Superior, AZ Hail Storm – September 2026

Superior, AZ experienced a multi-zone hail event on September 14, 2026, during the early evening. Radar data show a maximum hail diameter of 1.17 inches as storms tracked through the metro area.

What Happened

A series of convective cells moved across the Superior, AZ metropolitan area on September 14, 2026. The event produced two NWS warnings for 0.75-inch hail issued at 6:46 PM MST (01:46 UTC) and 8:07 PM MST (03:07 UTC). Each advisory used a NWS warning area to cover the expected storm path and listed 0.75 inches as the hail size of concern with NWS warning only confidence. Storm status is concluded.

Radar analysis identified a larger hail echo within the aggregate report. The peak radar-derived hail diameter measured 1.17 inches. The multi-zone report aggregates the warning-area sequence and the radar-derived hail footprint across the metro.

Damage Assessment

Hail sizes reported in the warning area and detected by radar ranged from 0.75 inches to 1.17 inches. A 0.75-inch hailstone equals a U.S. penny (0.75 in). A 1.17-inch stone is slightly larger than a U.S. quarter (1.00 in) and well below a golf ball (1.75 in).

Typical impacts for this size range in Superior, AZ include cosmetic dents to vehicle body panels and dings to aluminum trim. Asphalt shingle roofs may show localized granule loss and bruising. Older or weathered shingles are more at risk of shingle fracture and accelerated wear. Glass features such as skylights and unprotected solar panels can crack if existing micro-cracks or installation stress points are present. Lawn furniture, exterior lighting, and unshielded HVAC equipment are vulnerable to surface pitting and denting.

If you observed roof granule accumulation in gutters, cracked solar glass, or multiple dented vehicles within the Superior warning area, document locations and capture time-stamped photos before repairs.

What Contractors Should Know

Inspect roofs for concentrated granule loss, shingle edge cracking, and ladder-accessible damage on low-slope sections. Photograph representative damage with scale references. Note roof age, previous repairs, and any visible underlayment failure. For solar arrays, document panel model numbers, serials, and panel-level glass damage. Vendors should log inverter error codes and take baseline IV curve data if safe to access.

For vehicles and exterior metal work, record dent patterns and measure hail impressions when practical. Use consistent photo angles and include a ruler or coin for scale. Tarp and temporary repair work should follow local safety protocols and ladder standards. Provide homeowners with a documented scope, estimated lifespan impact, and recommended follow-up inspections.

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