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

37°F

3°C

Humidity	66%
Wind Speed	N 0 MPH
Barometer	30.4 in (1029.46 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Last update	30 Dec 04:15 PM PST

More Information:

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

Extended Forecast for

Toppenish WA

Air Stagnation Advisory December 30, 04:24pm until January 1, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 30, 04:24pm until January 1, 12:00pm
NOW until 12:00pm Thu
Air Stagnation Advisory
Tonight
Low: 23 °F
Mostly Clear
then Patchy
Freezing Fog
Wednesday
High: 36 °F
Patchy
Freezing Fog
then Mostly
Sunny
Wednesday Night
Low: 22 °F
Partly Cloudy
then Patchy
Freezing Fog
New Year's Day
High: 34 °F
Patchy
Freezing Fog
then Chance
Rain
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: 30 °F
Chance Rain
Saturday
High: 44 °F
Chance Rain

Detailed Forecast

Tonight

Patchy freezing fog after 4am. Mostly clear, with a low around 23. Calm wind.

Wednesday

Patchy freezing fog before 10am. Partly sunny, with a high near 36. Calm wind.

Wednesday Night

Patchy freezing fog after 4am. Partly cloudy, with a low around 22. Calm wind.

New Year's Day

A 30 percent chance of rain after 4pm. Patchy freezing fog before 10am. Snow level 1300 feet rising to 3200 feet in the afternoon. Mostly cloudy, with a high near 34. Calm wind.

Thursday Night

A chance of rain, snow, and freezing rain before 10pm, then a chance of snow and freezing rain between 10pm and 1am, then a chance of freezing rain after 1am. Patchy freezing fog after 1am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%.

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, mostly cloudy, with a high near 38. Chance of precipitation is 40%.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 30.

Saturday

A 30 percent chance of rain. Mostly cloudy, with a high near 44.

Saturday Night

A 20 percent chance of rain. Mostly cloudy, with a low around 31.

Sunday

Partly sunny, with a high near 45.

Sunday Night

A slight chance of rain. Mostly cloudy, with a low around 29.

Monday

A slight chance of rain. Mostly cloudy, with a high near 43.