Green Mountain Falls, CO Hail Storm – May 2025

What Happened

A hail storm moved through Green Mountain Falls, Colorado, on May 27, 2025, producing confirmed 1.25-inch stones during a multi-round severe weather event. The storm continued into the evening with repeated hail alerts and spotter-verified reports in the late afternoon.

The first hail alert came at 4:31 PM MDT with 1-inch hail indicated by dual-polarization radar. Two minutes later, at 4:33 PM MDT, radar and spotter verification supported a 1.25-inch hail call. A second 1.25-inch alert followed at 5:00 PM MDT, again with radar and spotter support. A spotter report at 5:09 PM MDT described Ping Pong Ball hail at 1.50 inches.

Additional hail alerts were issued at 5:31 PM MDT, 7:35 PM MDT, 8:14 PM MDT, 8:59 PM MDT, and 9:46 PM MDT. Each of those later alerts carried 1-inch hail confidence from dual-polarization radar. The sequence shows a storm that kept producing hail echoes well into the evening hours across the Green Mountain Falls area.

Damage Assessment

Ground reports point to localized surface impact near the time of the 5:09 PM MDT spotter observation. The 1.50-inch report is the largest field-confirmed stone in this event, and it came during the same storm cycle that had already produced radar and spotter-verified 1.25-inch hail two times earlier in the afternoon.

In a mountain town like Green Mountain Falls, hail of this size often concentrates along narrow corridors rather than spreading evenly across every block. The report timing suggests a compact core with short-duration but intense hail near the most affected parts of the storm path. Repeated radar detections later in the evening show the storm remained organized after the main verified hail report.

No field report in the available data lists tree failure, roof punctures, or vehicle glass breakage. The evidence here is centered on hail size, timing, and repeated hail detection, with the strongest ground truth coming from the spotter-verified mPING report at 5:09 PM MDT.

What Contractors Should Know

This event should be treated as a hail inspection lead for Green Mountain Falls and the nearby mountain corridors that feed into the town. The verified 1.25-inch and 1.50-inch reports support inspection priority for roofs, soft metals, gutters, downspouts, ridge vents, and exterior trim on buildings exposed during the late-afternoon window.

The repeated 1-inch radar alerts after 5:31 PM MDT extend the lead pack beyond the first verified report. That makes same-day canvassing less useful than a targeted next-day route focused on the storm path and nearby elevations where hail cores often tighten over short distances. Look at slope-facing roofs, south and west exposures, and parking areas where vehicles were parked during the 4:30 PM to 6:00 PM MDT period.

On this type of mountain storm, hail claims often cluster by street segment rather than by broad neighborhood. Inspectors should document impact marks, edge bruising, and granular loss on asphalt shingles before any cleanup work begins. Crews that work this area should also check metal fascia, HVAC tops, skylight lenses, and window screens where the 1.50-inch report likely produced the most obvious surface impacts.