Matthew Cappucci

Long-track intense tornadoes are possible after devastating twisters tore through parts of Nebraska and Iowa on Friday. Severe storms are possible as far north as Michigan.

Cities that could be affected by violent storms Friday and/or Saturday include Dallas, Oklahoma City, Tulsa, Wichita, Kansas City, Mo., Omaha, Des Moines and Milwaukee.

Tornadoes tore through Lincoln and Elkhorn in Nebraska on Friday before heading into Iowa. Severe weather is expected to continue through the weekend.

Four straight days of severe weather will bring the chance of tornadoes, some strong, in the central states.

Severe storms could erupt on four straight days between Thursday and Sunday affecting areas from Texas to the western Great Lakes.

From Thursday to Monday, severe thunderstorms are possible daily.

The eruption may even have injected aerosols into the stratosphere.

The Storm Prediction Center has already drawn a Level 3 out of 5 enhanced risk of severe weather around eastern Iowa, northeastern Missouri and northwestern Illinois, and includes Des Moines, Cedar Rapids and Iowa City.

The system unleashed destructive tornadoes and serious flooding, while cutting power to hundreds of thousands.

Storms with hurricane-force winds have cut power to about 230,000 customers from Texas to Alabama, including 125,000 in Louisiana.