Seneca, SC Hail Storm – June 2026

A hail-producing storm tracked through Seneca, South Carolina, on June 1, 2026, producing stones up to 1.28 inches and triggering a series of NWS warning-area alerts across the metro in the late afternoon. The storm concluded the same day after moving northeast out of the county.

What Happened

NWS issued six warning-area alerts for hail between 2:23 PM EDT and 4:45 PM EDT as the cell moved across the Seneca metro. The sequence of NWS warning-area alerts and their hail estimates was:

• 2:23 PM EDT – 1.00-inch hail – NWS warning only
• 3:11 PM EDT – 1.25-inch hail – NWS warning only
• 4:03 PM EDT – 1.00-inch hail – NWS warning only
• 4:26 PM EDT – 1.00-inch hail – NWS warning only
• 4:43 PM EDT – 0.75-inch hail – NWS warning only
• 4:45 PM EDT – 0.75-inch hail – NWS warning only

Dual-polarization radar showed repeated cores crossing the city during a late-afternoon corridor of convection. A trained observer reported quarter-size hail near Seneca at 3:12 PM EDT, with the time noted as estimated from radar. Radar-indicated hail detections and the observer report align on several pulse cycles as the storms propagated northeastward through the metro.

Damage Assessment

Local spotter information and radar-derived impact indicators show limited, scattered surface effects concentrated in the central Seneca area and adjacent county roads during the late-afternoon event. The spotter-verified observation coincides with radar echoes that moved through residential blocks just west of the city center. Public reports logged to the NWS indicate isolated, short-duration falls rather than widespread continuous coverage.

No NWS local storm report listed major structural collapse or large-area treefall linked to this storm. Reported effects were concentrated and brief, matching the storm's pulse nature as it redeveloped and crossed the metro several times between mid-afternoon and early evening. Vehicle panel dings and minor yard vegetation bruising are the primary impacts consistent with the radar and observer record for locations along the storm's path.

Field evidence and warning-area footprints place the most likely surface impacts along streets and rural routes that lay beneath the storm cores between about 2:20 PM and 4:50 PM EDT. Insurance and municipal crews working in those corridors should prioritize visual checks for dented metal, cracked windshield chips, and displaced roof granules on exposed structures.

What Contractors Should Know

Scope inspections to the Seneca city center and the county roads that intersected the storm track during the late-afternoon window. Start with vehicle fleets and exposed metal surfaces in municipal lots where short-duration but high-density falls often cause concentrated panel damage. Use handheld magnets and compressed air to clear gutters before roof inspections to reveal granule loss.