Here is my new weekly weather quiz question. What is “Obscuration?” 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 low is moving into the California bringing a continued chance for rain. A frontal system moves into Oregon today dropping some more much-needed rain. There will be a short dry spell Tuesday through Wednesday afternoon then another frontal system will return the shower chances by Wednesday night into Thursday. Remember, 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 25 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 28 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 WILLOW CREEK RESERVOIR JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY (NE CORNER OF OREGON). 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 THE 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 showers, a bit cooler with rain likely (70%) this afternoon (0.15 in. of rain possible), a slight (20%) chance of evening showers (under 0.10 in. of rain possible), mostly cloudy with patchy fog late tonight and Tuesday AM, mostly sunny and a bit warmer in the afternoon, clear Tuesday night,
• Patchy AM fog, a mix of clouds and sun and a bit warmer Wednesday afternoon, then becoming mostly cloudy with a slight (20%) chance of rain at  night.
• highs 64-68 lows 48-43 warming to 46 Wednesday night.
• Partly cloudy and a bit cooler Thursday, then party cloudy with patchy fog late Thursday night,
• Patchy AM fog, partly cloudy Friday and Friday night with patchy late night fog,
• A mix of clouds and sun Saturday, becoming mostly cloudy with a slight (20%) chance of rain at night,
• Then a mix of clouds and sun with a (40%) chance of rain Sunday.
• highs 65-63 lows 40-43. (seasonal averages high 63 low 41)

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Your College Football Forecast:

Preliminary forecast for Thursday October 29th:

Ducks vs Arizona State at Sun Devil Stadium, Tempe, AZ– Kickoff 7:30 PM PDT: Mostly clear, near 80 degrees cooling as the game continues.

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Preliminary Forecast for Saturday October 24th:

Beavers vs Colorado at Reser Stadium, Corvallis– Kickoff 7:30 PM PDT: Mostly cloudy with a slight chance of a shower, near 60 degrees cooling as the game progresses, wind WSW 5-10 mph.

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Forecast for Roseburg:

• Mostly cloudy with a (40%) chance of AM rain, showers likely (60%) this afternoon (under 0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers this evening (under 0.10 in. of rain possible), just partly cloudy late tonight,
• Mostly cloudy with patchy AM fog, sunny and warmer Tuesday afternoon, clear at night,
• Partly cloudy with patchy AM fog, partly cloudy Wednesday afternoon, then just mostly cloudy Wednesday night.
• highs 65-70 lows 49-45 warming to 48 Wednesday night.
• Mostly sunny Thursday and Friday, mostly clear Thursday  night, partly cloudy Friday night,
• Mostly cloudy and cooler Saturday, then partly cloudy with a slight (20%) chance of rain Saturday night,
•  Then mostly cloudy with a (30%) chance of rain Sunday.
• highs 66-70 cooling back to 66 Sunday lows 42-44. (seasonal averages high 65 low 44)

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

• Mostly cloudy with coastal rain likely (70%) while a good (50%) chance of AM inland rain and a bit cooler with inland showers likely (60%) this afternoon (0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers this evening, partly cloudy late tonight,
• Mostly cloudy with patchy fog Tuesday AM, sunny and a bit warmer in the afternoon, clear Tuesday night,
• Mostly cloudy with patchy fog Wednesday AM, mostly cloudy with a slight (20%) chance of coastal rain in the afternoon, a slight (20%) chance of evening showers, then just mostly cloudy late Wednesday night,
• highs 63-65 cooling back to 63 Wednesday lows 52-48.
• Partly cloudy Thursday at night,
• Sunny Friday, mostly cloudy Friday night,
• Mostly cloudy with a slight (20%) chance of rain Saturday, then partly cloudy and a (40%) chance of rain Saturday night and Sunday.
• highs 63-67 cooling to near 60 Saturday lows near 46. (seasonal averages high 61 low 46).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of rain this AM, rain likely (70%) this afternoon (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of evening showers, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
• Partly cloudy in the AM, mostly sunny and warmer Tuesday afternoon, clear at night,
• Then partly cloudy Wednesday, mostly cloudy Wednesday night.
• snow level above 7,500 ft. today, above 8,000 ft. tonight, free air freezing level 12,000 ft. Tuesday, 13,000 ft. Tuesday night and Wednesday, then 10,000 ft. Wednesday night.
• highs 53-60 lows 37-40 cooling to 35 Wednesday night.
• Partly cloudy and cooler Thursday and Thursday night,
• Mostly sunny Friday, partly cloudy at night,
• A mix of clouds and sun Saturday, partly cloudy Saturday night,
• Then a mix of clouds and sun with a slight (20%) chance of rain Sunday.
• free air freezing level 9,000 ft. Thursday through Friday night, 10,000 ft. Saturday, 9,000 ft. Saturday night, then snow level 8,000 ft. Sunday.
• highs near 52 lows 32-36.

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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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