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

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

29°F

-2°C

Humidity	NA
Wind Speed	W 18 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Wind Chill	17°F (-8°C)
Last update	NA

More Information:

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

Extended Forecast for

8 Miles NW Plain WA

Flood Watch December 9, 03:17am until December 11, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 03:17am until December 11, 04:00pm
NOW until 4:00pm Thu
Flood Watch
Overnight
Low: 38 °F
Rain/Snow
Tuesday
High: 46 °F
Chance Rain
then
Rain/Snow
Tuesday Night
Low: 38 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 51 °F
Heavy Rain
Wednesday Night
Low: 42 °F
Rain
Thursday
High: 49 °F
Rain
Thursday Night
Low: 41 °F
Chance Rain
Friday
High: 51 °F
Chance Rain

Detailed Forecast

Overnight

Snow, possibly mixed with rain. Low around 38. West wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday

Rain before 5pm, then rain, possibly mixed with snow. High near 46. West wind 12 to 17 mph becoming light and variable in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after midnight. The rain could be heavy at times. Temperature falling to near 38 by 9pm, then rising to around 44 during the remainder of the night. Light and variable wind becoming northwest 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. The rain could be heavy at times. High near 51. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 42. West wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain. High near 49. Chance of precipitation is 80%.

Thursday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 41.

Friday

A 40 percent chance of rain. Partly sunny, with a high near 51.

Friday Night

A 30 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 41.

Saturday

A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 50.

Saturday Night

Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.