Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Stampede Pass (KSMP)

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

unknown precip,mist

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.91 in (1012.87 mb)
Dewpoint	32°F (0°C)
Visibility	1.00 mi
Last update	07 Dec 12:28 PM PST

More Information:

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

Extended Forecast for

17 Miles WSW Leavenworth WA

This Afternoon
High: 33 °F
Snow
Tonight
Low: 28 °F
Snow and
Breezy
Monday
High: 36 °F
Rain/Snow
Monday Night
Low: 26 °F
Breezy.
Rain/Snow
then Heavy
Snow
Tuesday
High: 31 °F
Snow and
Breezy
Tuesday Night
Low: 29 °F
Heavy Snow
Wednesday
High: 34 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 28 °F
Heavy Snow
Thursday
High: 33 °F
Heavy Snow

Detailed Forecast

This Afternoon

Snow. High near 33. West wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 7 inches possible.

Tonight

Snow, mainly before 4am. Low around 28. Breezy, with a west wind 21 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 4pm. The rain and snow could be heavy at times. High near 36. Southwest wind around 16 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Monday Night

Rain before 7pm, then rain, possibly mixed with snow between 7pm and 10pm, then snow after 10pm. The rain and snow could be heavy at times. Low around 26. Breezy, with a west wind around 25 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Tuesday

Snow. High near 31. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Tuesday Night

Snow. The snow could be heavy at times. Low around 29. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 34. Breezy. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 28. Chance of precipitation is 80%.

Thursday

Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 33. Chance of precipitation is 70%.

Thursday Night

Snow likely before 10pm, then rain and snow likely. Mostly cloudy, with a low around 31.

Friday

A chance of snow. Mostly cloudy, with a high near 36.