The National Weather Service says a hailstone that fell south of the South Dakota capital of Pierre might be a world record.
Meteorologist Jim Scarlett says the chunk of ice landed near the town of Vivian Friday night. He says members of the National Climate Extremes Committee will meet this week to evaluate the stone and determine whether it is a record.
The record-holding hailstone fell in Aurora, Nebraska, on June 22, 2003. It was 7 inches in diameter with a circumference of 18.75 inches.
The Vivian hailstone unofficially measured 8 inches in diameter with an 18.5-inch circumference.