Thunderstorms cause hail when strong winds push raindrops upward into the atmosphere where the extremely cold air supercools the water and causes it to freeze into spheres of ice. This can occur several times, with balls... More »

Hail occurs in the summer when strong thunderstorm updrafts carry raindrops high into the atmosphere, where temperatures are below freezing, according to the Atmospheric Sciences Department of Texas A&M University. This ... More »

Hail forms as a result of water droplets being carried above the freezing level by updrafts from thunderstorms. If a hailstone falls toward warmer air at the bottom of a thunderstorm, it thaws. However, if it is caught i... More »

According to USA Today, hail forms when strong updrafts inside a storm blow raindrops back up into sub-freezing layers of the atmosphere. This causes the raindrops to supercool and freeze, in some cases absorbing more mo... More »

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Strong warm updrafts carrying large amounts of moisture interacting with fast-moving cool, dry winds above cause tornadoes when the two air currents begin to swirl around each other and reorient toward the ground. The mo... More »

Dust storms begin as winds lift small particles of dry, loose soil into the air. While larger particles often fall back to the ground quickly, smaller ones can stay aloft for days. These small particles often travel thou... More »

A blizzard requires three things to form: temperatures below freezing at ground level and in the clouds to allow snow to form, enough moisture to allow clouds and eventually snow to form, and a mass of warm air rising ov... More »