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Here is my new weekly weather quiz question. Define “veering winds.” 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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Record low 18 degrees Wednesday in Eugene and we broke the record again this morning (unofficially 15 degrees).

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Advisories:

• A WINTER STORM WARNING IS IN EFFECT FROM 1 AM UNTIL 4 PM FRIDAY FOR THE  CENTRAL OREGON COAST AND THE COAST RANGE OF WESTERN OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 2 PM FRIDAY FOR THE NORTHL OREGON COAST AND THE COAST RANGE OF  NORTHWEST OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 2 AM UNTIL 4 PM FRIDAY FOR THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 1 AM UNTIL 10 PM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST AND CENTRAL DOUGLAS COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 7 AM FRIDAY UNTIL 4 AM SATURDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTH OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 10 AM FRIDAY FOR THE  SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, AND CENTRAL DOUGLAS COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM FRIDAY UNTIL 10 AM SATURDAY FOR KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

A Blue-Green Algae warning  has been cancelled for Tenmile Lakes in Coos County, but continues for Fern Ridge Reservoir, Lost Creek Lake, and Willow Creek Reservoir (NE Oregon). Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.

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An upper level high pressure ridge (Shaded “Arch” shape) is drawing much colder air down to the Pacific Northwest. A frontal system pushed through the West and continues to bring much colder air our way while a trough of  (Shaded “U” shape) slides to the south and east sending snow-producing moisture up at us from the south. There will be some snow, mainly Friday, but so far it looks like the South Willamette Valley could see from an inch or so to possibly 3 inches of snow from Albany/Corvallis south with the heaviest accumulation south of Eugene. It all depends on how fast the low moves as to where the snow starts to pile up. Be careful out there. Drive slower and don’t make any sudden moves as your vehicle could start to skid.

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

• Cloudy with occasional snow flurries late tonight, snow developing toward morning,
• Cloudy with snow Friday (2-5 in. of snow possible, even heavier snowfalls possible south of Eugene), mostly cloudy with a slight (20%) chance of evening snow showers, partly cloudy and cold late Friday night,
• Patchy AM freezing fog, sunny Saturday afternoon, mostly clear at night.
• Mostly sunny Sunday, mostly clear and colder at night.
• lows 23-4 warming to 15 Sunday night highs 29-32.
• Mostly sunny Monday, mostly cloudy with a slight (20%) chance of a combination of rain, light freezing rain and snow Monday evening, a (40%) chance of rain with a slight (20%) chance of light freezing rain and snow late at night,
• Cloudy with a good (50%) chance of rain Tuesday, rain in the evening,  rain likely (60%) late Tuesday night with temperatures holding steady overnight,
• Rain likely (60%) Wednesday and Wednesday night,
• Then rain likely (70%) with steady daytime temperatures Thursday.
• highs 36-48 lows 22-40. (seasonal averages high 47 low 35).

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

• Mostly clear this evening, clouds increasing to mostly cloudy with a good (50%) chance of coastal rain and snow late tonight and rain and snow toward morning while a good (50%) chance of inland snow late and snow toward morning, (1 in. of snow below 1,000 ft. and 1-2 in. of snow possible above 1,000 ft., snow level at the surface late),
• Rain and snow Friday (2-3 in. of snow possible below 1,000 ft., 2-4 in. of snow above 1,000 ft. , snow level 100 ft.), mostly cloudy in the evening with a (30%) chance of rain or snow, clearing and colder late Friday night (snow level 1,000 ft, 1.00 in. of snow possible),
• Sunny Saturday, partly cloudy in the evening, then partly cloudy Saturday night through Sunday night.
• lows 29-20 warming to 26 Sunday night highs 40-34 warming to 39 Sunday.
• Partly cloudy Sunday through Monday, partly cloudy with a slight (20%) chance of rain Monday night,
• Mostly cloudy with a slight (20%) chance of rain Tuesday, a (40%) chance of rain Tuesday night and Wednesday, then showers likely (60%) and breezy Wednesday night and Thursday.
• highs 44-53 lows 30-43. (seasonal averages high 51 low 40)

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Forecast for the Cascades of Lane County:

• Mostly cloudy with a slight (20%) chance of snow late tonight, snow likely (60%) toward morning,
• Mostly cloudy with snow Friday (2-5 in. of snow possible), snow showers likely (70%) in the evening, mostly cloudy and colder with a slight (20%) chance of snow showers (1.00 in. of snow possible, possible storm total 7 in. of snow) late Friday night,
• Partly cloudy in the AM, mostly sunny Saturday afternoon, mostly clear Saturday night,
• Mostly sunny and just a bit warmer Sunday, then partly cloudy at night.
• snow level at the surface tonight through Friday night, then free air freezing level at the surface Saturday through Sunday night.
• lows 12-5 warming to 12 Sunday night highs 17-15 warming to 19 Sunday.
• Mostly sunny and a bit warmer Monday, partly cloudy and not as cold with a slight (20%) chance of evening snow, a (40%) chance of snow Monday night,
• Cloudy with a good (50%) chance of snow Tuesday and Tuesday night,
• Snow and rain likely (60%) Wednesday, then rain and snow likely (60%) Wednesday night and Thursday, .
• free air freezing level at the surface Monday, snow level at the surface Monday night through Tuesday night, 3,000 ft. Wednesday and Wednesday night, then 4,000 ft. Thursday
• highs 28-38 lows 24-32.