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 11 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	44°F (7°C)
Visibility	2.00 mi
Wind Chill	38°F (3°C)
Last update	11 Dec 02:25 AM PST

More Information:

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

Extended Forecast for

2 Miles SSE Snoqualmie Pass WA

Flood Watch December 11, 02:31am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 11, 02:31am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 40 °F
Heavy Rain
Thursday
High: 44 °F
Rain
Thursday Night
Low: 40 °F
Rain Likely
Friday
High: 47 °F
Rain Likely
Friday Night
Low: 38 °F
Chance Rain
Saturday
High: 52 °F
Mostly Sunny
Saturday Night
Low: 40 °F
Chance Rain
then Rain
Sunday
High: 46 °F
Rain

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Low around 40. West wind around 15 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain. High near 44. Northwest wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

Rain likely. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain likely. Mostly cloudy, with a high near 47. 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 50 percent chance of rain. Mostly cloudy, with a low around 38. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Mostly sunny, with a high near 52.

Saturday Night

Rain, mainly after 4am. Low around 40. Chance of precipitation is 80%.

Sunday

Rain. High near 46. Chance of precipitation is 80%.

Sunday Night

Rain. Low around 41. Chance of precipitation is 80%.

Monday

Rain. Mostly cloudy, with a high near 48.

Monday Night

Rain. Mostly cloudy, with a low around 35.