Greybull, WY Hail Storm – July 2026

On July 7, 2026, a severe thunderstorm produced up to 1.41-inch hail in Greybull, WY. The event was short-lived and concluded the same evening.

What Happened

The storm moved through the Greybull metro area in the early evening. The National Weather Service issued a severe thunderstorm warning at 9:35 PM MDT (03:35 UTC) for 1-inch hail based on dual-polarization NEXRAD hail detection. Radar-detected hail extended across the single warning area for Greybull, WY. No additional NWS alerts were issued for this cell. Local agencies list the event as concluded.

Damage Assessment

Hail of this diameter typically causes denting to vehicle body panels and aluminum siding. Roof granule loss is likely on older three-tab shingles; architectural shingles often show cosmetic bruising and localized granule loss. Skylight glazing and soft metal trim may crack or deform if struck directly. Exterior furnishings, solar panels, and exposed HVAC condenser fins can sustain visible damage when struck by hail this size.

Observed radar signatures indicate a concentrated path across the metro area rather than broad, scattered coverage. Where hail accumulation exceeded a few minutes of sustained fall, expect greater buildup of broken glass and granules in gutters and downspouts. No spotter-verified structural collapses or widespread catastrophic failures are present in the available reports.

What Contractors Should Know

Begin with an exterior documentation pass. Photograph vehicle dents, siding impacts, and roof perimeter granule loss from public vantage points. Prioritize inspection of low-slope and south-facing roof planes first, then move to hips and ridges. Check skylights, metal flashings, gutters, and HVAC condensers for deformation. Record timestamps and coordinates for each damage photo to match claims timing.

For roofing crews, look for concentrated shingle loss and exposed mat on older systems. Small bruises and torn granules often accelerate wear but may not require immediate full replacement on newer architectural shingles. Recommend targeted repairs where flashing or ventilation components are compromised. If filing insurance claims, provide mapped impact points and progressive repair estimates. Coordinate vehicle and glass repairs separately and log OEM part numbers when replacements are proposed.

Access the Strike Map for precise hail track points and the paid damage zone data.