Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 04:00 PM PST

Current conditions at

Lookout Pass (ITDA7)

Lat: 47.4611°NLon: 115.6937°WElev: 4526.0ft.

light snow

32°F

0°C

Humidity	95%
Wind Speed	SSE 4 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	1.24 mi
Wind Chill	28°F (-2°C)
Last update	09 Dec 10:15 PM PST

More Information:

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

Extended Forecast for

3 Miles NNW Lookout Pass MT

Flood Watch December 9, 10:45pm until December 12, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 10:45pm until December 12, 04:00pm
NOW until 4:00pm Fri
Flood Watch
Tonight
Low: 33 °F⇑
Rain/Snow
Wednesday
High: 44 °F
Rain and
Breezy
Wednesday Night
Low: 43 °F
Rain and
Breezy
Thursday
High: 42 °F
Rain and
Breezy
Thursday Night
Low: 38 °F
Rain then
Rain/Snow
Friday
High: 41 °F
Rain/Snow
Friday Night
Low: 35 °F
Chance Rain
Saturday
High: 40 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after 2am. Snow level 4300 feet rising to 7400 feet. Temperature rising to around 39 by 4am. Calm wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

Wednesday

Rain. High near 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Wednesday Night

Rain. Steady temperature around 43. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Thursday

Rain. Snow level 6900 feet lowering to 5900 feet in the afternoon . High near 42. Breezy, with a west wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain before 1am, then rain, possibly mixed with snow. Snow level 5400 feet. Low around 38. West wind around 6 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Rain, possibly mixed with snow, becoming all rain after 1pm. Snow level 5200 feet rising to 6600 feet in the afternoon. High near 41. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain. Snow level 6400 feet lowering to 5900 feet after midnight . Cloudy, with a low around 35.

Saturday

A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm, then a slight chance of rain and snow after 4pm. Snow level 5500 feet. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.

Saturday Night

A slight chance of rain and snow before 7pm, then a chance of rain. Snow level 5600 feet. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

Sunday

A 50 percent chance of rain. Snow level 5300 feet. Mostly cloudy, with a high near 40.

Sunday Night

A 40 percent chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 35.

Monday

Rain. Snow level 5700 feet. High near 40. Chance of precipitation is 80%.

Monday Night

Rain. Snow level 5800 feet. Low around 35. Chance of precipitation is 90%.

Tuesday

Rain and snow. Snow level 4900 feet. High near 38. Chance of precipitation is 80%.