Mercer, PA Hail Storm – June 2025

What Happened

A severe hail storm moved through Mercer, Pennsylvania, on June 18, 2025, producing 1-inch hail and a series of spotter-verified damage reports across town. The event included three NWS alert areas at 4:18 PM EDT, 7:26 PM EDT, and 7:43 PM EDT, all tied to dual-polarization radar confidence.

The first alert came in during the late afternoon, when the storm was already producing hail near the city. Field reports followed within minutes. At 4:31 PM EDT, a power pole was reported down on Stanton Street. At 4:35 PM EDT, a tree was down at Fourth Avenue and Reed Street. A report at 4:39 PM EDT placed a tree across State Street, where it also took down power lines.

Additional spotter reports came in through the next hour. A tree was down on Old Mercer Road at 4:49 PM EDT. Another tree was reported on Creek Road at 5:00 PM EDT. By 5:33 PM EDT, West Market Street also had a downed tree. The report set shows a storm that kept producing ground impacts across multiple streets rather than a single isolated hit.

The later NWS alert areas at 7:26 PM EDT and 7:43 PM EDT show the storm threat continued into the evening. Radar confidence remained at the 1-inch level during those later warnings.

Damage Assessment

The damage pattern in Mercer was centered on downed trees, a downed power pole, and power lines hit on State Street. The reports came from scattered points across the city, including Stanton Street, Fourth Avenue and Reed Street, Old Mercer Road, Creek Road, and West Market Street. The locations span both residential and traffic corridors.

The strongest documented impact in the field reports came from the State Street incident, where a tree fell across the road and knocked down power lines. The Stanton Street report adds infrastructure damage beyond limb loss. The rest of the report set shows tree failures at several separate addresses, all spotter-verified.

The field reports match a short-lived but disruptive hail and wind event. They also show that the storm produced more than hail alone. Even where the hail size remained at 0.75 inch in the local reports, the surface impacts reached trees, poles, and utility lines.

For contractors, Mercer deserves a street-by-street check rather than a single-pass drive. State Street and Stanton Street should be first on the list because the reports there include power-line and pole damage. Old Mercer Road, Creek Road, West Market Street, and the Fourth Avenue and Reed Street area should follow for tree strike and limb damage.

Roofs in this kind of event often show limited visible exterior loss from the street, so a quick curbside look is not enough. Check steep slopes, metal edges, gutters, downspouts, and south- and west-facing elevations where hail impact and wind-driven debris often leave the first signs. Any property beneath mature trees should be treated as a higher-risk inspection stop because the report set shows repeated tree failures across Mercer.