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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).

Advisories:

• A FREEZE WARNING IS IN EFFECT  UNTIL 9 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FREEZE WATCH IS IN EFFECT FROM 10 PM THIS EVENING THROUGH 10 AM FRIDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER STORM WARNING IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING FOR THE  SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
•  WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL UNTIL       4 AM SATURDAY FOR
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 10 PM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 AM SATURDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTH OREGON CASCADES AND THE SISKIYOU  MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM FRIDAY UNTIL 10 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, 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:

• Mostly sunny this AM, partly cloudy this afternoon, increasing clouds with a good (50%) chance of snow late tonight,
• Cloudy with snow Friday AM, snow tapering off and ending in the afternoon (1-3 in. of snow possible, heaviest south of Eugene), clearing and cold Friday night,
• Mostly sunny Saturday, partly cloudy at night.
• highs 35-27 lows 24-9.
• Partly cloudy Sunday through Monday, mostly cloudy with a slight (20%) chance of rain, freezing rain or snow Monday night,
• Cloudy with a good (50%) chance of rain Tuesday and Tuesday night,
• Then rain likely (60%) Wednesday.
• highs 30-42 lows 15-33. (seasonal averages high 47 low 35).

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

• Areas of AM freezing fog, sunny today, partly cloudy this evening with a slight (20%) chance of coastal rain while a slight (20%) chance of inland rain and snow, cloudy with rain and snow late tonight (up to 1 in. of snow below 1,000 ft. mainly inland and 1-2 in. of snow possible above 1,000 ft., snow level at the surface),
• Coastal AM rain and snow Friday and rain in the afternoon while rain and snow inland (1-2 in. of snow possible, snow level 200 ft. rising to 1,000 ft. in the afternoon), mostly cloudy in the evening with a slight (20%) chance of rain or snow, clearing and colder late Friday night,
• Sunny Saturday, partly cloudy in the evening, then mostly clear late Saturday night.
• highs 42-37 lows 29-22.
• Partly cloudy Sunday through Monday, mostly cloudy with a slight (20%) chance of rain Monday night,
• Mostly cloudy with a (40%) chance of rain Tuesday and Tuesday night,
• Then cloudy and breezy with a (40%) chance of rain and breezy Wednesday.
• highs 42-52 lows 26-37. (seasonal averages high 51 low 40)

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Forecast for the Cascades of Lane County:

• Mostly sunny this AM, partly cloudy this afternoon, cloudy with a good (50%) chance of snow developing late tonight,
• Mostly cloudy with snow Friday (2-5 in. of snow possible), a good (50%) chance of evening snow, partly cloudy with a slight (20%) chance of snow late Friday night,
• Mostly sunny Saturday, then partly cloudy Saturday night.
• free air freezing level at the surface today and this evening, snow level at the surface late tonight through Friday night, then free air freezing level at the surface Saturday and Saturday night.
• highs 23-15 lows 16-5.
• Partly cloudy Sunday through Monday, more clouds with a slight (20%) chance of snow Monday night,
• Cloudy with a good (50%) chance of rain or snow Tuesday and Tuesday night,
• Then mostly cloudy with rain or snow likely (60%) Wednesday.
• free air freezing level at the surface Sunday through Monday, snow level at the surface Monday night, 2,500 ft. Tuesday, 3,000 ft. Tuesday night, then 3,500 ft. Wednesday.
• highs 19-33 lows 10-30.