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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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Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT  THROUGH THIS EVENING FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 8 AM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FREEZE WATCH IS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FREEZE WATCH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.

A Blue-Green Algae warning  has been cancelled for Devils Lake while the warning continues for Tenmile Lakes in Coos County, 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) will be drawing much colder air down to the Pacific Northwest. One frontal system moved through Oregon with the warm front already followed by the cold front. The second front is pushing through the West now  and another cold front will push down from the northwest (Blue lines on map) bringing some precipitation, snow flakes possible with no valley accumulation expected, but much colder temperatures starting tonight.

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

• Mostly cloudy with scattered rain and snow show showers decreasing late tonight (under 0.10 in. of rain possible, up to 0.50 in. of snow accumulation possible south and east of  Eugene),
• Partly cloudy Tuesday, clear and colder with patchy freezing fog Tuesday night,
• Patchy AM freezing fog, sunny and colder Wednesday afternoon, clear with areas of freezing fog late Wednesday night,
• Patchy AM freezing fog, partly cloudy Thursday afternoon, mostly cloudy with a good (50%) chance of snow Thursday night.
• lows 29-14 warming to 23 Thursday night highs 39-32.
• Mostly cloudy with snow likely (70% ) Friday and cloudy with a slight (20%) chance of snow Friday night,
• Mostly cloudy with a slight (20%) chance of showers Saturday, partly cloudy at night,
• Then mostly sunny Sunday, then mostly cloudy with a slight (20%) chance of snow Sunday night and Monday.
• highs 32-36 cooling to 33 Monday lows 17-24. (seasonal averages high 47 low 35).

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

• Mostly cloudy with increasing coastal showers this evening and showers likely (60%) late tonight while inland evening rain and snow showers increasing then rain and snow showers likely (60%) inland and colder late tonight (under 0.10 in. of rain possible, snow level 1,500 ft. falling to 1,000 ft. late at night, no accumulation expected),
• Mostly cloudy Tuesday with patchy fog and a slight (20%) chance of AM coastal showers while patchy fog with a slight (20%) chance of AM inland rain and snow showers, mostly sunny in the afternoon, mostly clear with patchy freezing fog late Tuesday night,
• Partly cloudy with patchy AM freezing fog, sunny Wednesday afternoon, clear in the evening, with patchy freezing fog late Wednesday night,
• Sunny with patchy AM freezing fog, partly cloudy Thursday afternoon and evening, then mostly cloudy with a good (50%) chance of rain and snow Thursday night.
• lows 36-25 warming to 30 Thursday night highs 47-43.
• Mostly cloudy with rain and snow showers likely (70%) Friday AM, showers likely (60%) in the afternoon, a (40%) chance of rain and snow showers Friday night,
• Mostly cloudy with a slight (20%) chance of rain and snow showers Saturday AM, just mostly cloudy in the afternoon and Saturday night,
• Mostly cloudy with a (30%) chance of rain and snow  Sunday, a (40%) chance of rain Sunday night,
• Then mostly cloudy with a (30%) chance of showers Monday.
• highs 40-45 cooling to near 40 Monday lows 30-33. (seasonal averages high 52 low 40)

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Forecast for the Cascades of Lane County:

• Cloudy with snow showers this evening and decreasing snow showers late tonight, (0.25 in. of rain possible, 2 in. – 5 in. of snow possible),
• Mostly cloudy with early, a good (50%) chance of AM snow showers Tuesday afternoon, clear at night,
• Sunny Wednesday, clear Wednesday night,
• Partly cloudy Thursday, then mostly cloudy with a slight (20%) chance of snow Thursday night.
• snow level at the surface tonight and Tuesday, free air freezing level at the surface Tuesday night through Thursday, then snow level at the surface Thursday night.
• lows 18-4 warming to 16 Thursday night highs 24-20.
• Cloudy with a occasional snow Friday, a slight (20%) chance of snow Friday night,
• A mix of clouds and sun with a slight (20%) chance of snow showers Saturday, partly at night,
• Mostly sunny Sunday, then mostly cloudy with a slight (20%) chance of snow Sunday night and Monday.
• free air freezing level at the surface Friday through Saturday, free air freezing level at the surface Saturday night and Sunday, then snow level at the surface Sunday night and Monday.
• highs 19-29 cooling to 25 Monday lows 11-20.