Add Yahoo as a preferred source to see more of our stories on Google. Huge hailstones pummeled Henderson, Arkansas, as a severe thunderstorm struck the area on March 15. Footage filmed by Jennifer ...

VDE Americas, a California-based solar technical services and analysis firm, has developed an enhanced version of its proprietary Hail Risk Model incorporating newly analyzed wind speed data.

A thunderstorm is classified as severe if it features tornado potential, wind gusts of at least 58 mph, or hail at least one inch in diameter. Supercell storms with rotation, even without a confirmed ...

Huge hailstones pummeled Henderson, Arkansas, as a severe thunderstorm struck the area on March 15. Footage filmed by Jennifer Goodman shows wind-driven hail hammering a truck and covering the ground.