Chicago and Milwaukee face another day of severe weather threats as storms stretch from Texas to New England. The Storm Prediction Center warns of a complex situation with elevated tornado risks across the Great Lakes region. More than 250,000 homes and businesses remain without power after Wednesday's outbreak, creating significant economic disruption.

Warm, moist air blankets the eastern U.S., creating ideal conditions for severe thunderstorms. Meteorologists expect multiple storm rounds, with the most substantial threats hitting Thursday afternoon and evening. The same weather pattern driving dangerous heat is fueling these destructive systems across multiple states simultaneously.

Major Northeast cities including New York, Philadelphia and Baltimore face elevated risks for large hail and damaging winds. Forecasters warn of intense rainfall rates of one to two inches per hour, raising flash flood concerns in urban areas. Business operations, transportation and utilities will likely face continued strain.

At least one fatality occurred when a tree struck a 54-year-old man at a Des Moines homeless encampment Thursday morning. The severe weather season continues with typical summer threats, but these storms demonstrate the cascading impacts on infrastructure, commerce and daily life across multiple states.