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 flattening allowing more clouds and some moisture to move into the Pacific Northwest. A warm front (Red line with triangles on it.) moves through bringing a good chance of rain that will only last through this morning. Just a slight chance this afternoon. 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 43 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 39 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 cloudy with a good (50%) chance of AM rain, a slight (20%) chance of rain this afternoon, mostly cloudy with patchy fog late tonight,
• Partly cloudy with patchy fog Thursday AM, partly cloudy and a bit warmer in the afternoon and Thursday night with patchy fog late,
• Patchy AM fog and a slight (20%) chance of rain, a mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Friday afternoon, then mostly cloudy with a good (50%) chance of rain Friday night.
• highs 74-77 cooling to near 75 Friday lows 52-60.
• Cloudy and a bit cooler with rain likely (70%) Saturday, mostly cloudy with a good (50%) chance of rain at night,
• A mix of clouds and sun and cooler with a (40%) chance of rain Sunday, partly cloudy with a (30%) chance of rain Sunday night,
• Mostly cloudy with a good (50%) chance of rain Monday (Columbus Day), a slight (20%) chance of rain at night,
• Then a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Tuesday.
• highs 72-69 warming back to 72 Tuesday lows 54-50. (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 rain likely (70%), 70 degrees warming to near 72 degrees then cooling a bit as the game progresses. You’ll most likely need the rain gear.

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Beavers vs Arizona at Reser Stadium – Kickoff 1:00 PM PDT: Mostly cloudy with rain likely (70%), 67 degrees and warming to near 72 degrees by the end of the game. You’ll most likely need the rain gear.

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Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy today, partly cloudy tonight through Thursday AM, sunny in the afternoon, partly cloudy Thursday night and Friday AM, mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday afternoon, then mostly cloudy with a (30%) chance of rain Friday night.
• highs 78-82 lows 54-60.
• Mostly cloudy and a bit cooler with a (30%) chance of rain Saturday, cloudy with showers likely (60%) in the evening, partly cloudy with a slight (20%) chance of showers late Saturday night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday through Monday (Columbus Day) and Monday night,
• Then just partly cloudy Tuesday.
• highs 78-76 lows 53-50. (seasonal averages high 71 low 46)

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

• Patchy AM coastal fog and a slight (20%) chance of showers, mostly cloudy this afternoon, partly cloudy tonight,
• Mostly cloudy with patchy AM fog, sunny Thursday afternoon, mostly cloudy in the evening, partly cloudy at night and Friday AM, mostly cloudy with a slight (20%) chance of rain in the afternoon, then a (30%) chance of rain Friday night.
• highs near 66 lows 54-60.
• Mostly cloudy with rain likely (60%) Saturday and Saturday night,
• Mostly cloudy with a slight (20%) chance of rain Sunday through Monday (Columbus Day) and Monday night,
• Then just partly cloudy Tuesday.
• highs near 66 lows near 53. (seasonal averages high 62 low 47).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a slight (20%) chance of rain mainly this AM, mostly cloudy this afternoon and tonight,
• Partly cloudy Friday, then mostly cloudy with a (30%) chance of rain Friday night.
• snow level above 8,000 ft. today, free air freezing level 15,000 ft. tonight through Thursday night, 16,000 ft. Friday, then snow level above 8,000 ft. Friday night.
• highs 68-72 lows 44-47.
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Saturday, rain likely (70%) Saturday night,
• A mix of clouds and sun and cooler with a (40%) chance of rain Sunday, partly cloudy with a (40%) chance of rain Sunday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday (Columbus Day), a (40%) chance of rain at night,
• Then a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Tuesday.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 62-58 warming back to 65 Tuesday lows near 40.

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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.