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

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Mostly Cloudy and Breezy

25°F

-4°C

Humidity	80%
Wind Speed	NW 23 G 35 mph
Barometer	29.99 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	10°F (-12°C)
Last update	10 Dec 3:36 am CST

More Information:

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

Extended Forecast for

16 Miles NW Agar SD

Winter Weather Advisory December 10, 05:00pm until December 11, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 19 °F
Partly Cloudy
and Blustery
Wednesday
High: 24 °F
Mostly Sunny
then Slight
Chance Snow
Wednesday Night
Low: 18 °F
Chance Snow
then Wintry
Mix Likely
Thursday
High: 34 °F
Rain/Freezing
Rain Likely
then Chance
Rain
Thursday Night
Low: 7 °F
Blustery.
Chance
Rain/Snow
then Slight
Chance Snow
Friday
High: 15 °F
Slight Chance
Snow and
Blustery
Friday Night
Low: 0 °F
Snow
Saturday
High: 7 °F
Chance Snow
then Partly
Sunny
Saturday Night
Low: -6 °F
Mostly Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 19. Blustery, with a north northwest wind 26 to 29 mph, with gusts as high as 43 mph.

Wednesday

A slight chance of snow after 5pm. Increasing clouds, with a high near 24. North northwest wind 13 to 18 mph becoming east northeast 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 10%.

Wednesday Night

A chance of snow before 2am, then a chance of snow and freezing rain between 2am and 3am, then freezing rain and sleet likely after 3am. Cloudy, with a low around 18. Southeast wind 8 to 14 mph. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

Thursday

Freezing rain likely before 11am, then a chance of rain. Cloudy, with a high near 34. South southeast wind 10 to 14 mph becoming north northwest in the afternoon. Chance of precipitation is 60%. New ice accumulation of less than a 0.1 of an inch possible.

Thursday Night

A chance of rain and snow before 8pm, then a chance of snow. Cloudy, with a low around 7. Blustery, with a north northwest wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Friday

A slight chance of snow after 11am. Cloudy, with a high near 15. Blustery, with a north northwest wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

Friday Night

Snow, mainly after 11pm. Low around 0. East northeast wind 8 to 10 mph. Chance of precipitation is 80%.

Saturday

A chance of snow before 11am. Mostly cloudy and cold, with a high near 7. North wind around 10 mph. Chance of precipitation is 50%.

Saturday Night

Mostly cloudy, with a low around -6. Northeast wind 7 to 11 mph becoming southeast after midnight.

Sunday

Mostly sunny, with a high near 20.

Sunday Night

Partly cloudy, with a low around 11.

Monday

Mostly sunny, with a high near 33.