Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 07:00 AM PST

Current conditions at

Stampede Pass (KSMP)

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

rain,mist

44°F

7°C

Humidity	100%
Wind Speed	W 9 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	44°F (7°C)
Visibility	2.00 mi
Wind Chill	39°F (4°C)
Last update	11 Dec 02:56 AM PST

More Information:

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

Extended Forecast for

4 Miles SE Snoqualmie Pass WA

Flood Watch December 11, 03:09am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 11, 03:09am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 37 °F
Heavy Rain
Thursday
High: 40 °F
Rain
Thursday Night
Low: 41 °F
Rain Likely
Friday
High: 45 °F
Rain Likely
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 50 °F
Mostly Sunny
Saturday Night
Low: 38 °F
Chance Rain
then Rain
Sunday
High: 43 °F
Rain

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Low around 37. West wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain. High near 40. Northwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

Rain likely. Cloudy, with a steady temperature around 41. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain likely, mainly before 4pm. Mostly cloudy, with a high near 45. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 36. West wind around 6 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 50.

Saturday Night

Rain, mainly after 4am. Low around 38. Chance of precipitation is 80%.

Sunday

Rain. High near 43. Chance of precipitation is 80%.

Sunday Night

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

Monday

Rain. Mostly cloudy, with a high near 45.