Nearly 400,000 people are without power across four states after a series of storms moved across the U.S. over the weekend.

Why It Matters

A late winter storm impacted the Great Lakes region, hitting Michigan and Wisconsin particularly hard with heavy, wet snow and accumulating ice. Further south, thunderstorms equipped with heavy rains and strong winds hit Indiana.

Louisiana and Mississippi also were hit by thunderstorms, and National Weather Service (NWS) meteorologists are warning people in those states of the chance that severe storms could hit throughout Monday.

What To Know

A map by poweroutage.us shows that more than 381,000 people are without power across Michigan, Wisconsin, Indiana and Mississippi on Monday afternoon.

The most widespread outages are in Michigan, with nearly 271,000 people without power. Most outages were reported in Northern Michigan and the Upper Peninsula.

Wisconsin was also strongly impacted, with more than 52,000 people without power. Most outages were reported in the northeastern part of the state.

In Indiana, more than 48,000 people are still without power after storms hit on Sunday. A man died in Valparaiso after strong winds toppled his semi-truck.

Thousands of people are without power in the South as well, with roughly 10,000 outages reported in Mississippi. Most were in the southern part of the state. About 9,000 outages have been reported in Louisiana.

The winter weather-related alerts and warnings have been lifted for Michigan, though NWS meteorologists have issued a special weather statement for the northern part of the state advising of some light snow.

NWS meteorologist Sean Christensen, who works at the Gaylord, Michigan, office, told Newsweek that temperatures will be cold on Monday night. Those without power will be at an increased risk of ruptured pipes or hypothermia.

The ice causing some of the power outages also won’t be able to melt, potentially prolonging impacts.

In the South, severe thunderstorm watches remain in place in parts of southern Louisiana. Most warnings have expired for Mississippi, as the storm system treks east across Alabama and Georgia.

However, more severe weather is on the way for Mississippi, NWS meteorologists warned.

What People Are Saying

NWS office in Gaylord, Michigan, in a special weather statement: “… cold temperatures are expected across the area tonight, as low temperatures will dip well into the teens, and perhaps even upper single digits in the typical colder spots across interior northern lower Michigan. This will lead to an anomalously high risk for cold weather impacts for those enduring long duration power outages, such as frozen pipes, and may [potentially] be life-threatening for those who do not have an adequate source of heating.”

NWS office in Jackson, Mississippi: “Severe weather is possible across the region during the afternoon and evening hours on both Wednesday and Thursday.”

What Happens Next

Severe storms will again hit the South later this week, potentially causing more power outages. Meanwhile, a winter storm watch was issued for incoming snow for Minnesota, Wisconsin, North Dakota and South Dakota from Tuesday night into Wednesday.