Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Wind Advisory in effect from December 8, 11:00 PM MST until December 9, 11:00 AM MST

Current conditions at

JETTE (JETM8)

Lat: 47.76706°NLon: 114.23378°WElev: 3593.0ft.

36°F

2°C

Humidity	90%
Wind Speed	S 3 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	08 Dec 07:43 AM MST

More Information:

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

Extended Forecast for

Swan Lake MT

Wind Advisory December 8, 11:00pm until December 9, 11:00am

Click here for hazard details and duration

Wind Advisory

Today
High: 42 °F
Rain/Snow
Tonight
Low: 37 °F
Rain
Tuesday
High: 45 °F
Rain/Snow
then Chance
Rain/Snow
Tuesday Night
Low: 33 °F
Rain/Snow
Wednesday
High: 45 °F
Rain/Snow
then Rain
Wednesday Night
Low: 36 °F
Rain/Snow
Thursday
High: 41 °F
Rain/Snow
Thursday Night
Low: 30 °F
Rain/Snow
then Snow
Friday
High: 41 °F
Rain/Snow
Likely

Detailed Forecast

Today

Rain and snow before 1pm, then rain likely between 1pm and 2pm, then rain, possibly mixed with snow after 2pm. High near 42. South southwest wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tonight

Rain. Low around 37. South southwest wind 11 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday

Rain before 11am, then a chance of rain and snow. Snow level 6000 feet lowering to 3900 feet in the afternoon . High near 45. West southwest wind around 11 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday Night

A chance of rain and snow before 11pm, then snow between 11pm and 2am, then rain, possibly mixed with snow after 2am. Snow level rising to 4100 feet after midnight. Low around 33. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Wednesday

Rain, possibly mixed with snow, becoming all rain after 8am. High near 45. Light south southwest wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain before 11pm, then rain, possibly mixed with snow. Some thunder is also possible. Low around 36. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow. Snow level 4700 feet. High near 41. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain and snow, becoming all snow after 11pm. Snow level 4300 feet lowering to 3600 feet after midnight . Cloudy, with a low around 30.

Friday

Snow likely before 8am, then rain and snow likely. Snow level rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 41.

Friday Night

A chance of rain and snow. Mostly cloudy, with a low around 31.

Saturday

A chance of rain and snow. Partly sunny, with a high near 41.

Saturday Night

A chance of rain and snow. Snow level 4600 feet. Mostly cloudy, with a low around 32.

Sunday

Rain and snow likely. Snow level 4400 feet. Mostly cloudy, with a high near 42.