At least 3 dead, hundreds of thousands still without power as storms slam Michigan, Indiana, Pennsylvania

Heavy rain forces a weather delay for a game Monday between the St. Louis Cardinals and the Cincinnati Reds at Great American Ball Park in Cincinnati.

A wall of storms that roared through a swath of the Midwest and South with heavy rains, hail and wind gusts of up to 80 mph killed at least three people and knocked out power to more than 1 million homes and businesses at the height of the tempest.

The storms could bring more havoc to the East later Tuesday and beyond. Downpours and dangerous wind gusts were possible in Washington, Baltimore and Philadelphia, Accuweather warned.

In Michigan, police in Monroe said a 14-year-old girl died after touching a downed power line. About 60 miles north in the Detroit suburb of Warren, an 8-year-old boy was severely burned after trying to swing from a hanging live wire, the Detroit Free Press reported. He and his brother were hospitalized. The storm knocked down about 3,000 power lines in the state, the newspaper said.

In Ohio, Toledo Fire and Rescue said a woman was killed when a tree fell on her. In Arkansas, an 11-year-old boy was swept into a storm drain and died, authorities said, and a 47-year-old woman who tried to help him was rescued and hospitalized.

Related video: State of emergency in Mississippi following heavy rains

More than 500,000 power customers were in the dark in Indiana during the worst part of the storm Monday night, although the number had dropped to about 4,000 by Tuesday afternoon. In Michigan, 361,000 homes and businesses remained without power by 2 p.m., according to the tracking website PowerOutage.

Consumers Energy, which provides electricity to more than half of Michigan residents, said 350 crews were working to restore power. Downed trees, limbs and power lines were reported in more than three dozen counties.

The company said it hoped a majority of homes and businesses would have power restored by Wednesday night.

"Yesterday’s severe storms packed a big punch as they pushed through our state," Consumers Energy said in a Facebook post. "Today’s dry and hazard-free weather conditions are on our side."

Indiana and Michigan saw some of the strongest winds, including 81 mph gusts in Lowell, Indiana, 70 mph gusts at Detroit's City Airport and a 66 mph gust reported in Holland, Michigan, according to AccuWeather data. Hail and downed trees were reported in several states; large hail was reported in central Illinois.

Accuweather said the storm system rolled from Iowa to Ohio before heading eastward into Pennsylvania, pounding the region with bursts of heavy rain and intense wind gusts. Tens of thousands of outages were reported in Pennsylvania and New York.

Mississippi Gov. Tate Reeves declared a state of emergency after excessive rainfall damaged one of Jackson’s water-treatment plants and caused low water pressure through much of the city. He also warned the capital city's 150,000 residents not to drink the water because it's unsafe.

Contributing: The Associated Press

This article originally appeared on USA TODAY: Storms leave 3 dead, knock out power to 1 million in Midwest