Here is my new weekly weather quiz question. What is “Juvenile Water?” 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.

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An upper level high pressure ridge has taken over bringing back the sunshine and warming us up for the rest of the week into the weekend. We will see a record high over 100 degrees today and the 90s could be around a bit longer.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 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 22 in the Good category measuring .

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

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Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM FRIDAY FOR HOT, DRY, UNSTABLE CONDITIONS COMBINED WITH CRITICALLY DRY FUELS FOR THE GIFFORD PINCHOT NATIONAL FOREST, THE MT. HOOD NATIONAL FOREST WEST OF THE CASCADE CREST, THE WILLAMETTE NATIONAL FOREST AND THE WILLAMETTE VALLEY AND ADJACENT FOOTHILLS, AS WELL AS THE CLARK COUNTY LOWLANDS, THE NORTH OREGON COAST RANGE AND WILLAPA HILLS INCLUDING PORTIONS OF THE SIUSLAW NATIONAL FOREST, THE TILLAMOOK NATIONAL FOREST AND OTHER OREGON DEPARTMENT OF FORESTRY AND BLM LANDS.
• A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE UMPQUA BASIN.
• A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM FRIDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON,  THE LOWER COLUMBIA, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• AN EXCESSIVE HEAT WARNING IS IN EFFECT FROM NOON TODAY UNTIL 9 PM FRIDAY FOR 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 HEAT ADVISORY IS IN EFFECT UNTIL 11 PM SATURDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY AND JACKSON COUNTY.
• 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.

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

• Sunny and warmer (Hot!) today, clear tonight,
• Mostly sunny and hot Friday, partly cloudy Friday night,
• Then partly cloudy and just a bit cooler Saturday and Saturday night.
• highs 104-98 lows 63-60.
• Partly cloudy Sunday AM, mostly sunny and cooler in the afternoon, partly cloudy at night,
• Mostly sunny and a bit cooler Monday and Tuesday, partly cloudy both nights,
• Mostly sunny Wednesday AM, then partly cloudy and cooler in the afternoon.
• highs 95-85 lows 59-55. (seasonal averages high 84 low 52)

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Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5

Reading as of: 7/25/15

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Forecast for the Umpqua Basin including Roseburg:

• Sunny and warmer (Hot!) today, clear tonight,
• Sunny Friday AM, partly cloudy and slightly cooler but still hot in the afternoon and evening, mostly cloudy Friday night,
• Partly cloudy and cooler Saturday, a slight (20%) chance of thunderstorms in the evening, just partly cloudy Saturday night.
• highs 106-102 lows near 66.
• Partly cloudy and cooler Sunday through Monday night,
• Partly cloudy and cooler with a slight (20%) chance of thunderstorms Tuesday and Tuesday night,
• Then partly cloudy and a bit cooler Wednesday.
• highs 96-90 lows 65-58. (seasonal averages high 86 low 57)

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

• Sunny and warmer today and Friday, clear tonight, partly cloudy Friday evening mostly cloudy late Friday night,
• Mostly cloudy Saturday AM, partly cloudy and cooler in the afternoon, a slight (20%) chance of evening showers, partly cloudy at night.
• highs 70-75 cooling back to 68 Saturday lows 60-57.
• Partly cloudy Sunday through Monday AM, sunny and a bit warmer in the afternoon, then partly cloudy Monday night through Wednesday.
• highs 66-70 cooling back to 67 Wednesday lows near 56. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Sunny and warmer today, clear tonight,
• Sunny Friday AM, partly cloudy and warm in the afternoon, partly cloudy Friday night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Saturday afternoon and evening, then just partly cloudy late Saturday night.
• free air freezing level 15,000 ft. today through Friday, 16,000 ft. Friday night, snow level above 8,000 ft. Saturday and Saturday night.
• highs 92-88 lows 57-53.
• Partly cloudy and cooler with a slight (20%) chance of showers and thunderstorms Sunday afternoon through Wednesday AM, then just partly cloudy and a bit cooler Wednesday afternoon.
• snow level above 8,000 ft. Sunday through Wednesday.
  highs 83-72 lows 53-48.

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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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