On Wednesday at 1:57 p.m. a tornado warning was released by the National Weather Service in effect until 2:30 p.m. for Allegheny and Washington counties.

Forecasters use the terms tornado watch and tornado warning when predicting if and where tornadoes are possible in an area. How are they different?

Alerts have been issued across portions of the four states as parts of the U.S. contend with severe weather threats.

The afternoon severe weather update has increased the potential strength of any tornado that could form over the southern third of Lower Michigan. There is a distinct area that likely will get severe thunderstorms this evening and overnight.

Several Indiana counties will remain under a tornado watch until noon and then a wind advisory will remain in effect until 5 p.m. on Wednesday, March 11.

Emergency crews are assessing damage after a tornado touched down, damaging homes in Kankakee, Illinois, amid an outbreak of severe weather.

UNION CITY, MI — The Union Lake community was devastated by a tornado on March 6. Downtown Union City, about 40 miles southeast of Kalamazoo, also saw extensive damage. The National Weather Service gave the tornado an EF3 rating on the Enhanced Fujita scale with wind speeds of 150 mph.

12-year-old Silas Anderson was killed when an EF1 tornado hit the Edwardsburg area on Friday.

The last time a severe thunderstorm warning was issued in Hawaii was in January 2025, making the incoming threat "rare."