Seneca, SC Hail Storm – August 2026

A hail-producing storm tracked through Seneca, South Carolina on August 22, 2026, producing 1.00-inch stones in the late afternoon. The event generated multiple spotter reports and two NWS warnings for radar-detected hail.

What Happened

NWS issued the first warning at 5:06 PM EDT (21:06 UTC) for radar-indicated nickel-size hail within the Seneca warning area. Spotters reported nickel-size hail near Seneca at 5:08 PM EDT (21:08 UTC). A corrected spotter time for a 2 SSW Seneca report was filed at 5:30 PM EDT (21:30 UTC). A second NWS warning followed at 5:34 PM EDT (21:34 UTC). Two mPING submissions at 5:36 PM EDT (21:36 UTC) described quarter-size stones near the same corridor.

Radar returns produced a concentrated hail signature that tracked roughly with the timed field reports. NWS products for this event carried a warning-only confidence note rather than an explicit ground-truth confirmation. Ground observers supplied spotter-verified detail that refined the timeline and peak stone size within the warning area.

Damage Assessment

Field reports show limited, localized surface impacts focused near 2 SSW Seneca and adjacent residential blocks. Observers logged vegetation bruising and isolated cosmetic damage to vehicle surfaces in the immediate vicinity of the recorded hail reports. No large-scale structural failures or widespread roof loss were reported in the available local storm reports.

Reports at 5:08 PM EDT and the two mPING submissions at 5:36 PM EDT place strike locations on neighborhood streets and properties east of the highway corridor into town. Radar-aligned hail echoes concentrate on that same swath inside the NWS warning area. Insurance-scale damage in call logs to local contractors was low in number and limited to minor panel dents, chipped siding, and bruised landscaping where spotters recorded impacts.

What Contractors Should Know

Inspect roofs in the corridor east of the highway and in neighborhoods surrounding 2 SSW Seneca first. Focus on asphalt shingle granule loss, soft-metal edge deformation, and localized shingle cracking near ridge and eave intersections. Document exact GPS locations when you photograph damage. Spotter times at 5:08 PM EDT and 5:36 PM EDT provide a narrow time window for correlating observed dents to this event.

Check vehicles, outdoor HVAC units, and exposed soft metals on porches and gutters along the same street segments cited in the reports. Panel dents on cars and gouges on condenser housings are commonly visible indicators in events with this damage profile. Record serial or tag numbers for units you inspect and include scale references in imagery.

Plan a targeted canvass rather than a wide-area sweep. The radar signature and field reports indicate a confined hail swath inside the NWS warning area. Prioritize direct-contact inspections within that corridor and maintain clear notes on addresses where no damage was found as well as where minor impacts occurred.