Here is my new weekly weather quiz question. What is an “okta?” 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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High pressure (Shaded “Arch” shape with blue arrows) took over for a very short time and now low pressure (“Shaded “U” shape with blue arrows) returns with rain.  A frontal system is headed our way. The warm front will move in between tonight and Friday followed by the cold front (position shown is Sunday) on Saturday. Sorry, but Halloween will be quite wet. Remember, Daylight Saving Time officially ends and Standard Time returns this weekend at 2:00 am Sunday November 1st (Or at Bedtime Saturday October 31st, Halloween). Turn your clocks BACK one hour. Remember the Fire Department recommends that you check the batteries in your smoke alarms, CO2 detectors, and Raydon detectors to make sure they still work. Change them if necessary.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 29 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 31 in the Good category measuring Particulate Matter.

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

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Advisories:

• A HEALTH ADVISORY HAS BEEN LIFTED 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 HAS DROPPED TO SAFE LEVELS.
• 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  HAS BEEN LIFTED 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 LEVELS HAVE DROPPED TO A NON-DANGEROUS LEVEL.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with a good (50%) chance of showers this AM, a mix of clouds and sun with a slight (20%) chance of afternoon showers (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of rain late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with rain likely (60%) Friday and in the evening, a good (50%) chance of rain late Friday night,
• Cloudy with AM rain increasing, rain Saturday afternoon, rain heavy at times and breezy in the evening, rain changing to showers late Saturday night.
• highs 65-62 warming to 64 Saturday lows 52-55 cooling back to 50 Saturday night.
• Mostly cloudy and cooler with showers and a slight (20%) chance of thunderstorms Sunday, showers likely (70%) Sunday night and Monday, a (40%) chance  of showers Monday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Tuesday, mostly cloudy at night,
• Then partly cloudy Wednesday.
• highs 58-55 lows 45-40. (seasonal averages high 58 low 40)

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Your College Football Forecast:

Today:

Ducks vs Arizona State at Sun Devil Stadium, Tempe, AZ– Kickoff 7:30 PM PDT: Partly cloudy increasing to mostly cloudy with a slight chance of a shower, near 70 degrees cooling to 60 by the end of the game, wind E 5-8 mph.

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Saturday:

Beavers vs Utah at  Rice-Eccles Stadium, Salt Lake City, Utah– Kickoff 4:00 PM PDT (5:00 PM MDT): Mostly sunny then mostly clear, 63 and cooling as the game progresses, wind S-SE 5-10 mph.

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Forecast for Roseburg:

• Mostly cloudy with a (30%) chance of isolated showers today, becoming partly cloudy this evening, mostly cloudy with patchy fog late tonight,
• Mostly cloudy and a bit cooler with a (30%) chance of rain Friday, cloudy with a (30%) chance of rain Friday night,
• Mostly cloudy and a bit warmer with a (40%) chance of rain Saturday, then rain Saturday night.
• highs 67-63 lows 49-54 cooling to 52 Saturday night.
• Mostly cloudy with showers and a slight (20%) chance of thunderstorms and cooler Sunday, showers and colder Sunday night,
• Showers likely (70%) Monday, mostly cloudy with a (30%) chance of showers Monday night through Tuesday night,
• Then just partly cloudy Wednesday.
• highs near 58 lows near 46-40. (seasonal averages high 60 low 43)

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

• Partly cloudy this afternoon and evening, mostly cloudy tonight with patchy fog and a slight (20%) chance of isolated coastal showers late at night,
• Mostly cloudy with a (30%) chance of rain Friday and Friday night,
• Mostly cloudy with coastal rain likely Saturday AM, and rain in the afternoon while a (40%) chance of inland AM rain and inland rain likely in the afternoon, then rain and breezy Saturday night.
• highs near 62 lows 53-57 cooling to 54 Saturday night.
• Mostly cloudy and cooler with showers likely (70%) with a slight (20%) chance of thunderstorms Sunday, showers Sunday night,
• Showers likely (70%) Monday, a (30%) chance of showers Monday night and Tuesday, a slight (20%) chance of showers Tuesday night,
• Then just partly cloudy Wednesday.
• highs near 57 lows 50-46. (seasonal averages high 59 low 45).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of scattered showers today, a slight (20%) chance of rain tonight,
• Cloudy and a bit warmer with a good (50%) chance of rain Friday and Friday night,
• Then rain Saturday and Saturday night.
• snow level 7,000 ft. today, above 8,000 ft. tonight through Saturday,then above 8,000 ft. falling to 7,000 ft. late Saturday night.
• highs 48-52 lows 40-43 cooling to 38 Saturday night.
• Mostly cloudy and cooler with showers Sunday, rain and snow showers Sunday night,
• Rain and snow showers likely (70%) and a bit cooler Monday, cloudy with a (40%) chance of rain and snow showers at night.
• A mix of clouds and sun and a bit warmer with a (40%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
• Then just partly cloudy Wednesday.
• snow level 6,000 ft. Sunday, 5,000 ft. Sunday night, 4,0000 ft. Monday and Monday night, 3,500 ft. Tuesday, 4,000 ft. Tuesday night, then free air freezing level 4,500 ft. Wednesday.
• highs near 42-35 warming to 40 Wednesday lows 30-25.

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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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