Henderson, MN Hail Storm – June 2026

A hail storm moved through Henderson, Minnesota on June 23, 2026, producing 1.07-inch stones in the early evening and prompting two NWS alerts. The event produced short-lived roadside accumulations and a single spotter-verified report of one-inch hail.

What Happened

Dual-polarization radar first detected significant hail signatures near Henderson at 4:27 PM CDT, with radar-derived hail estimates peaking at about 1.25 inches in the detection swath. A Spotter Network observer reported at 5:28 PM CDT that hail averaged the size of dimes, lasted a couple of minutes, and created visible piles on the side of a road. The NWS issued a later warning at 6:23 PM CDT that covered portions of the same corridor but did not include a radar hail detection in that issuance.

Radar-derived hail alerts and the spotter report align in time and location across the late afternoon and early evening window. The sequence shows an initial radar-detected hail core, a brief period of measurable ground impact as observed by a trained spotter, and a subsequent NWS warning that appears to have been precautionary for storm motion rather than tied to new radar hail returns.

Damage Assessment

Field reports and radar indicate localized, short-duration surface impact in and immediately around Henderson. The spotter account documents one-inch stones that accumulated along a roadside and lasted only a few minutes. No additional local storm reports of residential structural damage or widespread vehicle impacts were recorded in the available LSRs for this event.

Radar hail estimates were concentrated and short-lived, which corresponds with the spotter description of brief piles rather than extended accumulations across broad neighborhoods. The later NWS warning area expands the region of concern but does not add new, verified surface impacts in public reports. Based on available observations, expect isolated cosmetic damage to exposed vehicles and potential minor bruising to vulnerable roofing materials along the mapped track of the storm.

What Contractors Should Know

Inspect properties located along the spotter-verified path and inside the NWS warning area issued at 6:23 PM CDT first. Prioritize vehicles parked near the roadside where the spotter observed pileups and driveways closest to the edge of the road. Use close-up and wide-angle photographs with a ruler or coin for scale and a timestamped device. Record exact addresses or GPS coordinates when possible.

On buildings, check for asphalt shingle bruising and granule loss on roof slopes that face the storm track. Look at gutters and downspouts for temporary blockages caused by melted accumulations. Focus initial inspections on soft metal flashings, skylights, and vinyl trim that can show dents from one-inch stones. Note that damage from a brief, high-intensity core can be patchy; inspect multiple points on a roof rather than relying on a single vantage.