Ajo, AZ Hail Storm – August 2026

Ajo, Arizona experienced a multi-zone hail event on August 9, 2026, peaking with 1.8-inch hail and producing a string of NWS warning-area alerts. The event progressed from late afternoon into late evening and included both NWS warning-only reports and dual-polarization radar detections.

What Happened

The storm cycle began in the late afternoon and continued into the late evening. The National Weather Service issued 13 alerts for the Ajo area between 4:20 PM MST and 11:15 PM MST. Dual-polarization radar detected hail signatures early in the sequence at 4:20 PM MST and again late in the cycle at 9:26 PM MST. The intervening alerts were predominantly NWS warning only reports issued between 6:33 PM MST and 10:36 PM MST. Reported hail sizes on those warning-area messages ranged from three-quarters of an inch to 1.5 inches. The final NWS alert was issued at 11:15 PM MST.

The event impacted multiple adjacent notification zones surrounding Ajo. Radar detections and the NWS warning polygons overlap but do not represent identical footprints. Radar-detected signatures indicate focused hail return areas within the broader NWS warning areas issued by forecasters.

Damage Assessment

NWS warning-area reports in this event documented hail generally between 0.75 inch and 1.5 inch across the warning footprint. Hail in that range commonly produces cosmetic vehicle damage, bruised or granule-loss on asphalt shingles, and denting of exposed soft metals. Dual-polarization radar detections indicate larger stones occurred in portions of the hail track late in the event. Larger stones increase the likelihood of broken skylights, cracked photovoltaic modules, and punctured vinyl or aluminum siding when impacts are direct.

Damage observations should be tied to exact locations within the warning area. Vehicle panels and recorded exterior photos typically show early signs of impact. Roof inspections focused on shingle bruising, granule loss, and cracked tiles will reveal where hail intensity concentrated. Solar arrays and HVAC equipment mounted on exposed roofs merit priority inspection where radar signatures and warning polygons overlap.

What Contractors Should Know

Document condition before repairs with time-stamped photos and GPS coordinates. Start with the highest-risk assets identified by roof orientation and exposure: south-facing solar arrays, ridge-mounted HVAC units, and vehicles parked outdoors during the event. Note that NWS warning-area alerts define the general alert footprint. Use radar-detected signatures to prioritize detailed inspections within that footprint.

For roofing, look for shingle bruising and granule displacement rather than relying solely on missing shingles. Check flashings, vents, and skylights for impact cracking. For solar arrays, inspect glass and microinverters for fractures and water ingress. Record all findings in a project file tied to the local address and NWS warning times for claims purposes.