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

Winter Weather Advisory in effect from December 10, 04:00 AM MST until December 11, 08:00 PM MST

Current conditions at

Sidney-Richland (KSDY)

Lat: 47.7°NLon: 104.2°WElev: 1985.0ft.

Clear

19°F

-7°C

Humidity	73%
Wind Speed	NNW 16 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	12°F (-11°C)
Visibility	10.00 mi
Wind Chill	4°F (-16°C)
Last update	09 Dec 11:20 PM MST

More Information:

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

Extended Forecast for

13 Miles WSW Trotters ND

Winter Weather Advisory December 10, 04:00am until December 11, 08:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 12 °F
Partly Cloudy
Wednesday
High: 28 °F
Cloudy then
Snow Likely
and Patchy
Freezing Fog
Wednesday Night
Low: 27 °F⇑
Wintry Mix
Likely and
Patchy
Blowing Snow
Thursday
High: 36 °F
Rain/Snow
Likely and
Patchy
Freezing Fog
Thursday Night
Low: -4 °F
Chance Snow
and Patchy
Blowing Snow
Friday
High: 0 °F
Slight Chance
Snow
Friday Night
Low: -10 °F
Snow
Saturday
High: 1 °F
Slight Chance
Snow then
Partly Sunny
Saturday Night
Low: -10 °F
Mostly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 12. Northwest wind 16 to 21 mph decreasing to 9 to 14 mph after midnight.

Wednesday

Snow likely, mainly after 3pm. Patchy freezing fog between 2pm and 3pm. Cloudy, with a high near 28. North wind 5 to 15 mph becoming southeast in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Wednesday Night

Snow likely, possibly mixed with freezing rain before 8pm, then a chance of freezing rain between 8pm and midnight, then a chance of rain after midnight. Patchy blowing snow between 8pm and 11pm. Patchy fog after 4am. Patchy freezing fog between 11pm and 4am. Otherwise, cloudy, with a temperature rising to around 33 by 4am. South wind 13 to 17 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than a half inch possible.

Thursday

Rain and snow likely before noon, then a chance of snow. Patchy freezing fog after 11am. Cloudy, with a high near 36. North northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

A 30 percent chance of snow, mainly before 11pm. Patchy blowing snow after 8pm. Patchy freezing fog before 8pm. Cloudy, with a low around -4. North northwest wind 18 to 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

Friday

A 20 percent chance of snow after 11am. Cloudy and cold, with a high near 0. North northwest wind 8 to 18 mph, with gusts as high as 30 mph.

Friday Night

Snow. Low around -10. Northeast wind 7 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday

A 20 percent chance of snow before 11am. Mostly cloudy, with a high near 1. North northeast wind 7 to 10 mph becoming west southwest in the afternoon.

Saturday Night

Mostly cloudy, with a low around -10. Southeast wind 7 to 13 mph, with gusts as high as 20 mph.

Sunday

Partly sunny, with a high near 28. South wind around 14 mph, with gusts as high as 22 mph.

Sunday Night

Partly cloudy, with a low around 11. South southwest wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 22 mph.

Monday

Mostly sunny, with a high near 27.

Monday Night

Mostly cloudy, with a low around 18.

Tuesday

Partly sunny, with a high near 37.