The right mix of hot, humid, rising air can produce some of the most powerful weather phenomena on the planet.

If you’ve been around Western Washington in summertime, you’ve certainly seen big, billowing clouds bubbling up over the ...

During springtime in Houston, a steamy afternoon can quickly give way to towering cumulonimbus clouds overhead. Often called "popcorn storms," these cells bubble up quickly and fade just as fast. But ...

Add Yahoo as a preferred source to see more of our stories on Google. A week ago, Milwaukee and much of Wisconsin was slammed by severe weather – and more often than not, the storms rolled through ...

How Thunderstorms Form Hail 13 On Your Side Chief Meteorologist George Lessens explains how thunderstorms form and grow hailstones.

A derecho, or straight-line wind, develops when a line of thunderstorms continues producing powerful downbursts over many ...

A week ago, Milwaukee and much of Wisconsin was slammed by severe weather – and more often than not, the storms rolled through late in the day or overnight. That isn't unusual, though, because ...