Dunlap, TN Hail Storm – September 2026

Dunlap, Tennessee experienced a concluded multi-zone hail event on September 20, 2026, producing radar-detected hail that peaked at 1.91 inches in diameter in the late afternoon. The storm generated two National Weather Service severe thunderstorm warnings across the metro area.

What Happened

The event progressed across the Dunlap metro during the late afternoon and early evening. The NWS issued two severe thunderstorm warnings for the area: one at 5:05 PM CDT reporting 0.75-inch hail (NWS warning only) and a second at 5:41 PM CDT also reporting 0.75-inch hail (NWS warning only). Dual-polarization radar tracked a concentrated hail trajectory through the metro during that interval. Radar-derived hail detections identified a swath of stronger returns corresponding to the late-afternoon warning window. The event is concluded.

Damage Assessment

Observed peak sizes were near golf-ball scale on the NWS object chart (golf ball = 1.75 inches). Hail at or above golf-ball size commonly causes shingle granule loss and surface pitting on vinyl and aluminum siding. Asphalt shingle granule displacement and bruising are likely on older roofing systems. Metal roof panels and gutters can show dents measurable in field inspections. Vehicle sheet metal and exposed trim in Dunlap are at elevated risk for dents and paint damage where hail impacts were dense.

Glass breakage remains less likely below baseball size but is possible for skylights, sunroofs, and older windshield installations when hail strikes at high relative wind. Landscapes and soft-surface plantings in the storm path can show shredding and defoliation in concentrated impact zones.

What Contractors Should Know

Prioritize exterior surveys in the areas within Dunlap that received the strongest radar returns during the 5:05–5:41 PM CDT warning window. Document each roof, siding, and vehicle inspection with dated photos that include a measuring scale or common object for size reference. Record exact addresses, compass bearings of impact patterns, and any attic leaks discovered during interior follow-ups. Note the golf-ball damage profile when tagging affected shingles and panels.

Temporary measures should focus on preventing water intrusion where granule loss, split seams, or dented flashings are present. Small-area tarps and edge flashing repairs reduce immediate risk while claims are processed. For full replacements, itemize shingle type, exposure, and evidence of granule loss. Coordinate with property owners on insurance documentation and provide clear, dated repair estimates tied to observed impact patterns in Dunlap.

Subscribers can view the radar-confirmed hail swath and the associated damage zone on the Strike Map.