Nogales, AZ Hail Storm – July 2025

Nogales, AZ saw a concluded hail event on 2025-07-31 with a maximum confirmed hail size of 1 inch. The storm moved through the metro in two alert phases during the afternoon and early evening.

What Happened

The first alert came at 3:23 PM MST, with dual-polarization radar support showing 1-inch hail potential. The second alert followed at 6:47 PM MST and carried a 1-inch hail call based on NWS warning coverage alone.

Both alerts placed the Nogales area inside a hail-producing storm line on the same day. The earlier alert had radar-derived confidence. The later alert held the same hail size but relied on the warning area without a radar confidence upgrade. The event has concluded.

Damage Assessment

Hail up to 1 inch is large enough to leave visible marks on soft metals, older shingles, and exposed vehicle panels. Roofing impacts can include bruised asphalt, torn granules, and small fractures around roof edges, vents, and ridge lines. Window screens, skylights, and patio covers can also show impact wear.

In mixed residential and commercial areas, the most common field findings after a 1-inch hail event are cosmetic roof loss, dented gutters, and pitting on HVAC housings and exterior trim. Siding damage depends on material type, age, and angle of impact. Painted metal and thin aluminum components often show the clearest marks.

The 1-inch size mark also supports a broader roof and exterior inspection rather than a quick visual check from the ground. Crews should look for pattern-based impacts on south- and west-facing slopes, garage doors, fascia, downspouts, and flat accessory roofs. Vehicles parked outdoors may show concentrated dents on horizontal surfaces and hood lines.

What Contractors Should Know

Contractors working Nogales storm claims should treat this as a multi-alert hail file with two separate timing anchors. The first alert at 3:23 PM MST gives a clear afternoon reference point. The second alert at 6:47 PM MST extends the storm window into the evening and may matter for policy timing, resident interviews, and travel logs.

Field teams should document roof slope, elevation changes, and material transitions during inspections. On 1-inch hail events, impact patterns often vary across the same property. Ridge caps, soft metals, and membrane edges may show damage before the main field of shingles. Photos should include wide roof views, close material shots, and location markers on each elevation.

For exterior claims, collect direct evidence from gutters, condensers, window trim, patio enclosures, and vehicle surfaces before repair work begins. If the property sits near the edge of the warning area, crews should compare observed wear with the storm timing and the alert sequence. That helps sort out which properties were under the most direct hail path.