A correlation exists between a thunderstorm's updraft speeds and the size of hail it can produce. For example, non-severe hail up to nickel size will require updraft speeds less than 47 mph. For ...

Hailstorm formation has remained a mystery, until now.Of the 27 hailstones studied, only one of them displayed tell-tale signs of the hypothesized recycling method, in which hail travels up and ...

The largest hailstone ever recorded in the U.S. occurred in 1970 in Coffeyville, Kan., when a stone weighing 1.6 pounds and measuring 5.5 inches fell, while in 1973 a hailstone hit Cedoux ...

Although unlocking the secret of hailstone formation could help protect people in the path of dangerous storms, it helps to be able to identify that a storm is coming in the first place.

Storms can, at times, grow to be 50,000 to 60,000 feet tall. The quicker and more violently the air rises, the larger the hailstone can grow.

Dozens of researchers are chasing, driving and running into storms to collect fresh hail, getting their car bodies and their own bodies dented in the name of science. They hope these hailstones ...

The recorded hail sizes range from 0.75 inches to 4.5 inches in diameter. No deaths or injuries from hail were reported within that time frame.