Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Hazardous Weather Conditions

Winter Storm Warning until March 14, 05:00 AM PDT

Current conditions at

ALPENTAL EXIT (TALPE)

Lat: 47.427°NLon: 121.418°WElev: 2972.0ft.

heavy snow

30°F

-1°C

Humidity	99%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	0.25 mi
Last update	13 Mar 03:51 AM PDT

More Information:

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

Extended Forecast for

10 Miles NNE Snoqualmie Pass WA

Winter Storm Warning March 13, 02:40pm until March 14, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning March 13, 02:40pm until March 14, 05:00am
NOW until 5:00am Sat
Winter Storm Warning
This Afternoon
High: 26 °F
Heavy Snow
Tonight
Low: 19 °F
Heavy Snow
Saturday
High: 23 °F
Heavy Snow
Saturday Night
Low: 13 °F
Chance Snow
then Mostly
Cloudy
Sunday
High: 30 °F
Snow Likely
Sunday Night
Low: 28 °F
Snow then
Rain/Snow
Monday
High: 39 °F
Rain/Snow
then Rain
Monday Night
Low: 34 °F
Rain

Detailed Forecast

This Afternoon

Snow. The snow could be heavy at times. High near 26. Wind chill values between 18 and 23. West wind around 7 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 9 to 13 inches possible.

Tonight

Snow. The snow could be heavy at times. Low around 19. Wind chill values between 6 and 16. West wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

Saturday

Snow likely, mainly before 7am. The snow could be heavy at times. Mostly cloudy, with a high near 23. Wind chill values between 4 and 10. West northwest wind 16 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

Saturday Night

A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 13. Wind chill values between 5 and 10. West northwest wind 6 to 9 mph becoming southwest after midnight. New snow accumulation of less than a half inch possible.

Sunday

Snow likely, mainly after 11am. Mostly cloudy, with a high near 30. South wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Sunday Night

Snow before 2am, then rain, possibly mixed with snow. Low around 28. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 11am. High near 39. Chance of precipitation is 90%. Little or no snow accumulation expected.

Monday Night

Rain. Cloudy, with a low around 34.

Tuesday

Rain. Cloudy, with a high near 39.

Tuesday Night

Rain. Cloudy, with a low around 36.

Wednesday

Rain. Cloudy, with a high near 41.

Wednesday Night

Rain. Cloudy, with a low around 35.