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 through California bringing a chance for rain. A frontal system moved into Oregon today dropping some more much-needed rain. There will be a short dry spell Tuesday through Saturday then another frontal system will return the shower chances by late Saturday night into Sunday. 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 (30%) chance of evening showers (under 0.10 in. of rain possible), partly cloudy with patchy fog late tonight and Tuesday AM, mostly sunny and a bit warmer in the afternoon, clear in the evening, partly cloudy with patchy fog late Tuesday night,
• Patchy AM fog, mostly cloudy Wednesday and at night,
• Partly cloudy Thursday, then party cloudy with patchy fog late Thursday night.
• lows 50-44 warming to 46 Wednesday night cooling to near 40 Thursday night highs near 68.
• Patchy AM fog, partly cloudy and a bit cooler Friday and Friday night with patchy late night fog,
• A mix of clouds and sun and a bit warmer Saturday, becoming mostly cloudy with a slight (20%) chance of rain at night,
• A mix of clouds and sun with a (40%) chance of rain and a bit cooler Sunday, becoming mostly cloudy with a (40%) chance of rain Sunday night,
• Then mostly cloudy with a (30%) chance of rain Monday.
• highs 65-70 cooling back to 65 Monday lows 42-46. (seasonal averages high 62 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, wind NE 5-10 mph.

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Preliminary Forecast for Saturday October 24th:

Beavers vs Colorado at Reser Stadium, Corvallis– Kickoff 7:30 PM PDT: Partly cloudy with slowly increasing clouds, near 64 degrees cooling as the game progresses, wind light.

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of showers this evening (under 0.10 in. of rain possible), mostly cloudy with patchy fog late tonight and Tuesday AM, sunny and warmer Tuesday afternoon and Wednesday, clear Tuesday night, mostly cloudy Wednesday evening, partly cloudy at night,
• Mostly sunny Thursday, then mostly clear at night.
• lows 52-47 highs 73-67.
• Partly cloudy Friday, mostly cloudy Friday night,
• Mostly cloudy and cooler Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night and Sunday, then cloudy with a (30%) chance of rain Sunday night and Monday.
• highs near 66 lows 45-48. (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 a slight (20%) chance of inland 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, partly cloudy in the afternoon, just mostly cloudy Wednesday night,
• Partly cloudy Thursday, mostly clear in the evening, then partly cloudy late at night.
• lows 52-45 highs near 63.
• Partly cloudy Friday, mostly cloudy Friday night,
• Mostly cloudy with a slight (20%) chance of rain Saturday, mostly cloudy and a (40%) chance of rain Saturday night and Sunday, cloudy with a (40%) chance of rain Sunday night,
• Then mostly cloudy with rain likely (60%) Monday.
• highs near 63 lows 48-50. (seasonal averages high 61 low 46).

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Forecast for the Cascades in Lane County:

• Cloudy with a (40%) chance of evening showers, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
• A mix of clouds and sun in the AM, mostly sunny and warmer Tuesday afternoon, clear at night,
• Partly cloudy Wednesday, mostly cloudy Wednesday night,
• Then partly cloudy and cooler Thursday and Thursday night.
• snow level above 8,000 ft. tonight, free air freezing level 9,000 ft. Tuesday, 13,000 ft. Tuesday night, 12,000 ft. Wednesday, 11,000 ft. Wednesday night, 10,000 ft. Thursday, then 9,000 ft. Thursday night.
• lows 38-40 cooling to 33 Thursday night highs 60-62 cooling 55 Thursday.
• Partly cloudy Friday and Friday night,
• A mix of clouds and sun Saturday, partly cloudy Saturday night,
• A mix of clouds and sun with a slight (20%) chance of rain Sunday, then mostly cloudy with a (30%) chance of rain Sunday and Monday.
• free air freezing level 9,000 ft. Friday, 10,000 ft. Friday night, 9,000 ft. Saturday and Saturday night, snow level 8,000 ft. Sunday, 7,500 ft. Sunday night, then 8,000 ft. Monday.
• highs near 58-60 cooling to 56 Sunday warming to 58 Monday lows 34-37 cooling back to 34 Sunday night.

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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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