Hail in York County, South Carolina

National Severe Storms Lab relayed multiple public reports of up to golf ball size hail on the north side of Rock Hill.

Scattered to numerous strong to severe, discrete thunderstorm cells developed across the Piedmont during the afternoon ahead of a slow-moving, nearly stationary backdoor cold front. The storms were prolific hail producers, with some producing larger than baseball size hail. New cells often developed upstream of mature cells, then moved over the same areas, such that some locations saw two or more rounds of large hail. This was especially true across portions of Spartanburg, Cherokee, Union, and York Counties.