Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Current conditions at

BIG SHEEP MOUNTAIN (LCFM8)

Lat: 47.02819°NLon: 105.80472°WElev: 3172.0ft.

28°F

-2°C

Humidity	99%
Wind Speed	SSE 11 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Wind Chill	18°F (-8°C)
Last update	10 Dec 08:08 AM MST

More Information:

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

Extended Forecast for

10 Miles NW Rock Springs MT

Winter Storm Watch December 11, 08:00pm until December 13, 11:00am

Winter Weather Advisory until December 11, 08:00pm

Click here for hazard details and duration

Winter Storm Watch

Winter Weather Advisory

Winter Weather Advisory until December 11, 08:00pm
NOW until 8:00pm Thu
Winter Weather Advisory
Today
High: 42 °F
Snow Likely
then
Rain/Snow
Tonight
Low: 40 °F
Rain Likely
Thursday
High: 42 °F⇓
Rain Likely
then
Rain/Snow
Likely and
Breezy
Thursday Night
Low: 2 °F
Chance Snow
Friday
High: 9 °F
Snow Likely
Friday Night
Low: -2 °F
Heavy Snow
Saturday
High: 9 °F
Chance Snow
then Partly
Sunny
Saturday Night
Low: 0 °F
Mostly Cloudy

Detailed Forecast

Today

Snow before 2pm, then rain and snow likely between 2pm and 3pm, then a chance of rain after 3pm. High near 42. South southeast wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Rain likely, mainly between 11pm and 3am. Cloudy, with a steady temperature around 40. West wind 11 to 17 mph. Chance of precipitation is 60%.

Thursday

Rain likely before 3pm, then rain likely, possibly mixed with snow between 3pm and 4pm, then snow likely after 4pm. Cloudy, with a temperature rising to near 42 by 11am, then falling to around 27 during the remainder of the day. Breezy, with a west wind 16 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night

A 40 percent chance of snow. Cloudy, with a low around 2. Wind chill values between -10 and zero. North wind 14 to 20 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

Friday

Snow likely, mainly after 11am. Cloudy, with a high near 9. Northeast wind 7 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow. The snow could be heavy at times. Low around -2. East northeast wind 7 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

Saturday

A 30 percent chance of snow before 11am. Mostly cloudy, with a high near 9. North northeast wind 7 to 10 mph becoming east southeast in the afternoon. Little or no snow accumulation expected.

Saturday Night

Mostly cloudy, with a low around 0. Southeast wind 7 to 10 mph.

Sunday

Partly sunny, with a high near 38. Southwest wind 11 to 13 mph, with gusts as high as 18 mph.

Sunday Night

Partly cloudy, with a low around 22. West southwest wind around 11 mph.

Monday

Mostly sunny, with a high near 37. Southwest wind around 10 mph.

Monday Night

Mostly cloudy, with a low around 27.

Tuesday

Partly sunny, with a high near 44.