The polar vortex is stirring up, bringing the earliest hints that the weather is changing with the new fall season. In the short term, this means gradual cool-downs and a more active storm ...

The polar vortex is beginning to stir, signaling the first signs of seasonal change. Here's when to expect the first frost in ...

In Michigan, La Niña winters are often marked by stronger winds crossing the Great Lakes, which can fuel heavy lake-effect snow.

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. When will Wisconsin see its first ...

The National Weather Service in Bismarck has confirmed at least 15 tornadoes touched down across central North Dakota on Sept ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. What does that mean for Vermont?

North Dakota farmers who suffered damage during intense storms in early August will be able to tap into a state aid program ...

An intense storm that swept across central North Dakota on Sunday moved the state past a previous record for tornadoes in a year.

A rare glimpse into the wintry conditions of the Mars north polar vortex has shown that temperatures inside the vortex are ...