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 saw a record high of 104 degrees today and Friday will b the same. As we cool down a bit the 90s could be around a while longer.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 54 in the Moderate category measuring Ozone.

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

Cottage Grove: The Air Quality Index is 54 in the Moderate category measuring Ozone.

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 NORTH OREGON COAST RANGE, THE EAST SLOPES OF THE CENTRAL OREGON COAST RANGE, THE WILLAMETTE VALLEY AND ADJACENT FOOTHILLS, THE NORTH OREGON CASCADES FOOTHILLS, THE GIFFORD PINCHOT NATIONAL FOREST, THE MT. HOOD NATIONAL FOREST WEST OF THE CASCADE CREST, THE WILLAMETTE NATIONAL FOREST , THE 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 9 PM FRIDAY FOR THE UMPQUA BASIN.
• A RED FLAG WARNING IS IN EFFECT UNTIL 10 PM SATURDAY FOR THE CENTRAL MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS AND THE STRAWBERRY MOUNTAINS.
• 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 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:

• Clear tonight,
• Mostly sunny and hot Friday, partly cloudy and a bit cooler Friday night through Sunday AM, mostly sunny and cooler in the afternoon, then partly cloudy Sunday night.
• lows 64-60 highs 104-94
• Partly cloudy in the AM, mostly sunny and a bit cooler Monday and Tuesday, then partly cloudy and cooler Tuesday night through Thursday.
• 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:

• Clear this evening, partly cloudy with areas of smoke tonight,
• Sunny Friday AM, partly cloudy and slightly cooler but still hot with areas of smoke in the afternoon, partly cloudy with a slight (20%) chance of evening thunderstorms, a slight (20%) chance of showers late Friday night,
• Partly cloudy and cooler Saturday, a slight (20%) chance of thunderstorms in the evening, just mostly cloudy Saturday night,
• Then partly cloudy and cooler Sunday and Sunday night.
• lows near 66 highs 106-102.
• Partly cloudy Monday and at night,
• Partly cloudy and cooler with a slight (20%) chance of thunderstorms Tuesday and Tuesday night,
• Just partly cloudy and a bit cooler Wednesday and Wednesday night,
• Then sunny Thursday.
• 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:

• Mostly clear tonight,
• Sunny Friday, mostly clear in the evening at the shore and partly cloudy with a slight (20%) chance of showers late at night while just partly cloudy inland Friday night,
• Mostly cloudy Saturday AM, partly cloudy and cooler in the afternoon, a slight (20%) chance of evening inland thunderstorms, mostly cloudy at night,
• Then partly cloudy Sunday and Sunday night.
• lows 60-57 highs 70-75 cooling back to 68 Saturday.
• Partly cloudy Monday, mostly clear in the evening, partly cloudy Monday night through Wednesday, mostly clear at night,
  Then mostly sunny Thursday.
• 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:

• 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 through Sunday night.
• free air freezing level 15,000 ft. tonight and Friday, 16,000 ft. Friday night, snow level above 8,000 ft. Saturday through Sunday night.
• lows 57-53 highs 92-83.
• Partly cloudy and cooler with a slight (20%) chance of showers and thunderstorms Monday through Thursday.
• snow level above 8,000 ft. Monday through Thursday.
  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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