Mesa, AZ Hail Storm – September 2026

Mesa, AZ — Mid-morning on September 16, 2026, a brief thunderstorm produced a peak hail diameter of 0.69 inch as it moved across the Mesa metro. The cell prompted a single midday hail warning and concluded without extended follow-on activity.

What Happened

The storm developed over the Mesa metro during mid-morning and moved east-northeast through the city. The National Weather Service issued one hail warning at 11:02 AM MST for potential 0.75-inch hail; the warning carried a NWS warning only status. The warning polygon covered a single corridor through the central metro and was not followed by additional NWS alerts.

Radar returns showed a compact reflectivity core as the cell passed over urban Mesa. Storm duration over any individual neighborhood was brief, on the order of minutes rather than tens of minutes. No spotter-reported large stones were attached to the NWS warning for this event.

The event is concluded. Local conditions returned to typical afternoon stability after the cell passed.

Damage Assessment

Peak stones measured below the size of a US penny (0.75 inch). Hail of this scale across an urban metro generally produces limited impact on durable building materials. Expect superficial paint scuffs and small dents to exposed vehicle panels where exposure was direct and unshielded. Plant foliage and shallow-rooted landscape can sustain leaf shredding and bruising when exposure is concentrated.

Roofing shingles, siding, and windows typically do not suffer structural failure from impacts under penny size unless existing deterioration or prolonged, repeated exposure occurred. Homeowners reporting leaks or punctures should document locations with date-stamped photos and note the street address and time of observation for any insurance or repair conversations.

What Contractors Should Know

For auto repair shops and mobile dent technicians: prioritize visual surveys for hail cosmetics on client vehicles within the storm corridor. Photograph vehicle panels, record the vehicle location and the local time of inspection, and log whether vehicles were parked outdoors or in covered structures. Small dents and paint imperfections are the most likely calls; provide clear before-and-after imagery to support estimates.

For roofing and exterior contractors: schedule quick visual roof walks focused on high-stress components such as flashings, hips, and ridge caps. Unless clients report active leaks, recommend a documented inspection first rather than immediate replacement. Where water intrusion is present, take photos of internal staining and the affected roof areas. Provide time-stamped estimates that note the observed hail size and the NWS warning time.

Paid users can view the Strike Map for the radar-confirmed hail swath.