The National Weather Service confirmed three EF-0 tornadoes in Illinois and Indiana, and an EF-1 tornado in Indiana.

One question you may ask yourself is how tornadoes are measured? It's with the Enhanced Fujita (EF) scale which is gives a ...

At least four tornadoes hit the Chicagoland area overnight amid severe storms, according to the National Weather Service.

A tornado rated EF-2 by the National Weather Service struck the north side of the Orlando metro area this morning, causing ...

The National Weather Service has confirmed at least four tornado touchdowns occurred in the Chicago area during a severe weather outbreak Friday.

The National Weather Service has confirmed a total of at least four tornadoes from the severe weather system that moved ...

The National Weather Service confirmed that the tornado, which packed winds of up to 115 mph, touched down around 9:40 a.m.

Large and destructive tornadoes are carving paths of destruction across the South for the second day in a row.

At least 30 people died as violent weather swept the country on Friday and Saturday, and the threat isn't over.

The National Weather Service confirmed Monday's tornado had peak winds of 120 mph, earning it the classification of EF-2.