas of fog late tonight,
• Mostly cloudy with patchy AM coastal fog and a slight (20%) chance of inland drizzle, partly with patchy coastal afternoon fog Wednesday while patchy AM fog inland and sunny Wednesday afternoon, patchy fog late at night inland while mostly clear in the evening and mostly cloudy with patchy coastal fog with a slight (20%) chance of coastal drizzle late Wednesday night,
• Mostly cloudy with patchy fog Thursday AM and a slight (20%) chance of inland AM drizzle, sunny and a bit cooler in the afternoon, mostly clear in the evening, partly cloudy at night,
• Mostly sunny and a bit warmer Friday, then mostly clear at night.
• lows 56-58 cooling to 52 Friday night highs 67-65 warming back to 67 Friday.
• Sunny Saturday, clear at night,
• Mostly sunny Sunday and Monday, mostly clear Sunday night, then partly cloudy Monday night and Tuesday.
• highs near 66 lows near 55. (seasonal averages high 66 low 53).

________________

Forecast for the Cascades in Lane County:

• Mostly clear and hazy tonight,
• Sunny hazy, and a bit cooler Wednesday, clear and cooler Wednesday night,
• Mostly sunny and cooler Thursday, mostly clear at night.
• Sunny and a bit cooler Friday, then clear Friday night.
• free air freezing level 16,000 ft. tonight through Wednesday night, 15,000 ft. Thursday and Thursday night, then 14,000 ft. Friday and Friday night.
• lows 52-42 highs 83-70.
• Sunny and a bit warmer Saturday and Sunday, mostly clear both nights,
• Mostly sunny and a bit cooler Monday, mostly clear at night,
• Sunny Tuesday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon.
• free air freezing level 16,000 ft. Saturday, 15,000 ft. Saturday night and  Sunday, 14,000 ft. Sunday night, and Monday, 13,000 ft. Monday night, then snow level above 8,000 ft. Tuesday.
• highs 76-72 lows 50-47.

_______________

**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 a “Phenomenological Model?” 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.

________________

Not much relief from the drought, but with northwesterly winds at least we cleared out some smoke.  A short-lived upper level high pressure ridge (Shaded “Arch” shape with blue arrows) will really heat us up today and Wednesday. Look for record highs for Eugene and Roseburg today. A trough of low pressure (Shaded “U” shape with blue arrows on previous graphic) will cool us back down rather quickly.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 40 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 50 in the Good category measuring Ozone.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FROM 11 AM TODAY UNTIL 6 PM WEDNESDAY FOR UNSTABLE CONDITIONS COMBINED WITH CRITICALLY DRY FUELS FOR THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE, THE WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS, THE CENTRAL OREGON CASCADE FOOTHILLS, THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST, AND THE WILLAMETTE NATIONAL FOREST.
• A FIRE WEATHER WATCH IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM WEDNESDAY AFTERNOON THROUGH THE EVENING FOR THE EAST SLOPES OF THE OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE CENTRAL MOUNTAINS OF OREGON.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 9 PM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON AND THE LOWER COLUMBIA.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM TODAY UNTIL 6 PM WEDNESDAY  FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• 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 much warmer, actually hot, and hazy today, mostly clear tonight,
• Sunny, still hot, Wednesday, clear at night,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, then partly cloudy Thursday night.
• highs 100-82 lows 58-55.
• Partly cloudy Friday AM, mostly sunny and a bit cooler in the afternoon, mostly clear Friday night,
• Then sunny and a bit warmer Saturday, Sunday and Monday, clear each night.
• highs 80-87 lows 54-56. (seasonal averages high 83 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny and hot with haze and areas of smoke today and Wednesday, clear with areas of haze and smoke tonight, mostly clear with areas of evening haze and mostly clear with haze and smoke late Wednesday night.
• highs 102-86 lows 60-58.
• Mostly sunny, hazy and cooler Thursday and Friday, mostly clear and hazy Thursday night, hazy and clear Friday night,
• Sunny, hazy and a bit warmer Saturday, clear and hazy at night,
• Mostly sunny and hazy Sunday and Monday, mostly clear and hazy Sunday night.
• highs 83-92 cooling to 89 Monday lows 54-58. (seasonal averages high 85 low 55)

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

• Sunny with inland haze and areas of smoke today, inland haze and areas of smoke this evening, clear tonight,
• Sunny and a bit cooler Wednesday, mostly clear in the evening, mostly cloudy late Wednesday night and Thursday AM with patchy AM fog, sunny and a bit cooler in the afternoon, then mostly clear at night.
• highs 70-66 lows 56-58 cooling back to 56 Thursday night.
• Mostly sunny Friday, Saturday, Sunday and Monday, mostly clear each night.
• highs near 67 lows near 56. (seasonal averages high 66 low 53).

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Forecast for the Cascades in Lane County:

• Mostly sunny and hazy today, mostly clear and hazy tonight,
• Sunny and a bit cooler Wednesday, clear and cooler Wednesday night,
• Mostly sunny and cooler Thursday, then clear at night.
• free air freezing level 16,000 ft. today through Thursday night.
• highs 85-72 lows 53-44.
• Sunny and a bit warmer Friday, Saturday, Sunday and Monday, clear each night.
• free air freezing level 15,000 ft. Friday, 14,000 ft. Friday night, 15,000 ft. Saturday through Sunday night, then 14,000 ft. Monday.
• highs 68-75 lows 44-49.

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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 new weekly weather quiz question. What is a “Phenomenological Model?” 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.

________________

Not much relief from the drought, but with northwesterly winds at least we cleared out some smoke.  A short-lived upper level high pressure ridge (Shaded “Arch” shape with blue arrows) will really heat us up for a couple of days. A trough of low pressure (Shaded “U” shape with blue arrows on previous graphic) will cool us back down rather quickly.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 40 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 39 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 FROM 11 AM TUESDAY UNTIL 6 PM WEDNESDAY FOR UNSTABLE CONDITIONS COMBINED WITH CRITICALLY DRY FUELS FOR THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE, THE WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS, THE CENTRAL OREGON CASCADE FOOTHILLS, THE MT. HOOD NATIONAL FOREST WEST OF CASCADE CREST, AND THE WILLAMETTE NATIONAL FOREST.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 9 PM TUESDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON AND THE LOWER COLUMBIA.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 6 PM WEDNESDAY  FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• 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 clear with patchy smoke tonight,
• Mostly sunny and much warmer, actually hot, and hazy Tuesday, mostly clear Tuesday night,
• Sunny, still hot, Wednesday, clear at night,
• Partly cloudy Thursday AM, mostly sunny and cooler in the afternoon, then partly cloudy Thursday night.
• lows 58-55 highs 100-82.
• Partly cloudy Friday AM, mostly sunny and a bit cooler in the afternoon, mostly clear Friday night,
• Then sunny and a bit warmer Saturday, Sunday and Monday, clear each night.
• highs 80-87 lows 54-56. (seasonal averages high 83 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Clear with haze and areas of smoke tonight,
• Sunny and hot with haze and areas of smoke Tuesday and Wednesday, clear with areas of smoke Tuesday night, mostly clear with areas of evening haze  and mostly clear late Wednesday night.
• lows near 60 highs 102-86.
• Mostly sunny, hazy and cooler Thursday and Friday, mostly clear and hazy Thursday night, hazy and clear Friday night,
• Sunny, hazy and a bit warmer Saturday, clear and hazy at night,
• Mostly sunny and hazy Sunday and Monday, mostly clear and hazy Sunday night.
• highs 83-92 cooling to 89 Monday lows 54-58. (seasonal averages high 85 low 56)

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

• Clear tonight with inland haze and areas of smoke,
• Sunny with inland haze and areas of smoke Tuesday, inland haze and areas of smoke in the evening, clear Tuesday night,
• Sunny and a bit cooler Wednesday, mostly clear in the evening, mostly cloudy late Wednesday night and Thursday AM with patchy AM fog, sunny and a bit cooler in the afternoon, then mostly clear at night.
• lows 54-58 highs 70-66.
• Mostly cloudy with patchy AM fog, sunny and a bit cooler Thursday afternoon, mostly clear Thursday night,
• Mostly sunny Friday, Saturday, Sunday and Monday, mostly clear each night.
• highs near 67 lows near 56. (seasonal averages high 65 low 53).

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny and hazy Tuesday, mostly clear and hazy at night,
• Sunny and a bit cooler Wednesday, clear and cooler Wednesday night,
• Mostly sunny and cooler Thursday, then clear at night.
• free air freezing level 16,000 ft. tonight through Thursday night,
• lows 50-53 cooling to 44 Thursday night highs 85-72.
• Sunny and a bit warmer Friday, Saturday, Sunday and Monday, clear each night.
• free air freezing level 15,000 ft. Friday, 14,000 ft. Friday night, 15,000 ft. Saturday through Sunday night, then 14,000 ft. Monday.
• highs 68-75 lows 44-49.

_______________

**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 a “Phenomenological Model?” 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.

________________

Not much relief from the drought, but with northwesterly winds at least we cleared out some smoke.  A short-lived upper level high pressure ridge (Shaded “Arch” shape with blue arrows) will really heat us up for a couple of days. A trough of low pressure (Shaded “U” shape with blue arrows on previous graphic) will cool us back down rather quickly.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 34 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 37 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 63 in the Moderate category measuring Particulate Matter.

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

________________

Advisories:

• A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 9 PM TUESDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON AND THE LOWER COLUMBIA.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 6 PM TUESDAY THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• 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 and warmer with patchy smoke today, clear with patchy smoke tonight,
• Sunny and warmer, hot, with patchy smoke Tuesday, patchy evening smoke, clear late Tuesday night,
• Sunny, still hot, Wednesday, then clear Wednesday night.
• highs 92-100 cooling to 96 Wednesday lows 56-59 cooling to 57 Wednesday night.
• Sunny and a bit cooler Thursday, partly cloudy Thursday night and Friday AM, mostly sunny and still cooler in the afternoon, mostly clear Friday night,
• Sunny and a bit warmer Saturday and Sunday, clear Saturday night.
• highs 82-80 warming to 86 Saturday and Sunday lows 55-52 warming to 56 Saturday night. (seasonal averages high 83 low 51)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny with haze and areas of smoke today and Tuesday, clear with haze and areas of smoke each night,
• Mostly sunny and a bit cooler with areas of smoke Wednesday, mostly clear with areas of smoke at night.
• highs 93-100 cooling to 97 Wednesday lows near 59.
• Mostly sunny, hazy and cooler Thursday and Friday, mostly clear Thursday night, clear Friday night,
• Sunny, hazy and a bit warmer Saturday, mostly sunny & hazy Sunday, mostly clear and hazy Saturday night.
• highs 87-85 warming to 90 Saturday and Sunday lows near 57. (seasonal averages high 85 low 56)

________________

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

• Sunny today, Tuesday and Wednesday, mostly clear tonight and Tuesday night, partly cloudy Wednesday night.
• highs near 70 lows 54-56.
• Partly cloudy and a bit cooler Thursday, mostly clear Thursday night,
• Mostly sunny Friday and Saturday, mostly clear both nights,
• Then sunny Sunday.
• highs 65-68 lows near 56. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Sunny and warmer with patchy smoke today, Tuesday and sunny and a bit cooler Wednesday, clear with patchy smoke each night.
• free air freezing level 16,000 ft. today through Wednesday night,
• highs 80-85 cooling back to near 80 Wednesday lows 49-52 cooling back to 49 Wednesday night.
• Sunny and cooler Thursday and Friday, sunny and warmer Saturday and Sunday, clear each night.
• free air freezing level 15,000 ft. Thursday and Thursday night, 14,000 ft. Friday, then 15,000 ft. Friday night through Sunday.
• highs 82-70 warming to 76 Sunday lows 45-47.

_______________

**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.

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