Thunderstorms will erupt on the edges of a huge heat dome encompassing the central and eastern United States through midweek.

'Ring of fire' storms threaten edges of massive heat dome Tens of millions of Americans were under heat advisories and warnings as a wave of record temperatures continued to grip much of the country.

The "heat dome" hovering over the eastern half of the U.S. now has a thunderstorm "ring of fire" erupting along its edge. Meanwhile, in the Atlantic, the first tropical storm of the season has ...

The pattern is referred to in the weather community as a "ring of fire," as thunderstorms tend to form along the edges of the heat dome. Within this ring, there can be spotty, individual ...

The "heat dome" hovering over the eastern half of the U.S. now has a thunderstorm "ring of fire" erupting along its edge. Meanwhile, in the Atlantic, the first tropical storm of the season has ...