From NWS
1980: Late season severe thunderstorms moved from west to east across northern Iowa with 70 to 75 mph wind gusts and hail up to baseball size producing widespread crop losses and significant damage. At Ricketts in Crawford County every north and west facing window was broken by the hail. Further north a tornado passed through portions of Spencer leveling several metal warehouse buildings in an industrial park. Later another tornado tracked across north central Iowa passing just south of Leland and Lake Mills while destroying several farm homes and outbuildings. Another storm produced golf ball sized hail between Nora Springs and Rudd in Floyd County.

20 September 1811 → The first U.S. tornado to kill more than ten people took eleven lives at Charleston, SC. It was spawned in a landfalling hurricane. 20 September 1845 → The “Great Adirondack Tornado,” really a family of up to 4 tornadoes, traversed an incredible 275 miles, tearing down many thousands of trees across northern New York and northern Vermont. 20 September 1987 → A vivid rainbow was seen at Fort Simpson, in the Northwest Territories of Canada, during a visit by Pope John Paul II.

Posted under Weather History