The largest recorded hailstone in the U.S. was nearly as big as a volleyball and fell on July 23, 2010, in Vivian, South Dakota. It was 8 inches in diameter and weighed almost 2 pounds. (Link)
According to NOAA, large hailstones can fall at speeds faster than 100 miles (160 kilometers) per hour. They can sometimes contain foreign matter, such as pebbles, leaves, twigs, nuts, and insects.
Nuts? Yes, anything blown around by the winds can create an ice ball.
Tornadoes touched down across the Midwest, killing at least two people, as storms swept across central U.S. At least 20 tornadoes wrecked havoc on Illinois, Missouri, Tennessee and Iowa, according to the Weather Service. One person was killed in Ottawa, Illinois and another was in Perry County, Missouri. The victim in Illinois was killed due to an uprooted tree, while a man died in Missouri after the tornado ripped through his home. Hundreds of people, including many school children, are seeking shelter as tornado warnings are posted in their areas.
“Naplate’s been devastated,” Gov. Bruce Rauner said after touring the damage Wednesday morning. “I understand 64 homes are going to have to be demolished. And the blessing is that more people weren’t hurt.”
Here’s a useful link to current severe weather alerts for the entire USA: