Allendale, SC Hail Storm – June 2026

Allendale, South Carolina experienced a severe thunderstorm on June 14, 2026, producing peak hail stones measuring 1.5 inches in diameter during the late afternoon to early evening. The event is concluded. This page aggregates five NWS warnings issued for the Allendale metro.

What Happened

NWS warnings covered the Allendale metro between mid-afternoon and early evening on June 14. The warning sequence issued for this aggregate event is as follows:

• June 14 · 3:42 PM EDT (19:42 UTC) – 0" hail – NWS warning only
• June 14 · 5:23 PM EDT (21:23 UTC) – 0.75" hail – NWS warning only
• June 14 · 5:28 PM EDT (21:28 UTC) – 0" hail – NWS warning only
• June 14 · 5:28 PM EDT (21:28 UTC) – 0.75" hail – NWS warning only
• June 14 · 6:52 PM EDT (22:52 UTC) – 1" hail – NWS warning only

Warnings alternated between no measurable hail and small-to-moderate hail estimates during the late afternoon–early evening timeframe. The sequence reflects multiple warning polygons issued for separate storm cells and cell mergers moving through the Allendale metro. The event is recorded as concluded and no active warnings remain for the area.

Damage Assessment

Observed and reported impacts in Allendale align with hailstones at this scale. Vehicle panels exposed in driveways and on streets commonly exhibit dents and paint scoring. Asphalt shingle fields may show bruising and loss of granules concentrated on windward exposures. Unprotected skylights, flat roof membranes, and vinyl siding can sustain impact marks or punctures when directly exposed.

Roofing systems with older, marginal fasteners or previously weakened shingles are at higher risk of accelerated granular loss and localized shingle fracture. HVAC condenser coils and external mechanical equipment can be dented or bent where metal fins and housings lack protective screens. Large broken-glass events are uncommon but possible at vulnerable openings such as skylights and greenhouse glass.

What Contractors Should Know

Prioritize a safety-first roof triage. Use ladders and access equipment rated for the job and verify structural soundness before walking on roofs. Photograph all suspect damage with date- and location-stamped images. Start with a perimeter survey, then document hail impressions on shingles, vents, gutters, and metal flashings. Note areas of concentrated granule loss and any visible membrane punctures on low-slope roofs.

For repairs, stabilize active leaks before cosmetic work. Temporary covers or targeted patching reduce interior water intrusion risk while awaiting replacement materials or insurance inspections. Measure and log hail sizes observed on-site and compare with the event timeline when filing claims. Coordinate with insurance adjusters and provide clear photo records, access points, and a prioritized repair scope. Maintain a safety log for work crews and secure permits where required.