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 is taking over bringing back the sunshine and warming us up for the rest of the week. We could see 100 degrees before the week is out.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 19 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 22 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 PM THIS EVENING  UNTIL 11 AM WEDNESDAY FOR THE UPPER SLOPES AND RIDGES IN EASTERN DOUGLAS COUNTY, THE UPPER SLOPES AND RIDGES IN JOSEPHINE COUNTY, THE UPPER SLOPES AND RIDGES IN CURRY COUNTY, THE UPPER SLOPES AND RIDGES IN COOS COUNTY, THE UPPER SLOPES AND RIDGES IN JACKSON COUNTY AND EXTREME WESTERN KLAMATH COUNTY.
• A FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY EVENING FOR THE MT. HOOD NATIONAL FOREST WEST OF THE CASCADE CREST, THE WILLAMETTE  VALLEY AND ADJACENT FOOTHILLS.
• A HEAT ADVISORY IS IN EFFECT FROM 11 AM WEDNESDAY 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 FROM 8 AM TODAY UNTIL 1 PM THURSDAY FOR THE CURRY COUNTY COAST.
• A HEAT ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 11PM SATURDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY AND JACKSON COUNTY.

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

• Sunny and warmer today, Wednesday and Thursday, clear at night.
• highs 90-100 lows 59-65.
• Mostly sunny and cooler Friday through Monday, mostly clear nights.
• highs 98-90 lows 64-59. (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 today, Wednesday and Thursday, clear each night,
• highs 93-105 lows 61-66.
• Mostly sunny Friday, mostly clear at night,
• Sunny Saturday morning, then partly cloudy and cooler with a slight (20%) chance of thunderstorms Saturday afternoon through Monday.
• highs 102-95 lows near 65. (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, Wednesday and Thursday, clear each night,
• highs 75-70 lows 58-62.
• Mostly sunny and warmer Friday, mostly clear at night,
• Then partly cloudy Saturday through Monday.
• highs 74-67 lows 62-56. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Sunny and warmer today and Wednesday, clear both nights,
• Mostly sunny Thursday, then mostly clear at night.
• free air freezing level 14,000 ft. today, 13,000 ft. tonight, then 15,000 ft. Wednesday through Thursday night,
• highs 78-87 lows 50-65.
•  Mostly sunny Friday, partly cloudy Friday night,
• Mostly sunny Saturday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, just partly cloudy late at night,
• Mostly sunny Sunday AM, then partly cloudy and cooler with a slight (20%) chance of showers and thunderstorms Sunday afternoon through Monday.
• free air freezing level 15,000 ft. Friday and Friday night, then snow level above 8,000 ft. Saturday through Monday.
• highs 86-80 lows 64-58.

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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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