Here is my weekly weather quiz question for the last time. What is a “Jet Max?” Here is the correct answer. A Jet Max (or Jet Streak) is a point or area of relative maximum wind speeds within a jet stream. 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.

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Not much relief from the drought, but with northwesterly winds at least we clear out some smoke. A series of upper level lows (Shaded “U” shapes with blue arrows) will march out of the Gulf of Alaska at us. That will keep us in cooler temperatures for a while. A high pressure ridge (Shaded “Arch” shape with blue arrows on previous graphic) will heat us up Tuesday.

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Air Quality Index:

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

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

Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.

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

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Advisories:

• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
• A HEALTH ADVISORY CONTINUES FOR UPPER KLAMATH LAKE AND AGENCY LAKE DOWN TO KENO DAM, LOCATED JUST NORTH OF KLAMATH FALLS ALONG HIGHWAY 97 IN KLAMATH COUNTY. THE SECTION FROM THE KENO DAM TO THE CALIFORNIA BORDER HAS BEEN CLEARED FOR USE. 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.
• A HEALTH ADVISORY CONTINUES FOR SEAL ROCK STATE PARK BEACH FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA  – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS  SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

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

• Clear tonight,
• Sunny and warmer Sunday, clear at night,
• Mostly sunny Monday afternoon, clear Monday night,
• Sunny and warmer, hot, Tuesday afternoon, then clear Tuesday night.
• lows 49-59 highs 87-95.
• Sunny, but a bit cooler, still hot Wednesday, sunny and cooler Thursday, clear both nights,
• Partly cloudy Friday AM, then mostly sunny in the afternoon and a bit warmer Saturday, mostly clear Friday night.
• highs 88-82 warming to 85 Saturday lows 57-54. (seasonal averages high 83 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Clear with haze and areas of smoke tonight,
• Sunny and warmer with haze and areas of smoke Sunday, Monday and Tuesday, clear with haze and areas of smoke and each night,
• lows 56-59 highs 89-99.
• Mostly sunny and a bit cooler Wednesday, mostly clear at night,
• Sunny and a bit cooler Thursday and Friday, clear Thursday night, mostly clear Friday night,
• Then mostly sunny and a bit warmer Saturday.
• highs 95-85 warming to 88 Saturday lows near 58. (seasonal averages high 85 low 56)

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

• Clear tonight,
• Sunny and a bit warmer Sunday and Monday, mostly clear both nights,
• Mostly sunny and a bit warmer Tuesday, then mostly clear at night.
• lows near 56 highs 66-70.
• Sunny Wednesday AM, partly cloudy and a bit cooler in the afternoon through Thursday, mostly clear Thursday night,
• Mostly sunny Friday and Saturday, mostly clear Friday night.
• highs 65-67 lows near 56. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny and warmer Sunday, Monday, and Tuesday, clear each night.
• free air freezing level 14,000 ft. tonight, 15,000 ft. Sunday through Monday, then 16,000 ft. Monday night through Tuesday night.
• lows 43-52 highs 78-85.
• Sunny and cooler Wednesday and Thursday, clear Wednesday night, mostly clear Thursday night,
• Mostly sunny Friday, mostly clear at night,
• Then sunny and a bit warmer Saturday.
• free air freezing level 16,000 ft. Wednesday and Wednesday night, 15,000 ft. Thursday through Friday night, then 16,000 ft. Saturday.
• highs 79-70 warming to 74 Saturday lows 47-44.

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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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