Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Stampede Pass (KSMP)

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

light snow,mist

33°F

1°C

Humidity	100%
Wind Speed	NW 6 MPH
Barometer	29.94 in (1013.89 mb)
Dewpoint	33°F (1°C)
Visibility	1.75 mi
Wind Chill	27°F (-3°C)
Last update	09 Dec 12:22 AM PST

More Information:

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

Extended Forecast for

15 Miles N Roslyn WA

Flood Watch until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 30 °F
Rain/Snow
Tuesday
High: 39 °F
Chance Snow
then
Rain/Snow
Tuesday Night
Low: 32 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 46 °F
Rain/Snow
Wednesday Night
Low: 37 °F
Rain/Snow
then Rain
Thursday
High: 44 °F
Rain/Snow
Thursday Night
Low: 38 °F
Rain Likely
then Chance
Rain/Snow
Friday
High: 45 °F
Chance
Rain/Snow
then Chance
Rain

Detailed Forecast

Overnight

Snow, possibly mixed with rain, mainly before 4am. The rain could be heavy at times. Low around 30. Northwest wind 11 to 13 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

Tuesday

A chance of snow before 10am, then snow, possibly mixed with rain after 1pm. High near 39. West wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain could be heavy at times. Temperature rising to around 46 by 3am. Light and variable wind becoming west 5 to 9 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain, possibly mixed with snow before 1pm, then rain between 1pm and 4pm, then rain, possibly mixed with snow after 4pm. The rain could be heavy at times. High near 46. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. Low around 37. West wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow, becoming all rain after 1pm. High near 44. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday

A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.

Friday Night

A 30 percent chance of rain. Mostly cloudy, with a low around 37.

Saturday

A chance of rain. Partly sunny, with a high near 46.

Saturday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34.

Sunday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 40.

Sunday Night

Rain and snow likely. Mostly cloudy, with a low around 32.