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

29°F

-2°C

Humidity	100%
Wind Speed	NA 3 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	29°F (-2°C)
Visibility	0.25 mi
Last update	13 Mar 04:56 PM PDT

More Information:

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

Extended Forecast for

9 Miles ESE Snoqualmie Pass WA

Winter Storm Warning March 13, 05:36pm until March 14, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning March 13, 05:36pm until March 14, 05:00am
NOW until 5:00am Sat
Winter Storm Warning
This Afternoon
High: 38 °F
Rain/Snow
Tonight
Low: 25 °F
Rain/Snow
Saturday
High: 34 °F
Snow Likely
then Chance
Snow
Saturday Night
Low: 20 °F
Chance Snow
then Mostly
Cloudy
Sunday
High: 39 °F
Snow Likely
then
Rain/Snow
Likely
Sunday Night
Low: 33 °F
Rain
Monday
High: 48 °F
Rain
Monday Night
Low: 39 °F
Rain

Detailed Forecast

This Afternoon

Snow, possibly mixed with rain. High near 38. Calm wind. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.

Tonight

Snow, possibly mixed with rain, becoming all snow after 2am. The snow could be heavy at times. Low around 25. Light northwest wind. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Saturday

Snow likely, mainly before 8am. Partly sunny, with a high near 34. West wind 5 to 10 mph, with gusts as high as 25 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 20. West wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.

Sunday

Snow likely before 2pm, then rain and snow likely. Mostly cloudy, with a high near 39. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Sunday Night

Rain. Low around 33. Chance of precipitation is 90%.

Monday

Rain. High near 48. Chance of precipitation is 80%.

Monday Night

Rain. Low around 39. Chance of precipitation is 80%.

Tuesday

Rain. High near 50. Chance of precipitation is 80%.

Tuesday Night

Rain. Mostly cloudy, with a low around 41.

Wednesday

Rain. Mostly cloudy, with a high near 50.