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 >

A low pressure system will bring wintry precipitation to the Northland ahead of Thanksgiving, likely leading to travel impacts. Precipitation begins as rain late Monday, turns to a rain/snow mix on Tuesday, and then transitions to all snow Tuesday night into Wednesday. Some of this snow could be heavy for some areas, particularly Tuesday evening into Wednesday morning. Lake-effect snow lingers in parts of the South Shore into Thursday. Winter Storm Watches have been issued for Tuesday into Wednesday!
Snow begins to mix in with rain on Tuesday, changing over to all snow by Tuesday night and continuing into Wednesday. South Shore lake-effect lingers into Thursday. Snow amounts are still likely to change, but most of the Northland should see accumulating snow. The highest snow amount probabilities are most favored in northern Minnesota and for portions of the South Shore, particularly Iron County, Wisconsin.
After a mild start to the week, colder air arrives starting Wednesday on the back side of a departing low pressure system, with these cold temperatures lingering through at least next weekend. Expect high temperatures in the 20s with lows in the teens to single digits. Overnight into early morning wind chills in the single digits to around zero degrees are likely.