A Multi-Day Severe Weather Threat Could Disrupt Labor Day Plans

The northern rim of a building heat dome will host the next wave of severe weather this week in the U.S. Read on for a closer look at when and where you should expect thunderstorms to pop up as the calendar flips from August to September.

Storms Set Up Along Northern Edge of Heat Dome

Several rounds of severe thunderstorms are forecast to erupt along the northern flank of a heat dome that is setting up shop across the Plains and into the Southeast this week. The latest forecast models signal that the storms will fire up in a zone from the Dakotas and Nebraska to the east into New York, New England, Delaware, Maryland, New Jersey, and Virginia.

While most of the storm activity will happen during the afternoon and evening hours, you cannot count out a random morning or overnight thunderstorm. A good deal of moisture coming along with the storms will raise the threat of flash flooding. In addition, air travelers will want to be prepared for the likelihood of ground stops and flight delays.

Widespread storms on Tuesday will stretch for almost 1,500 miles from South Dakota and Nebraska all the way into the coastline in the Northeast. Many of the nation's most populated cities could see Tuesday's impacts, including Omaha, Minneapolis, Detroit, Philadelphia, Buffalo, New York City, and Washington, D.C. Likely impacts include high winds and heavy rain.

As is typical with these atmospheric setups, the areas closer to the core of the heat dome will not see any moisture.