National Weather Service United States Department of Commerce

Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.

A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest Monday into Wednesday. Read More >

Rain will be moving into north central SD Monday evening and will transition to a rain/snow mix then snow Tuesday morning. Strong winds will be gusting Tuesday, which could cause blowing snow and lower visibilities in areas. Additionally, temperatures will start to drop Tuesday to below normal by Thanksgiving. If you are traveling, make sure to be prepared for winter is on its way.
Once the snow starts to fall Tuesday, there are higher chances for one inch of snow over northern SD counties, with portions of Marshall, Day, Roberts and Traverse Counties having 30% chance for 4 inches or more of snow. There will be higher snowfall amounts to the north in ND and the northern half of MN. Be sure to stay up to date on the latest forecast, especially if you are traveling.
Northwest winds will increase across central SD during the late Monday night/early Tuesday morning overnight hours. These strong winds will spread east through the morning becoming rather gusty by mid to late morning across northeast SD and west central MN. These winds will combine with falling snow leading to blowing snow and reduced visibilities. In addition to this, the combination of strong winds and dry conditions will lead to high to very high grassland fire danger across south central SD on Tuesday.
With winter conditions likely to occur in the next few days, its a good idea to make sure your car is ready by making sure its running well and has an emergency supply kit packed. If you need to travel, make sure to check the weather forecast and road conditions before you head out.