The word “supercell” may sound like hype, but they are real thunderstorms with rotating updrafts that can have serious ...

Hail forms in strong thunderstorm clouds known as cumulonimbus clouds. Within these towering cloud formations, updrafts and downdrafts play a critical role in the development of hailstones.

A warm and humid air mass will help create on-and-off rain and storms much of the day. Lightning delays are possible across ...

There are thousands of thunderstorms in the United States each year, but only a few become strong enough to spin up a tornado ...

These gigantic storms contain volatile updrafts and downdrafts that can move at speeds of 100 mph. The height of these storms also can tower to more than 10 miles in the air. Even if you stacked ...

These varying winds allow the updrafts to remain displaced from the downdraft, which allows the storms to intensify. The second ingredient you need is a lifting mechanism, such as a cold front ...

(Wind) Shear: Thunderstorms have rising and sinking currents of air called updrafts and downdrafts. Downdrafts usually are laden with the thunderstorm's rain. An ordinary mid-summer thunderstorm ...

Thunderstorms are especially problematic when it comes to worsening allergy symptoms. Lightning, large raindrops, strong winds, as well as storm updrafts and downdrafts can rupture pollen grains ...

With supercell structure, these storms will rapidly develop with rising, warm updrafts of unstable air. The amount of instability in the atmosphere will dictate how quickly these storms develop ...

A few showers can bring temporary relief to allergy sufferers, but the reprieve is short-lived and often followed by worsening symptoms.