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	29.98 in (1015.24 mb)
Dewpoint	44°F (7°C)
Visibility	2.00 mi
Wind Chill	38°F (3°C)
Last update	11 Dec 03:08 AM PST

More Information:

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

Extended Forecast for

Snoqualmie Pass WA

Flood Watch December 11, 03:15am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 11, 03:15am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 39 °F
Heavy Rain
Thursday
High: 43 °F
Rain/Snow
then Rain
Thursday Night
Low: 39 °F
Rain Likely
Friday
High: 46 °F
Rain Likely
Friday Night
Low: 37 °F
Chance Rain
Saturday
High: 52 °F
Mostly Sunny
Saturday Night
Low: 40 °F
Chance Rain
then Rain
Sunday
High: 45 °F
Rain

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Low around 39. West wind around 13 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain before 7am, then rain, possibly mixed with snow between 7am and 10am, then rain after 10am. High near 43. Northwest wind around 6 mph becoming calm in the morning. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Rain likely. Cloudy, with a low around 39. 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 46. Calm wind becoming west around 5 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 37. Calm wind. 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 45. Chance of precipitation is 80%.

Sunday Night

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

Monday

Rain. Mostly cloudy, with a high near 47.