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 frontal system (shown offshore) is headed our way bringing the chance of rain back. Another frontal system will be moving through the Pacific Northwest Tuesday. 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 42 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 40 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:

• Partly cloudy with areas of fog late tonight,
• Mostly cloudy with areas of patchy fog and a slight (20%) chance of AM rain, a good (50%) chance of rain and cooler Friday afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of rain at night (under 0.10 in. of rain possible),
• Cloudy with a good (50%) chance of rain Saturday AM, rain (0.15 in. of rain possible) and breezy (Wind: S 5-10 mph increasing to S 15-25 mph in the afternoon) a bit cooler with rain in the afternoon, showers likely (70%) Saturday night (0.20 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy in the afternoon, then partly cloudy Sunday night.
• lows 53-60 cooling to 54 Saturday night highs 72-69 warming back to 72 Sunday.
• A mix of clouds and sun with a slight (20%) chance of showers Monday (Columbus Day), mostly cloudy with a slight (20%) chance of showers at night,
• A mix of clouds and sun Tuesday, Wednesday and Thursday (warmer), then partly cloudy at night.
• highs 73-77 lows 52-48. (seasonal averages high 68 low 42)

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Your Saturday College Football Forecast:

Ducks vs Washington State at Autzen Stadium – Kickoff 3:00 PM PDT: Mostly cloudy with rain and breezy in the afternoon, 67 degrees warming to near 70 degrees then cooling a bit as the game progresses, wind S 15-25 mph. 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 and becoming breezy, 65 degrees and warming to near 70 degrees by the end of the game, wind S 15-25 mph in the afternoon. You’ll most likely need the rain gear.

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain Friday afternoon and late Friday night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with a (30%) chance of rain Saturday (under 0.10 in. of rain possible), a (40%) chance of showers at night (under 0.10 in. of rain possible),
• Then just partly cloudy and a bit cooler Sunday and Sunday night.
• lows 54-58 cooling to near 55 Saturday night highs 80-83 cooling to 76 Saturday.
• Partly cloudy Monday (Columbus Day) through Tuesday, mostly clear Tuesday night,
• Then mostly sunny Wednesday and Thursday, mostly clear Wednesday night.
• highs 80-76 warming to near 80 Wednesday lows 52-49. (seasonal averages high 70 low 46)

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

• Mostly clear this evening, partly cloudy late tonight,
• Cloudy with a (40%) chance of rain Friday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of rain Friday night (under 0.10 in. of rain possible),
• Cloudy with a good (50%) chance of AM coastal rain and rain in the afternoon while a slight (20%) chance of AM inland rain and rain likely (70%) and cooler Saturday afternoon (0.15 in. of rain possible), evening coastal showers likely (70%) and a (30%) chance of showers Saturday night while a (30%) chance of showers inland at night (0.15 in. of rain possible),
• Then partly cloudy Sunday and at night.
• lows 55-60 cooling to 56 Saturday night highs 66-68 cooling back to 66 Saturday.
• Partly cloudy Monday (Columbus Day) through Tuesday, mostly clear Tuesday night,
• Mostly sunny Wednesday and Thursday, mostly clear Wednesday night.
• highs 64-66 lows 53-50. (seasonal averages high 62 low 47).

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Partly cloudy and a bit warmer with a slight (20%) chance of rain Friday afternoon, mostly cloudy in the evening, partly cloudy with a slight (20%) chance of rain late Friday night,
• Mostly cloudy with a slight (20%) chance of rain Saturday AM, cooler and breezy (Wind: SW 10-15 mph increasing to SW 10-15 mph increasing to SW 15-25 mph gusts to 40 mph) with rain likely (70%) Saturday afternoon and  evening, showers likely (70%) late at night and breezy (Wind: SW 15-25 mph decreasing to SW 5-15 mph late at night),
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday AM, then partly cloudy Sunday night.
• free air freezing level 16,000 ft. tonight and Friday, snow level above 8,000 ft. Saturday through Sunday, then free air freezing level 12,000 ft. Sunday night.
• lows 44-47 cooling to 39 Sunday night highs 68-60 warming back to 68 Sunday.
• Partly cloudy and a bit warmer with a slight (20%) chance of showers Monday (Columbus Day) and at night,
• Partly cloudy and a bit warmer Tuesday and Tuesday night,
• Then mostly sunny Wednesday and Thursday, mostly clear Wednesday night.
• snow level above 8,000 ft. Monday and Monday night, free air freezing level 14,000 ft. Tuesday, then 13,000 ft. Tuesday night through Thursday.
• highs 58-68 lows 39-42.

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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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