Here is my new weekly weather quiz question. What is the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving away as short-lived high pressure moves in for a couple of days of warmer weather. A frontal system will move in Sunday cooling us down and possibly bringing some rain.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 70 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 20 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Clear tonight,
• Mostly sunny and just a bit warmer Friday, partly cloudy at night,
  A mix of clouds and sun and bit a cooler Saturday, mostly cloudy with a good (50%) chance of evening rain, a slight (20%) chance of rain late Saturday night,
• A mix of clouds and sun Sunday with a (30%) chance of AM showers, a slight (20%) chance of afternoon showers, then mostly cloudy with a (30%) chance of showers Sunday night.
• lows 53-58 highs 85-78.
• A mix of clouds and sun with a (30%) chance of showers Monday, becoming mostly cloudy with a (30%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Monday night,
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy and a bit warmer late Tuesday night through Thursday.
• highs 76-84 lows 56-54. (seasonal averages high 84 low 52)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear with patchy smoke tonight,
• Sunny and a bit warmer with patchy smoke Friday, mostly clear in the evening, becoming mostly cloudy with patchy smoke late Friday night and Saturday AM, partly cloudy and a bit cooler in the afternoon, partly cloudy with patchy smoke and a slight (20%) chance of showers in the evening, mostly cloudy with patchy smoke and a slight (20%) chance of showers late Saturday night,
• Mostly cloudy Sunday with patchy smoke, a slight (20%) chance of showers Sunday AM, just mostly cloudy with patchy smoke in the afternoon, more patchy smoke with a slight (20%) chance of showers  Sunday night.
• lows 57-60 highs 88-85.
• Mostly cloudy with patchy smoke and a slight (20%) chance of showers and thunderstorms Monday AM, patchy smoke a slight (20%) chance of thunderstorms in the afternoon, a slight (20%) chance of showers with more patchy smoke Monday night,
• Partly cloudy with patchy smoke and a slight (20%) chance of AM showers and thunderstorms, a slight (20%) chance of thunderstorms in the afternoon and at night Tuesday through Wednesday,
• Mostly cloudy with patchy smoke in the AM, partly cloudy and warmer with continuing patchy smoke and a slight (20%) chance of thunderstorms Thursday afternoon.
• highs 82-86 lows near 60. (seasonal averages high 86 low 56)

________________

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

• Mostly clear this evening, partly cloudy late tonight and Friday AM, sunny in the afternoon, partly cloudy in the evening with a slight (20%) chance of evening coastal thunderstorms, mostly cloudy late Friday night,
• Mostly cloudy with a slight (20%) chance of coastal showers Saturday AM, just mostly cloudy in the afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers at night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Sunday and Sunday night.
• lows 56-58 highs near 67.
• Mostly cloudy with a slight (20%) chance of showers Monday and in the evening, then just partly cloudy late Monday night through Thursday.
• highs near 66 lows near 56. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny Friday, mostly clear at night,
• Partly cloudy and a bit cooler Saturday, a slight (20%) chance of showers in the evening, becoming mostly cloudy with a (40%) chance of rain late Saturday night,
• A mix of clouds and sun and a bit cooler Sunday with a (40%) chance of AM showers, a slight (20%) chance of showers and a bit warmer in the afternoon, a (30%) chance of showers Sunday night.
• free air freezing level 14,000 ft. tonight, 13,000 ft. Friday through Saturday, then snow level above 8,000 ft. Saturday night through Sunday night.
• lows 44-48 highs 74-66.
• A mix of clouds and sun with a (30%) chance of showers Monday AM, a (30%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon, mostly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms in the evening, partly cloudy with a slight (20%) chance of showers late Monday night,
• A mix of clouds and sun Tuesday with a (30%) chance of AM showers, a slight (20%) chance of showers and thunderstorms in the afternoon, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, a slight (20%) chance of showers late Tuesday night and Wednesday AM, a bit warmer with a slight (20%) chance of afternoon and evening showers and thunderstorms, a slight (20%) chance of showers late Wednesday night,
• Partly cloudy with a slight chance of AM showers, then just a bit warmer with a slight (20%) chance of showers and thunderstorms Thursday afternoon.
• snow level above 8,000 ft. Monday through Thursday.
• highs 66-69 lows 48-45.

_______________

**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 the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving away as short-lived high pressure moves in for a couple of days of warmer weather. A frontal system will move in Sunday cooling us down and possibly bringing some rain.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 70 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 20 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly sunny and warmer today and Friday, mostly clear both nights,
• A mix of clouds and sun and cooler Saturday with a slight (20%) chance of afternoon rain, partly cloudy with a slight (20%) chance of rain in the evening, mostly cloudy with a slight (20%) chance of rain late Saturday night.
• highs 85-80 lows 54-57.
• A mix of clouds and sun Sunday with a slight (20%) chance of showers, becoming mostly cloudy with a slight (20%) chance of showers at night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance of evening showers, then partly cloudy late Monday night through Wednesday.
• highs 79-82 lows 57-53. (seasonal averages high 84 low 52)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny with patchy smoke and a bit warmer today, mostly clear with patchy smoke tonight,
• Mostly sunny and a bit warmer with patchy smoke Friday, partly cloudy with patchy smoke Friday night and Saturday (a bit cooler), partly cloudy with patchy smoke in the evening, then partly cloudy with patchy smoke and a slight (20%) chance of rain late Saturday night.
• highs 86-89 lows 58-62 cooling back to 58 Saturday night.
• Mostly cloudy Sunday with patchy smoke, patchy smoke with a slight (20%) chance of showers Sunday night through Monday evening, just partly cloudy with more patchy smoke late Monday night,
• Then partly cloudy with patchy smoke and a slight (20%) chance of thunderstorms Tuesday through Wednesday.
• highs 84-82 warming back to 84 Tuesday lows near 60. (seasonal averages high 86 low 56)

________________

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

• Partly cloudy this AM, sunny this afternoon, mostly clear tonight,
• Partly cloudy Friday and in the evening, mostly cloudy late Friday night, mostly cloudy with a slight (20%) chance of coastal rain Saturday AM, just mostly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of rain at night.
• highs near 67 lows 56-58.
• Mostly cloudy with a slight (20%) chance of showers Sunday through Monday evening, then just partly cloudy late Monday night through Wednesday.
• highs near 67-65 lows near 56. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly sunny today and Friday, mostly clear both nights,
• Partly cloudy and a bit cooler Saturday and in the evening, then mostly cloudy Saturday night.
• free air freezing level 14,000 ft. today and tonight, 13,000 ft. Friday through Saturday, then 12,000 ft. Saturday night.
• highs 75-67 lows 44-47.
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, mostly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, partly cloudy with a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday AM, mostly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, partly cloudy with a slight (20%) chance of showers late Monday night through Tuesday evening, just partly cloudy Tuesday night,
• Then partly cloudy with a slight (20%) chance of showers Wednesday afternoon.
• snow level above 8,000 ft. Sunday through Wednesday.
• highs 66-69 lows 48-45.

_______________

**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 the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving down from the Canadian coast to continue the cooler weather. A frontal system will move in Sunday cooling us down and possibly bringing some rain.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 31 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 32 in the Good category measuring Ozone.

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

________________

Advisories:

• A RED FLAG WARNING REMAINS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITIES FROM NOON TODAY UNTIL 9 PM THIS EVENING FOR THE LOWER COLUMBIA BASIN OF OREGON.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly clear tonight,
• Mostly sunny and warmer Thursday and Friday (a bit cooler), mostly clear Thursday night, partly cloudy Friday night,
• A mix of clouds and sun and cooler Saturday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night.
• lows 50-57 highs 86-79.
• A mix of clouds and sun Sunday with a slight (20%) chance of showers, becoming mostly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance of evening showers, then partly cloudy late Monday night through Wednesday.
• highs 79-82 lows 57-53. (seasonal averages high 84 low 52)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear with patchy smoke tonight,
• Sunny with patchy smoke and a bit warmer Thursday, mostly clear with patchy smoke Thursday night,
• Mostly sunny and a bit warmer with patchy smoke Friday, partly cloudy with patchy smoke Friday night and Saturday (a bit cooler), then mostly cloudy with patchy smoke Saturday night.
• lows 56-59 highs 86-89 .
• Mostly cloudy Sunday with patchy smoke, a slight (20%) chance of showers with patchy smoke Sunday night through Monday evening, just partly cloudy with more patchy smoke Monday night,
• Partly cloudy with patchy smoke and a slight (20%) chance of thunderstorms Tuesday through Wednesday.
• highs 84-82 warming back to 84 Tuesday lows near 60. (seasonal averages high 86 low 56)

________________

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

• Mostly clear this evening, partly cloudy late tonight and Thursday AM, sunny in the afternoon, mostly clear at night,
• Partly cloudy Friday AM, sunny in the afternoon, partly cloudy in the evening, then mostly cloudy late Friday night through Saturday night.
• lows 54-58 highs 65-67 cooling back to 65 Friday.
• Mostly cloudy Sunday, mostly cloudy with a slight (20%) chance of showers late Sunday night through Monday evening, then just partly cloudy late Monday night through Wednesday.
• highs near 66 lows near 57. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny Thursday, mostly clear at night,
• Mostly sunny in the AM, then partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon, just partly cloudy Friday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday and in the evening, then mostly cloudy with a slight (20%) chance of showers late Saturday night.
• free air freezing level 14,000 ft. tonight through Thursday night, snow level above 8,000 ft. Friday, free air freezing level 13,000 ft. Friday night, then snow level above 8,000 ft. Saturday and Saturday night.
• lows 46-50 cooling to 47 Saturday night highs 76-65.
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, a slight (20%) chance of showers and thunderstorms in the evening, partly cloudy with a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday AM, mostly cloudy with a slight (20%) chance of showers in the evening, partly cloudy with a slight (20%) chance of showers late Monday night through Tuesday evening, just partly cloudy Tuesday night,
• Then partly cloudy with a slight (20%) chance of showers Wednesday.
• snow level above 8,000 ft. Sunday through Wednesday.
• highs 66-69 lows 48-45.

_______________

**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 the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving down from the Canadian coast to continue the cooler weather. A frontal system will move in Sunday cooling us down and possibly bringing some rain.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 17 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A RED FLAG WARNING REMAINS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITIES FROM NOON TODAY UNTIL 9 PM THIS EVENING FOR THE LOWER COLUMBIA BASIN OF OREGON.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly sunny today, mostly sunny and warmer Thursday and Friday, clear to partly cloudy each night,
• highs 83-86 lows 50-56.
• A mix of clouds and sun and cooler Saturday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers, mostly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday afternoon, mostly cloudy with a slight (20%) chance of evening showers, then partly cloudy late Monday night and Tuesday.
• highs near 80 lows 58-55. (seasonal averages high 84 low 52)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this AM, sunny and hazy with patchy smoke and cooler this afternoon, mostly clear with haze and patchy smoke tonight,
• Sunny and hazy with patchy smoke and a bit warmer Thursday, partly cloudy with haze and patchy smoke in the evening, mostly clear with patchy smoke Thursday night,
• Mostly sunny and a bit warmer with patchy smoke Friday, then mostly clear with patchy smoke at night.
• highs 86-89 lows 56-59.
• Partly cloudy with patchy smoke and cooler Saturday and in the evening, mostly cloudy with patchy smoke late Saturday night,
• Mostly cloudy Sunday with patchy smoke and a slight (20%) chance of thunderstorms Sunday afternoon and Sunday night,
• Mostly cloudy with patchy smoke and a slight (20%) chance of showers Monday afternoon and evening, then just partly cloudy Monday night and Tuesday.
• highs 84-82 warming back to 84 Tuesday lows near 60. (seasonal averages high 86 low 57)

________________

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

• Mostly cloudy this AM, sunny this afternoon, mostly clear this evening, partly cloudy late tonight,
• Partly cloudy in the AM, sunny Thursday afternoon, partly cloudy at night,
• Partly cloudy Friday and in the evening, then mostly cloudy Friday night.
• highs 65-67 cooling back to 65 Friday lows 54-58.
• Mostly cloudy Saturday through Sunday night,
• Mostly cloudy with a slight (20%) chance of showers Monday afternoon and evening, then just partly cloudy late Monday night and Tuesday.
• highs near 66 lows near 57. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly sunny today and Thursday, mostly clear both nights,
• Mostly sunny in the AM, then partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon, then just partly cloudy Friday night.
• free air freezing level 12,000 ft. today, 13,000 ft. tonight through Thursday night, snow level above 8,000 ft. Friday, then free air freezing level 13,000 ft. Friday night.
• highs 72-76 cooling back to 72 Friday lows 46-49.
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday and in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun and a bit warmer Sunday with a slight (20%) chance of AM showers, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers in the evening, partly cloudy with a slight (20%) chance of showers late at night and Tuesday AM, then just partly cloudy Tuesday afternoon.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 63-66 lows 48-46.

_______________

**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 “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving down from the Canadian coast to continue the cooler weather. A frontal system will move in Sunday cooling us down and possibly bringing some rain.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 32 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

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

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TODAY FOR THE EAST SLOPES OF THE NORTH OREGON CASCADES, THE LOWER COLUMBIA BASIN OF OREGON AND THE EASTERN COLUMBIA RIVER GORGE.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly clear and cooler tonight,
• Mostly sunny Wednesday, mostly sunny and warmer Thursday and Friday, clear to partly cloudy each night,
• lows 50-56 highs 83-87.
• Partly cloudy and cooler Saturday and in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers, mostly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday afternoon, mostly cloudy with a slight (20%) chance of evening showers, then partly cloudy late Monday night and Tuesday.
• highs near 80 lows 58-55. (seasonal averages high 84 low 52)

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly clear with patchy smoke tonight,
• Partly cloudy in the AM, sunny and hazy with patchy smoke and cooler Wednesday afternoon, mostly clear with haze and patchy smoke at night,
• Sunny and hazy with patchy smoke and a bit warmer Thursday, mostly clear with haze and patchy smoke in the evening, mostly clear with patchy smoke Thursday night,
• Mostly sunny and a bit warmer with patchy smoke Friday, then mostly clear with patchy smoke at night.
• lows near 58 highs 86-89.
• Partly cloudy with patchy smoke Saturday and in the evening, mostly cloudy with patchy smoke late Saturday night,
• Mostly cloudy Sunday with patchy smoke and a slight (20%) chance of thunderstorms Sunday afternoon and Sunday night,
• Mostly cloudy with a slight (20%) chance of showers Monday afternoon and evening, then just partly cloudy Monday night and Tuesday.
• highs 84-82 warming back to 84 Tuesday lows near 60. (seasonal averages high 86 low 57)

________________

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

• Partly cloudy with patchy inland smoke this evening, mostly cloudy with patchy inland smoke late tonight and Wednesday AM, sunny in the afternoon, mostly clear in the evening, partly cloudy late Wednesday night,
• Partly cloudy in the AM, sunny Thursday afternoon, mostly clear at night,
• Sunny Friday, mostly clear in the evening, then mostly cloudy Friday night.
• lows 56-58 highs 65-67 cooling back to 65 Friday.
• Mostly cloudy Saturday through Sunday night,
• Mostly cloudy with a slight (20%) chance of showers Monday afternoon, and evening, then just partly cloudy late Monday night and Tuesday.
• highs near 66 lows near 57. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly clear and cooler tonight,
• Mostly sunny Wednesday and Thursday, mostly clear both nights,
• Mostly sunny in the AM, partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon and Friday night.
• free air freezing level 13,000 ft. tonight, 12,000 ft. Wednesday, 13,000 ft. Wednesday night through Thursday night, snow level above 8,000 ft Friday and Friday night.
• lows 46-49 highs 72-76 cooling back to 72 Friday.
• Partly cloudy with a slight (20%) chance of showers and thunderstorms Saturday and in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers Sunday, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers in the evening, partly cloudy with a slight (20%) chance of showers late at night and Tuesday AM, then just partly cloudy Tuesday afternoon.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 63-66 warming to 70 Monday 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 new weekly weather quiz question. What is the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving down from the Canadian coast to continue the cooler weather.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 23 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 UNTIL 9 PM TODAY FOR THE EAST SLOPES OF THE NORTH OREGON CASCADES AND THE LOWER COLUMBIA BASIN OF OREGON.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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 this AM, mostly sunny this afternoon, mostly clear and cooler tonight,
• Mostly sunny Wednesday and Thursday, partly cloudy Wednesday night, mostly clear Thursday night.
• highs 85-83 warming to 86 Thursday lows 52-50 warming to 54 Thursday night.
• Mostly sunny and a bit warmer Friday, partly cloudy at night,
• Partly cloudy and cooler Saturday with a slight (20%) chance of afternoon and evening showers, mostly cloudy late Saturday night,
• Then a mix of clouds and sun Sunday, mostly cloudy at night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Monday afternoon.
• highs 87-82 lows near 56. (seasonal averages high 84 low 52)
  ____
  Eugene/Springfield Pollen Count:
  Trees: Low- 4

Grass: Moderate- 5*

Reading as of: 7/25/15

*Now the grass pollen season is officially over.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Sunny with areas of smoke this AM, partly cloudy this afternoon, mostly clear tonight,
• Sunny and hazy with patchy smoke and cooler Wednesday afternoon, mostly clear with haze and patchy smoke at night,
• Sunny and hazy with patchy smoke and a bit warmer Thursday, then mostly clear with haze and patchy smoke in the evening, then just partly cloudy Thursday night.
• highs 88-85 warming to 90 Thursday lows near 58.
• Sunny and a bit warmer Friday, partly cloudy Friday night through Saturday evening, mostly cloudy late Saturday night,
• Mostly cloudy Sunday with a slight (20%) chance of thunderstorms Sunday afternoon and Sunday night,
• Then mostly cloudy with a slight (20%) chance of showers Monday afternoon.
• highs 89-86 lows near 60. (seasonal averages high 86 low 57)

________________

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

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

________________

Forecast for the Cascades in Lane County:

• Mostly sunny this AM, partly cloudy and cooler this afternoon, mostly clear and cooler tonight,
• Mostly sunny Wednesday and Thursday, mostly clear both nights.
• free air freezing level 13,000 ft. today  tonight, 12,000 ft. Wednesday, 13,000 ft. Wednesday night through Thursday night.
• highs 76-72 warming back to 76 Thursday lows 46-49.
• Mostly sunny in the AM, partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon through Saturday evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday AM, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, a slight (20%) chance of showers late Sunday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Monday.
• snow level above 8,000 ft. Friday through Monday.
• highs 72-66 warming to 70 Monday 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 new weekly weather quiz question. What is the “dew point?”  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 pressure trough (Shaded “U” shape with blue arrows) is moving down from the Canadian coast to continue the cooler weather.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 37 in the Good category measuring Ozone.

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

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

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER STATION AND THE CENTRAL MOUNTAINS OF OREGON.
• A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TUESDAY FOR THE EAST SLOPES OF THE OF THE NORTH OREGON CASCADES AND THE LOWER COLUMBIA BASIN OF OREGON.
• A RED FLAG WARNING IS IN EFFECT UNTIL  11 PM TONIGHT THE UMPQUA NATIONAL FOREST,  THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN,  THE FREMONT-WINEMA NATIONAL FOREST, THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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 and Tuesday AM, mostly sunny in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday and Thursday, partly cloudy Wednesday night, mostly clear Thursday night.
• lows 56-50 warming to 54 Thursday night highs 86-84.
• Mostly sunny and a bit warmer Friday, partly cloudy at night,
• Partly cloudy and cooler Saturday with a slight (20%) chance of afternoon and evening showers, mostly cloudy late Saturday night,
• Then a mix of clouds and sun Sunday, mostly cloudy at night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Monday afternoon.
• highs 87-82 cooling to near 80 Sunday lows near 56. (seasonal averages high 84 low 52)
  ____
  Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5*

Reading as of: 7/25/15

*Now the grass pollen season is officially over.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy with isolated thunderstorms this evening, mostly clear with areas of smoke late tonight,
• Sunny with areas of smoke in the AM, partly cloudy Tuesday afternoon, mostly clear Tuesday night,
• Sunny and cooler Wednesday, mostly clear at night,
• Mostly sunny and a bit warmer Thursday, then mostly clear Thursday night.
• lows 60-57 highs 88-86 warming to 92 Thursday.
• Mostly sunny and a bit warmer Friday, partly cloudy Friday night through Saturday evening, mostly cloudy late Saturday night,
• Mostly cloudy Sunday with a slight (20%) chance of thunderstorms Sunday afternoon through Monday afternoon.
• highs 92-86 lows near 60. (seasonal averages high 86 low 57)

________________

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

• Partly cloudy this evening, mostly cloudy with patchy coastal fog late tonight and Tuesday AM, partly cloudy at the shore in the afternoon while sunny inland in the AM and partly cloudy in the afternoon, mostly clear in the evening, mostly cloudy late Tuesday night,
• Mostly cloudy Wednesday AM, sunny in the afternoon, then mostly clear Wednesday night,
• Mostly sunny Thursday, then mostly clear at night.
• lows near 56 highs 65-69.
• Partly cloudy Friday and Friday night,
• Mostly cloudy Saturday through Sunday night,
• Then mostly cloudy with a slight (20%) chance of showers Monday afternoon.
• highs 68-65 lows near 56. (seasonal averages high 65 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 Tuesday AM, partly cloudy and cooler in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday and Thursday, partly cloudy Wednesday night, mostly clear .
• snow level above 8,000 ft. tonight, free air freezing level 13,000 ft. Tuesday through Wednesday night, then 14,000 ft. Thursday and Thursday night.
• lows 49-46 warming back to 49 Thursday night highs 74-70 warming back to 74 Thursday.
• Mostly sunny in the AM, partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon through Saturday evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday AM, a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, a slight (20%) chance of showers late Sunday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Monday.
• snow level above 8,000 ft. Friday through Monday.
• highs 72-66 warming to 70 Monday 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 new weekly weather quiz question. What is the “dew point?”  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 high pressure ridge that gave us record high temperatures in the 100s will slowly move away allowing an upper low pressure trough to bring an increased southerly airflow. That means more clouds and the slight chance of showers and thunderstorms with a cooling trend to more reasonable temperatures.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 30 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL  11 PM TODAY THE UMPQUA NATIONAL FOREST,  THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL 11 PM TODAY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE SOUTH CENTRAL OREGON COAST, THE UMPQUA BASIN, THE WESTERN ROGUE RIVER INCLUDING THE ILLINOIS VALLEY AND THE EASTERN ROGUE RIVER VALLEY.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly cloudy with a slight (20%) chance of showers and thunderstorms this AM, partly cloudy and warmer this afternoon, partly cloudy tonight and Tuesday AM, mostly sunny in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday, then partly cloudy Wednesday night.
• highs 88-83 lows 56-53.
• Mostly sunny Thursday, partly cloudy Thursday night through Saturday evening, mostly cloudy late Saturday night,
• Then a mix of clouds and sun Sunday.
• highs 83-85 cooling to near 80 Sunday lows near 55. (seasonal averages high 84 low 52)
  ____
  Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5*

Reading as of: 7/25/15

*Now the grass pollen season is officially over.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with areas of smoke and a slight (20%) chance of isolated thunderstorms this afternoon and evening (under 0.10 in. of rain possible, more in storms), mostly clear with areas of smoke late tonight,
• Sunny with areas of sun in the AM, partly cloudy Tuesday afternoon, mostly clear Tuesday night,
• Sunny and cooler Wednesday, then mostly clear Wednesday night.
• highs 90-86 lows 59-57.
• Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night through Saturday night,
• Then mostly cloudy Sunday with a slight (20%) chance of thunderstorms in the afternoon.
• highs 92-86 lows 58-60. (seasonal averages high 86 low 57)

________________

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

• Mostly cloudy this AM with patchy coastal fog, partly cloudy with patchy coastal fog tonight,
• Partly cloudy with patchy coastal AM fog, sunny Tuesday afternoon, mostly clear at night,
• Then partly cloudy Wednesday AM, sunny in the afternoon, then mostly clear Wednesday night.
• highs near 66 lows 57-55.
• Partly cloudy Thursday through Saturday, then mostly cloudy Saturday night and Sunday.
• highs 67-70 cooling to 65 Sunday lows near 56. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with a slight (20%) chance of AM showers and thunderstorms, partly cloudy with a slight (20%) chance of showers and thunderstorms this afternoon and evening, just partly cloudy late tonight,
• Mostly sunny Tuesday AM, partly cloudy and cooler in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday, then partly cloudy Wednesday night.
• snow level above 8,000 ft. today and tonight, free air freezing level 13,000 ft. Tuesday through Wednesday night.
• highs 77-72 lows 50-46.
• Mostly sunny Thursday, partly cloudy Thursday night,
• Partly cloudy Friday with a slight (20%) chance of showers and thunderstorms in the afternoon through Saturday evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday AM, then a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon.
• free air freezing level 14,000 ft. Thursday, 13,000 ft. Thursday night, then snow level above 8,000 ft. Friday through Sunday.
• highs 72-66 warming to 68 Sunday lows near 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 weekly weather quiz question for the last time. What is “Juvenile Water?” Here is the correct answer. Juvenile Water is in hydrologic terms, water formed chemically within the earth and brought to the surface in intrusive rock. 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.

________________

An upper level high pressure ridge that gave us record high temperatures in the 100s will slowly move away allowing an upper low pressure trough to bring an increased southerly airflow. That means more clouds and the slight chance of showers and thunderstorms with a cooling trend to more reasonable temperatures.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 30 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 5 AM MONDAY THE UMPQUA NATIONAL FOREST AND THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL  11 PM MONDAY THE UMPQUA NATIONAL FOREST,  THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A RED FLAG WARNING IS IN EFFECT UNTIL 5 AM MONDAY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL 11 PM MONDAY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE SOUTH CENTRAL OREGON COAST, THE UMPQUA BASIN, THE WESTERN ROGUE RIVER INCLUDING THE ILLINOIS VALLEY AND THE EASTERN ROGUE RIVER VALLEY.
• A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE LOWER COLUMBIA BASIN OF OREGON,
• A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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:

• Mostly cloudy with a good (50%) chance of showers and thunderstorms this evening, a slight (20%) chance of showers and thunderstorms late tonight (under 0.10 in. of rain possible, more in storms) and Monday AM, partly cloudy and warmer in the afternoon, partly cloudy Monday night,
• Partly cloudy Tuesday AM, mostly sunny in the afternoon, then partly cloudy Tuesday night through Wednesday night.
• lows 63-53 highs 88-83.
• Partly cloudy Thursday through Saturday evening, mostly cloudy late Saturday night,
• Then mostly cloudy Sunday with a slight (20%) chance of showers in the afternoon.
• highs 83-85 cooling to near 80 Sunday lows near 55. (seasonal averages high 84 low 52)
  ____
  Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5*

Reading as of: 7/25/15

*Now the grass pollen season is officially over.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with areas of smoke and a (30%) chance of scattered thunderstorms this evening, patchy smoke with a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible, more in storms),
• Mostly cloudy with patchy smoke and a slight (20%) chance of thunderstorms Monday afternoon (under 0.10 in. of rain possible, more in storms), partly cloudy with areas of smoke in the evening, mostly clear at night,
• Sunny in the AM, partly cloudy Tuesday afternoon, mostly clear Tuesday night,
• Partly cloudy  Wednesday AM, sunny and cooler in the afternoon, then mostly clear Wednesday night.
• lows 62-57 highs 90-86.
• Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night through Friday night,
• Partly cloudy and a bit cooler Saturday and in the evening, mostly cloudy Saturday night,
• Then mostly cloudy Sunday with a slight (20%) chance of thunderstorms in the afternoon.
• highs 92-86 lows 58-60. (seasonal averages high 86 low 57)

________________

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

• Mostly cloudy with a slight (20%) chance of isolated thunderstorms this evening, a slight (20%) chance of showers late tonight,
• Mostly cloudy Monday AM with patchy coastal fog, partly cloudy with patchy coastal fog Monday night,
• Partly cloudy with patchy coastal AM fog, sunny Tuesday afternoon, mostly clear at night,
• Then partly cloudy Wednesday and Wednesday night.
• lows 57-55 highs near 66.
• Partly cloudy Thursday through Saturday, then mostly cloudy Saturday night and Sunday.
• highs 67-70 cooling to 65 Sunday lows near 56. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with patchy smoke and a good (50%) chance of showers and thunderstorms this evening, a good (50%) chance of showers and a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible, more in storms,
• Mostly cloudy with a slight (20%) chance of morning showers and thunderstorms, partly cloudy with a slight (20%) chance of showers and thunderstorms Monday afternoon and evening, just partly cloudy late Monday night,
• Mostly sunny Tuesday and cooler with a slight (20%) chance of showers and thunderstorms in the afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms in the evening, then just partly cloudy Tuesday night through Wednesday night.
• snow level above 8,000 ft. tonight through Tuesday night, free air freezing level 11,000 ft. Wednesday, then 12,000 ft. Wednesday night.
• lows 53-46 highs 77-72.
• Partly cloudy Thursday and Thursday night,
• Partly cloudy Friday with a slight (20%) chance of showers and thunderstorms in the afternoon through Saturday evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday AM, then a slight (20%) chance of showers and thunderstorms and a bit warmer in the afternoon.
• free air freezing level 13,000 ft. Thursday and Thursday night, then snow level above 8,000 ft. Friday through Sunday.
• highs 72-68 lows near 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 weekly weather quiz question for the last time. What is “Juvenile Water?” Here is the correct answer. Juvenile Water is in hydrologic terms, water formed chemically within the earth and brought to the surface in intrusive rock. 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.

________________

An upper level high pressure ridge that gave us record high temperatures in the 100s will slowly move away allowing an upper low pressure trough to bring an increased southerly airflow. That will mean some more clouds and the slight chance of thunderstorms with a cooling trend to more reasonable temperatures.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 30 in the Good category measuring Particulate Matter.

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

________________

Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TODAY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE LOWER COLUMBIA RIVER BASIN.
• THE SOUTH CENTRAL OREGON COAST, THE WESTERN ROGUE RIVER INCLUDING THE ILLINOIS VALLEY, THE UMPQUA BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
• A RED FLAG WARNING IS IN EFFECT UNTIL 10 PM TODAY FOR THE CENTRAL MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS AND THE STRAWBERRY MOUNTAINS.
• A RED FLAG WARNING IS IN EFFECT FROM 11 AM TODAY UNTIL 5 AM MONDAY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TODAY FOR THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE AND THE UPPER HOOD RIVER VALLEY.
• A HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. 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 and cooler with a slight (20%) chance of showers and thunderstorms this afternoon and tonight,
• Partly cloudy Monday AM, mostly sunny and a bit cooler in the afternoon and Tuesday, mostly clear Monday night, partly cloudy Tuesday night.
• highs 94-87 lows 58-55.
• Partly cloudy Wednesday through Friday (a bit warmer Friday), mostly clear Friday night,
• Then mostly sunny and a bit warmer Saturday.
• highs 83-88 lows near 55. (seasonal averages high 84 low 52)
  ____

Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5*

Reading as of: 7/25/15

*Now the grass pollen season is officially over.

_________________

Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy with patchy smoke and a slight (20%) chance of isolated AM thunderstorms, partly cloudy and cooler with areas of smoke and a slight (20%) chance of isolated thunderstorms this afternoon, areas of evening fog, mostly cloudy with a slight (20%) chance of isolated thunderstorms late tonight,
• Partly cloudy with a slight (20%) chance of thunderstorms Monday  afternoon, mostly clear at night,
• Then just partly cloudy and cooler Tuesday and Tuesday night.
• highs 93-90 lows 63-58.
• Partly cloudy and cooler Wednesday and Wednesday night,
• Sunny just a bit warmer Thursday, partly cloudy and a bit warmer Thursday night through Saturday AM,  then sunny Saturday afternoon.
• highs 83-89 lows near 58. (seasonal averages high 86 low 57)

________________

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

• Mostly cloudy with a slight (20%) chance of isolated thunderstorms this AM, partly cloudy with a slight (20%) chance of thunderstorms this afternoon, mostly cloudy with a slight (20%) chance of isolated thunderstorms this evening, just mostly cloudy late tonight,
• Mostly cloudy Monday AM, sunny in the afternoon, then partly cloudy Monday evening through Tuesday night.
• highs near 67 lows near 57.
• Partly cloudy Wednesday, mostly clear at night,
• Mostly sunny Thursday, partly cloudy Thursday night through Friday night,
• Partly cloudy Saturday AM, then sunny in the afternoon.
• highs near 68 lows near 56. (seasonal averages high 65 low 53)

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with patchy smoke and cooler with a slight (20%) chance of showers and thunderstorms this AM, more patchy smoke with a (30%) chance of showers this afternoon and tonight,
• Partly cloudy and cooler with a slight (20%) chance of showers and thunderstorms Monday and in the evening, just partly cloudy late Monday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Tuesday afternoon and evening, then just partly cloudy Tuesday night.
• snow level above 8,000 ft. tonight through Tuesday night.
• highs 83-76 lows 53-47.
• Partly cloudy and a bit cooler Wednesday and Wednesday night,
• Mostly sunny Thursday AM, partly cloudy in the afternoon through Friday AM, mostly sunny and a bit warmer with a slight (20%) chance of showers and thunderstorms in the afternoon, mostly clear with a slight (20%) chance of showers and thunderstorms Friday night,
• Then mostly sunny with a slight (20%) chance of showers and thunderstorms Saturday.
• free air freezing level 11,000 ft. Wednesday, 12,000 ft. Wednesday night and Thursday, 13,000 ft. Thursday night, then snow level above 8,000 ft. Friday through Saturday.
• highs 72-74 lows 46-49.

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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.

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

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