Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

The atmosphere was primed with warm, humid and unstable air in southern Wisconsin on Sunday. A cold front tracking south through Wisconsin triggered numerous thunderstorms across the state. Many thunderstorms produced large hail and damaging winds. The storms were mainly confined to eastern portions of the forecast area. Below is a loop of radar images showing the progression of storms across the area.

Radar Loop

Most of the severe thunderstorms reports Sunday were that of large hail, though there were a few reports of wind damage. Below is a map of storm reports received through 10 pm Sunday. Here is link to browse through the lastest Local Storm Reports.