Howell, MI Hail Storm – August 2025

Howell, MI saw a concluded hail storm on 2025-08-16 with verified 1-inch hail during two separate warning periods. The event unfolded in the afternoon and early evening across the metro area.

What Happened

The first severe thunderstorm warning came at 4:02 PM EDT, with radar and spotter verification supporting 1-inch hail in the Howell, MI area. A second warning followed at 5:25 PM EDT, again carrying a 1-inch hail threat with radar and spotter-verified confidence.

The storm was not a single isolated burst. It came through in multiple zones, with more than one alert cycle covering the same metro area on the same day. The warning sequence points to a hail-producing storm that maintained enough structure to continue producing reported hail into the early evening.

For field teams, the key timing markers are the two warning periods. The first alert covered the late-afternoon window. The second extended the hail threat farther into the evening. Both alerts carried the same peak hail size of 1 inch.

Damage Assessment

One-inch hail is enough to produce visible impacts on exposed surfaces. Roof shingles can show bruising or surface loss. Metal trim, vents, and gutters can show dents. Soft metals and painted finishes often show the first clear signs of impact, especially on south- and west-facing exposures that took the storm directly.

Vehicles parked outdoors during the warning periods may show dents on hoods, roofs, and trunk lids. Window screens, patio furniture, and exterior siding can also show impact marks depending on the angle and duration of the hail core. In a multi-zone storm, damage can vary block by block. A property inside one warning period may show light impact only, while a nearby site under the next alert can show a different pattern.

For contractors, the practical expectation is scattered hail damage rather than uniform loss. That means close inspection matters. Look at ridges, valleys, flashing, roof accessories, and soft metal components. Check for collateral impacts on HVAC fins, gutters, downspouts, fascia, and any exposed vehicle surfaces if the property had outdoor exposure during the afternoon or early evening.

What Contractors Should Know

This was a 1-inch hail event with two verified alert periods over Howell. That gives crews a narrow field window centered on the afternoon of 2025-08-16. Start with homes and commercial sites that were inside the warning area during both 4:02 PM EDT and 5:25 PM EDT. Those addresses are the most likely to need roof, metal, and exterior checks.

The storm structure suggests repeat exposure rather than a single pass. Crews should expect mixed field findings across the metro. One roof line may show only cosmetic marks, while another property a few blocks away can show more concentrated impact on vents, gutters, and soft metal components. Vehicle inspections can also help confirm the hail path when roof indicators are limited.