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

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

snow,freezing fog

28°F

-2°C

Humidity	100%
Wind Speed	NA 3 MPH
Barometer	29.79 in (1008.81 mb)
Dewpoint	28°F (-2°C)
Visibility	0.50 mi
Last update	13 Mar 10:19 PM PDT

More Information:

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

Extended Forecast for

8 Miles SE Snoqualmie Pass WA

Winter Storm Warning March 13, 10:45pm until March 14, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning March 13, 10:45pm until March 14, 05:00am
NOW until 5:00am Sat
Winter Storm Warning
Tonight
Low: 20 °F
Heavy Snow
Saturday
High: 24 °F
Snow Likely
and Breezy
Saturday Night
Low: 16 °F
Chance Snow
then Mostly
Cloudy
Sunday
High: 30 °F
Snow Likely
Sunday Night
Low: 28 °F
Rain/Snow
Monday
High: 39 °F
Rain/Snow
then Rain
Monday Night
Low: 34 °F
Rain
Tuesday
High: 40 °F
Rain

Detailed Forecast

Tonight

Snow, mainly before 2am. The snow could be heavy at times. Low around 20. Northwest wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

Saturday

Snow likely, mainly before 8am. Partly sunny, with a high near 24. Breezy, with a west wind 20 to 22 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 16. West wind 12 to 17 mph becoming light after midnight. Winds could gust as high as 21 mph.

Sunday

Snow likely, mainly after 11am. Mostly cloudy, with a high near 30. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Sunday Night

Snow before 11pm, then rain and snow likely. Low around 28. Light and variable wind becoming west around 6 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 11am. High near 39. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday Night

Rain. Low around 34. Chance of precipitation is 80%.

Tuesday

Rain. High near 40. Chance of precipitation is 80%.

Tuesday Night

Rain. Low around 36. Chance of precipitation is 80%.

Wednesday

Rain. Mostly cloudy, with a high near 41.

Wednesday Night

Rain. Mostly cloudy, with a low around 36.