Here is my new weekly weather quiz question. What is “a Land Breeze?” 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 (Shaded “Arch” shaped area with blue arrows) is weakening and a low (Shaded “U” shape with blue arrows) will follow bring more clouds and cooling us down again by Tuesday. Then the slight chance of rain returns on Wednesday. Look for a couple of frontal systems (position shown is Sunday) to be moving through the Pacific Northwest over the weekend. For those who are wondering, Daylight Saving Time officially ends and Standard Time returns at 2:00 am Sunday November 1st (Or at Bedtime Saturday October 31st, Halloween).

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 36 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 34 in the Good category measuring Particulate Matter.

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

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Advisories:

• A HEALTH ADVISORY CONTINUES FOR CLACKAMAS COVE PORTION OF THE CLACKAMAS  RIVER IN CLACKAMAS 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.
• 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. 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:

• Mostly clear with patchy fog tonight,
• Patchy AM fog, partly cloudy but cooler Tuesday afternoon, partly cloudy Tuesday night,
• Mostly cloudy Wednesday with a slight (20%) chance of AM rain, just mostly cloudy at night,
• A mix of clouds and sun Thursday, then just partly cloudy Thursday night.
• lows 45-53 cooling to 50 Thursday night highs near 75.
• A mix of clouds and sun Friday, mostly cloudy with a (40%) chance of rain Friday night,
• Mostly cloudy with a (30%) chance of rain Saturday, a (40%) chance of rain at night,
• Mostly cloudy and cooler with a good (50%) chance of rain Sunday, then mostly cloudy with a (30%) chance of rain Sunday night and Monday (Columbus Day).
• highs 78-68 warming to 70 Monday lows 56-52. (seasonal averages high 69 low 43)
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Your College Football Forecast:

Preliminary forecast Saturday October 10th:

Ducks vs Washington State at Autzen Stadium – Kickoff 3:00 PM PDT:  Mostly cloudy with a 40% chance of showers, 72 degrees warming to near 75 degrees then cooling as the game progresses.

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Beavers vs Arizona at Reser Stadium – Kickoff 1:00 PM PDT: Mostly cloudy with a 40% chance of showers, 68 degrees and warming to near 75 degrees by the end of the game.

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Forecast for the Umpqua Basin including Roseburg:

• Clear tonight,
• Partly cloudy and a bit cooler Tuesday and Tuesday night,
• Mostly cloudy Wednesday and at night,
• Mostly cloudy and warmer with a slight (20%) chance of rain Thursday AM, mostly cloudy in the afternoon and Thursday night.
• lows 52-55 cooling back to 52 Thursday night highs 79-83.
• Mostly cloudy with a slight (20%) chance of showers Friday and Friday night,
• Then mostly cloudy and a bit cooler with a (30%) chance of showers Saturday through Monday (Columbus Day).
• highs 83-75 lows 59-52. (seasonal averages high 71 low 47)

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

• Clear inland tonight while clear this evening at the shore and mostly cloudy with patchy coastal fog late tonight while clear inland tonight,
• Mostly cloudy and a bit cooler Tuesday with areas of AM coastal fog while partly cloudy with patchy AM inland fog, mostly cloudy Tuesday night through Wednesday night,
• Then mostly cloudy with a slight (20%) chance of rain Thursday through Friday night.
• lows 52-54 highs 64-66.
• Mostly cloudy with a slight (20%) chance of showers Saturday and at night,
• Then mostly cloudy with a (30%) chance of rain Sunday through Monday (Columbus Day).
• highs 67-65 lows 58-53. (seasonal averages high 63 low 47).

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Mostly sunny and a bit cooler Tuesday, partly cloudy Tuesday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Wednesday afternoon, becoming mostly cloudy at night,
• A mix of clouds and sun and a bit cooler Thursday, then  partly cloudy Thursday night.
• free air freezing level 14,000 ft. tonight through Tuesday night, snow level above 8,000 ft. Wednesday, then free air freezing level 13,000 ft. Wednesday night through Thursday night.
• lows 40-45 cooling to 43 Thursday night highs 66-70.
• A mix of clouds and sun and  a bit warmer Friday, mostly cloudy with a slight (20%) chance of rain Friday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Saturday, mostly cloudy with a (40%) chance of rain at night,
• Mostly cloudy and cooler with a good (50%) chance of rain Sunday, a (40%) chance of rain Sunday night,
• Then a mix of clouds and sun with a (40%) chance of rain Monday.
• free air freezing level 14,000 ft. Friday, then snow level above 8,000 ft. Friday night through Monday (Columbus Day).
• highs 73-59 lows 44-39.

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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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