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 NNW Snoqualmie Pass WA

Winter Storm Warning March 13, 12:20pm until March 14, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning March 13, 12:20pm until March 14, 05:00am
NOW until 5:00am Sat
Winter Storm Warning
This Afternoon
High: 30 °F
Snow and
Areas
Freezing Fog
Tonight
Low: 24 °F
Snow and
Dense
Freezing Fog
Saturday
High: 27 °F
Snow
Saturday Night
Low: 19 °F
Chance Snow
then Mostly
Cloudy
Sunday
High: 35 °F
Snow
Sunday Night
Low: 34 °F
Rain/Snow
Monday
High: 41 °F
Rain/Snow
then Rain
Monday Night
Low: 38 °F
Rain

Detailed Forecast

This Afternoon

Snow. Areas of freezing fog. High near 30. Wind chill values between 23 and 28. West wind around 7 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.

Tonight

Snow. Patchy fog between 11pm and midnight. Widespread dense freezing fog before 11pm. Low around 24. Wind chill values between 14 and 19. West northwest wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow. High near 27. Wind chill values between 13 and 18. West northwest wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 19. Wind chill values between 11 and 16. West northwest wind 5 to 13 mph becoming east in the evening. Little or no snow accumulation expected.

Sunday

Snow, mainly after 11am. High near 35. East southeast wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Sunday Night

Snow before 8pm, then rain, possibly mixed with snow. Low around 34. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 8am. High near 41. Chance of precipitation is 90%. Little or no snow accumulation expected.

Monday Night

Rain. Mostly cloudy, with a low around 38.

Tuesday

Rain. Mostly cloudy, with a high near 46.

Tuesday Night

Rain. Cloudy, with a low around 40.

Wednesday

Rain. Cloudy, with a high near 44.

Wednesday Night

Rain. Cloudy, with a low around 40.