Supercell thunderstorms are dangerous severe storms that unleash destructive hail, roaring winds and powerful tornadoes. They are responsible for nearly all of the United States’ most violent ...

More severe weather is expected to hit North Carolina and the Piedmont Triad over the third weekend in July. There is plenty of humid July air to fuel storms. Our afternoon storm chances have been ...

Thunderstorms need moisture, energy — which meteorologists call instability — and some sort of lift to form. Usually, the lift comes from cold and warmer air masses colliding along a line called a ...