Holbrook, AZ Hail Storm – September 2026

Holbrook, AZ experienced a late-morning to early-afternoon hail event on September 14, 2026, peaking at 1.73 inches and producing a compact, radar-detected hail swath. The storm is concluded.

What Happened

The event began with an NWS warning issued at 12:19 PM MST. That warning cited 1-inch hail and covered the initial NWS alert area. Dual-polarization NEXRAD hail detection then tracked the cell across Holbrook in three subsequent alerts: 12:57 PM MST, 1:45 PM MST, and 2:28 PM MST. The dual-polarization scans recorded elevated hail signatures during the middle alert and maintained detections on the later passes. This page aggregates those NWS warnings and radar-derived detections into a multi-zone report for the Holbrook metro area. The storm concluded in the early afternoon local period.

Damage Assessment

The largest stones measured at a scale just under golf-ball size (golf ball = 1.75 inches). Hail at this scale commonly produces localized denting to vehicle sheet metal and can fracture older or poorly seated roof shingles. Windows and skylights on exposed slopes are at increased risk for cracking where protective glazing is aged or already compromised. Metal roofing with existing corrosion or shallow coatings may show loss of finish where impacts were concentrated along the radar-detected track.

For residential siding and external fixtures in Holbrook, expect impact marks and localized pitting on vinyl and aluminum surfaces where hail fell directly. Ground-based evidence was not included in the initial warning; however, the dual-polarization detections across multiple scans indicate a coherent hail corridor rather than an isolated gutter. Owners with exposed HVAC condensers, rooftop solar modules, or unsecured outdoor equipment along the observed track should prioritize inspection for impact damage.

What Contractors Should Know

Prioritize safety and documentation on first visits. Verify ladder and roof safety given recent wet conditions. Photograph roof fields, gutters, vehicles, and visible HVAC/solar damage with scale references. Measure any remaining fragments against object scales used by local spotters; note that golf ball equals 1.75 inches and a quarter equals 1.00 inch. Log the property address, photo timestamps, and the local NWS warning area name for each file. Avoid definitive statements about total loss without on-site inspection and direct evidence.

For repairs, apply standard temporary measures before full remediation. Secure tarps only where they can be safely installed and where they reduce immediate interior risk. Replace fractured skylights and cracked glazing promptly to prevent water intrusion. For roofing, inspect for granular loss, fractured shingle tabs, and deformation of metal panels before recommending full replacement. Coordinate with property owners on claims documentation and provide clear timelines for permanent repairs. Use the radar-derived timing and alert sequence to prioritize canvass zones and allocate crews efficiently.