McDonald, TN Hail Storm – August 2026

McDonald, TN saw hail up to 1.44 inches on August 7, 2026 as a multicell storm is tracking through the area and continuing to produce hail.

What Happened

The storm began impacting the McDonald, TN area in the mid-afternoon and is currently active. NWS products include three separate alerts tied to this event. At 3:16 PM CDT the first radar-derived alert reported 1.23-inch hail based on dual-polarization radar detection. One minute later, at 3:17 PM CDT, a second radar-derived alert indicated 1.45-inch hail from the same radar analysis stream. In the late afternoon, at 4:49 PM CDT, the NWS issued a warning-only alert reporting 1.00-inch hail for portions of the metro area. The first two alerts are radar-detected hail reports. The third alert is an NWS warning-only report without a matching radar-derived hail estimate. Storm cells are moving through multiple zones within the aggregate area and conditions may still change.

Damage Assessment

Hail reported by radar ranges roughly between 1.0 and 1.45 inches across the multi-zone aggregate report. Hail near 1.0 inch commonly causes minor cosmetic damage to painted surfaces, trim, and unsecured outdoor items. Hail at or above 1.25 inches increases the risk to older asphalt shingles, unprotected vents, and vehicle clearcoat. Areas that received the larger radar-detected returns near 1.45 inches face higher odds of denting to aluminum siding and vehicle panels and localized shingle impact.

Visible impact patterns depend on hail density, wind-driven angle, and exposure. Roof coverings less than five years old and impact-resistant materials show greater resistance, while older or already-weathered roofing is more likely to sustain granule loss or denting. Vehicle fleet owners should prioritize inspection of parked vehicles in the mapped path for panel dents and glass pitting. Document conditions with time-stamped photos and location data tied to the alert times where possible.

What Contractors Should Know

Field teams should expect mixed impact levels across the aggregate area. Start with quick visual surveys of roof edges, vents, skylights, and rooftop-mounted equipment. Prioritize safety—watch for downed limbs and wet, slippery surfaces. Record GPS coordinates and link them to the nearest alert time stamp when logging damage. Where radar-detected returns were stronger, schedule detailed roof inspections and hail-sample measurements to support claims evaluation.

For vehicles and exterior trim, check for paint cracking, dent patterns on horizontal surfaces, and damage to exposed metal. Use standardized checklists and photograph a minimum of four angles per asset plus wide shots showing surrounding context. Maintain conservative staging of repair materials until detailed assessments confirm scope. Coordinate with property managers and insurers about temporary tarping only when necessary and documented.