Arivaca, AZ Hail Storm – July 2026

Arivaca, AZ experienced a concluded hail event on July 27, 2026, producing a peak radar-derived hail diameter of 1.59 inches and multiple NWS warnings across the metro area.

What Happened

The storm moved through Arivaca in the late afternoon and early evening on July 27, then produced follow-up activity after midnight. The first hail alert was issued at 6:39 PM MST and reported 1.01-inch hail detected by dual-polarization radar. NWS issued a follow-up warning at 11:33 PM MST that listed no specific hail diameter and was an NWS warning only alert. A final NWS warning at 2:18 AM MST on July 28 noted 1 inch of hail but carried NWS warning only language.

Radar-detected returns were strongest in the early alert window. The maximum diameter recorded in the aggregate dataset for the event was 1.59 inches. The alert sequence shows an initial radar-detected hail signature, then two later warnings where the NWS issued alerts without additional radar hail-size measurements.

Damage Assessment

Hail of this size can dent vehicle body panels and crack thin roofing materials. In Arivaca, prioritize inspections of exposed passenger vehicles, aluminum awnings, and skylights where local exposure to the storm was highest. Asphalt shingle roofs should be checked for bruising and granular loss on south- and west-facing slopes that were downrange of the highest reflectivity.

Mobile homes and older single-layer roofing systems in the immediate Arivaca metro footprint are at greater risk for impact damage. Photographic documentation is essential. Capture close-up and wide-angle images of roof fields, vehicle panels, and any punctures or fractures. Note location, date, and time on each image file name for claims and repair planning.

What Contractors Should Know

Schedule field assessments beginning with the most exposed assets: damaged vehicles, HVAC condensers, rooftop solar panels, and any evidence of shingle granule displacement. Use tactile checks and lift-sample methods on shingles to confirm loss of adhesion. Record representative hail impressions and, if possible, measure embedded hail diameters. Prioritize tarping and temporary covers only where water intrusion is possible.

Estimate repair scopes with line-item clarity. Separate hail-related deterioration from pre-existing wear. Provide owners with dated photo logs and a sequence of recommended repairs by urgency. Coordinate with insurers on documented evidence and offer temporary mitigation to prevent secondary water damage. For clients seeking precise hit locations, the paid Strike Map delivers the radar-derived hail track and damage zone for the Arivaca event.