Lavina, MT Hail Storm – June 2026

A hail-producing storm moved through Lavina, Montana on June 7, 2026, producing a peak 1.54-inch hailstone and multiple radar-detected hail signatures in the late afternoon and early evening.

What Happened

NWS dual-polarization radar first flagged potential 1.00-inch hail over the Lavina area at 2:45 PM MDT. Cells weakened and redeveloped later in the day. A second radar-derived hail alert appeared at 6:03 PM MDT indicating hail near 1.02 inches. A spotter at 6:15 PM MDT reported 0.75-inch hail and noted the observation time was estimated from radar. The sequence shows an initial late-afternoon pulse followed by a more concentrated cell in the early evening that produced the spotter-verified report.

Radar coverage captured the storm’s passage across town and adjacent fields. The NWS issued two separate hail alerts covering portions of the Lavina warning area. Ground-truth from the spotter confirms that at least one location within the warning area experienced measurable surface hail during the later cell.

Damage Assessment

Available surface reports show limited localized impacts tied to the spotter-verified observation. The single public ground report recorded 0.75-inch hail near Lavina at 6:15 PM MDT; no additional local storm reports documenting structural failure or widespread vehicle damage were recorded in public feeds for this event. Radar signatures earlier in the afternoon indicated near-1-inch hail over portions of town and surrounding rural properties, but corresponding ground reports were sparse.

Taken together, the observations indicate isolated surface strikes rather than a broad swath of severe damage. Property owners and municipal crews should expect pocketed evidence of hail impact—loose shingle granules, minor dents to unprotected metal surfaces, and localized vegetation scarring—concentrated along the radar-derived track and near where the spotter reported 0.75-inch hail.

What Contractors Should Know

Prioritize inspections for properties and vehicles located within the NWS warning area and along the radar-derived hail track through Lavina. Start with structures that had direct sky exposure during the 6:00–6:30 PM MDT window. Check asphalt shingles for granule loss and stippling, metal roofing and siding for small dents, and vehicle panels for point impacts. Photograph all findings with time-stamped images and note proximity to the spotter-verified location.

For claims triage, use the spotter observation time and the two radar alert times to sequence damage assessments. Begin with the address clusters closest to the spotter report and expand outward along the mapped radar track. For rental properties and agricultural equipment stored outdoors, verify fabric tears and denting on sheet metal and irrigation components.

For contractors preparing estimates, document repairs by component and location rather than applying blanket per-roof estimates. Include walkthrough notes that reference the 6:15 PM MDT spotter observation and the radar-derived alerts at 2:45 PM MDT and 6:03 PM MDT. This ties observed damage to the storm timeline recorded for Lavina.