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

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California 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

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

21°F

-6°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.34 in (1027.43 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Last update	31 Dec 05:20 AM PST

More Information:

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

Extended Forecast for

6 Miles SW Highland WA

Air Stagnation Advisory December 31, 05:32am until January 1, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 31, 05:32am until January 1, 12:00pm
NOW until 12:00pm Thu
Air Stagnation Advisory
Today
High: 35 °F
Patchy
Freezing Fog
then Partly
Sunny
Tonight
Low: 24 °F
Mostly Cloudy
New Year's Day
High: 31 °F
Slight Chance
Snow then
Wintry Mix
Likely
Thursday Night
Low: 29 °F
Wintry Mix
Likely
Friday
High: 37 °F
Chance
Rain/Freezing
Rain then
Slight Chance
Rain
Friday Night
Low: 31 °F
Chance Rain
Saturday
High: 41 °F
Chance Rain
Saturday Night
Low: 34 °F
Chance Rain

Detailed Forecast

Today

Patchy freezing fog before 7am. Partly sunny, with a high near 35. Calm wind becoming north around 5 mph in the afternoon.

Tonight

Mostly cloudy, with a low around 24. Calm wind.

New Year's Day

A slight chance of snow between 10am and 4pm, then snow likely, possibly mixed with rain and freezing rain. Cloudy, with a high near 31. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday Night

Snow likely, possibly mixed with rain and freezing rain before 7pm, then rain or freezing rain likely. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday

A chance of rain or freezing rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 37. Calm wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 30%.

Friday Night

A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 31.

Saturday

A 40 percent chance of rain. Mostly cloudy, with a high near 41.

Saturday Night

A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34.

Sunday

Mostly cloudy, with a high near 44.

Sunday Night

A slight chance of rain. Mostly cloudy, with a low around 34.

Monday

A slight chance of rain. Mostly cloudy, with a high near 42.