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 26 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 27 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 TUESDAY UNTIL 11 AM WEDNESDAY FOR THE UPPER SLOPES AND RIDGES IN EASTERN DOUGLAS COUNTY, JOSEPHINE COUNTY, CURRY COUNTY, COOS COUNTY, JACKSON COUNTY AND KLAMATH COUNTY.
• A HEAT ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 11 PM SATURDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, 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:

• Partly cloudy this evening, clear late tonight,
• Sunny and warmer Tuesday, Wednesday and Thursday, clear at night.
• lows 54-65 highs 90-100.
• 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:

• Clear tonight,
• Sunny and warmer Tuesday, Wednesday and Thursday, clear each night,
• lows 55-66 highs 83-105.
• 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:

• Clear tonight,
• Sunny and warmer Tuesday, Wednesday and Thursday, clear each night,
• lows 55-62 highs 75-70.
• 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:

• Mostly clear tonight,
• Sunny and warmer Tuesday and Wednesday, clear both nights,
• Mostly sunny Thursday, then mostly clear at night.
• free air freezing level 12,000 ft. tonight, 14,000 ft. Tuesday, 13,000 ft. Tuesday night, then 15,000 ft. Wednesday through Thursday night,
• lows 42-65 highs 78-87.
•  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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