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

Flood Watch until December 11, 04:00 PM PST

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

39°F

4°C

Humidity	98%
Wind Speed	NW 2 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	09 Dec 02:01 AM PST

More Information:

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

Extended Forecast for

4 Miles W Washington Pass WA

Flood Watch December 9, 02:20am until December 11, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 02:20am until December 11, 04:00pm
NOW until 4:00pm Thu
Flood Watch
Overnight
Low: 29 °F
Chance Snow
Tuesday
High: 31 °F
Chance Snow
then Heavy
Snow
Tuesday Night
Low: 28 °F⇑
Heavy Snow
then
Rain/Snow
Wednesday
High: 36 °F
Rain/Snow
then Heavy
Snow
Wednesday Night
Low: 32 °F
Heavy Snow
Thursday
High: 34 °F
Heavy Snow
Thursday Night
Low: 29 °F
Snow Likely
Friday
High: 35 °F
Snow Likely

Detailed Forecast

Overnight

A 30 percent chance of snow, mainly after 4am. Mostly cloudy, with a steady temperature around 29. West wind around 17 mph, with gusts as high as 28 mph. Total nighttime snow accumulation of 3 to 5 inches possible.

Tuesday

A chance of snow before 10am, then snow likely after 1pm. The snow could be heavy at times. Partly sunny, with a high near 31. West wind 6 to 15 mph becoming south in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow before 1am, then rain, possibly mixed with snow. The rain and snow could be heavy at times. Temperature rising to around 35 by 4am. South wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

Wednesday

Rain and snow, becoming all snow after 10am. The snow could be heavy at times. High near 36. West wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 32. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 34. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday

Snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 30.

Saturday

A 40 percent chance of snow. Partly sunny, with a high near 35.

Saturday Night

Snow. Low around 29. Chance of precipitation is 80%.