Hammond, LA Hail Storm – May 2025

What Happened

A severe hail storm moved through Hammond, LA on May 23, 2025, with verified hail reaching 1.25 inches in the metro area. The event produced three NWS alerts from late afternoon into early evening.

The first alert came at 4:58 PM CDT with 1-inch hail and radar plus spotter verification. A field report at 4:42 PM CDT from mPING noted half-inch hail. A delayed spotter report at 5:00 PM CDT confirmed 1-inch hail. The storm then intensified on radar, with a 5:40 PM CDT alert showing 1.25-inch hail from dual-polarization radar detection.

A third alert at 6:48 PM CDT still carried 1-inch hail as the storm remained organized farther along its path. The warning sequence showed a storm that held hail-producing strength through multiple cycles, with field reports and radar both pointing to a sustained hail core across the Hammond metro.

Damage Assessment

The field reports point to localized surface impact rather than widespread destruction. The first report, from mPING at 4:42 PM CDT, placed hail at one-half inch. Eighteen minutes later, a spotter report at 5:00 PM CDT moved the size up to 1 inch. That jump lines up with a strengthening hail core over the area.

In practical terms, that pattern is consistent with scattered roof and vehicle impacts in the hardest-hit corridors, along with lighter strike areas nearby. The report set does not show a single continuous swath of large hail across the whole metro. It shows a storm that pulsed, with hail size rising and falling as the cell crossed Hammond and the surrounding warning area.

The 5:40 PM CDT radar-based alert is the strongest data point in the sequence. It verified 1.25-inch hail. That level of hail can leave a mix of visible and hidden impact marks on vehicles, soft metals, gutters, roof vents, and exterior trim. The later 6:48 PM CDT alert at 1 inch suggests the storm kept producing hail after the peak had passed, which can leave separate pockets of damage along the track.

For property work, the key issue is not just the peak size. It is the spread between the first half-inch report and the later 1.25-inch verification. That gap usually means conditions varied block by block, especially near the core of the storm.

What Contractors Should Know

Start with the late afternoon corridor where the 4:42 PM CDT and 5:00 PM CDT reports clustered. That window gives you the first usable field timeline. Focus canvassing on roofs, detached metal features, vehicles, and north-south facing exterior surfaces first, then work outward into the rest of the Hammond metro.

The radar sequence suggests more than one hail pulse. Crews should not assume the same impact level across the entire warning area. One property may show only cosmetic marks from the half-inch phase. A nearby property may carry harder strikes from the 1.25-inch phase. Treat each roof and vehicle lot as a separate inspection point.