Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Air Stagnation Advisory until January 1, 12:00 PM PST

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

27°F

-3°C

Humidity	90%
Wind Speed	N 0 MPH
Barometer	30.36 in (1028.11 mb)
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Last update	30 Dec 10:15 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Prosser WA

Air Stagnation Advisory December 30, 10:42pm until January 1, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 30, 10:42pm until January 1, 12:00pm
NOW until 12:00pm Thu
Air Stagnation Advisory
Tonight
Low: 22 °F
Partly Cloudy
Wednesday
High: 39 °F
Patchy
Freezing Fog
then Mostly
Sunny
Wednesday Night
Low: 22 °F
Mostly Clear
then Patchy
Freezing Fog
New Year's Day
High: 34 °F
Patchy
Freezing Fog
then Chance
Rain/Snow
Thursday Night
Low: 29 °F
Chance Wintry
Mix and
Patchy
Freezing Fog
Friday
High: 38 °F
Chance
Rain/Freezing
Rain and
Patchy
Freezing Fog
Friday Night
Low: 31 °F
Chance Rain
Saturday
High: 44 °F
Chance Rain

Detailed Forecast

Tonight

Partly cloudy, with a low around 22. Calm wind.

Wednesday

Patchy freezing fog before 10am. Partly sunny, with a high near 39. Calm wind.

Wednesday Night

Patchy freezing fog after 1am. Partly cloudy, with a low around 22. Calm wind.

New Year's Day

A chance of rain and snow after 4pm. Patchy freezing fog before 10am. Snow level 1500 feet rising to 3600 feet in the afternoon. Mostly cloudy, with a high near 34. Calm wind. Chance of precipitation is 30%.

Thursday Night

A chance of rain, snow, and freezing rain before 10pm, then a chance of freezing rain between 10pm and 1am, then a chance of rain or freezing rain after 1am. Patchy fog after 1am. Patchy freezing fog after 1am. Otherwise, cloudy, with a low around 29. Calm wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

Friday

A chance of rain or freezing rain before 10am, then a chance of rain. Patchy fog before 10am. Patchy freezing fog before 10am. Otherwise, cloudy, with a high near 38. Chance of precipitation is 50%.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 31.

Saturday

A 40 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 44.

Saturday Night

A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 33.

Sunday

Mostly cloudy, with a high near 47.

Sunday Night

A slight chance of rain. Mostly cloudy, with a low around 31.

Monday

A slight chance of rain. Mostly cloudy, with a high near 44.