Northeast: Heat, Then Thunderstorms

Monday morning

This video shows why the hot weather now spreading into the Northeast will be cut down later in the week.

Tomorrow, a cold front will cross the Great Lakes, then reach the Northeast by the end of Wednesday. Today, a southwesterly current of very warm air is evident on the surface pressure map.

The flow aloft over the Great Lakes and Northeast is stronger than average for early July, and this could translate into strong straight-line winds in any of the stronger thunderstorms.