Glendo, WY Hail Storm – June 2026

A severe hail storm tracked through Glendo, WY on June 24, 2026, producing 2.3-inch hail and prompting 16 NWS alerts from late afternoon into the evening.

What Happened

The first radar-derived hail detection appeared in the late afternoon, with dual-polarization radar showing 1-inch returns around 4:15 PM MDT. NWS warning-area products followed between 5:04 PM and 5:38 PM as the storm intensified and moved northeastward toward the Glendo metro area. Between 5:38 PM and 5:45 PM radar-derived estimates increased, with successive NEXRAD hail detections rising to roughly 1.25–1.5 inches before spotter reports began to arrive.

Local observers provided early surface confirmation. At 5:45 PM MDT Rock River emergency management reported quarter-sized hail in Rock River Proper. At 5:58 PM MDT Albany County emergency management transmitted multiple reports of hail up to 1.5 inches in Rock River. A trained spotter reported ping-pong sized stones at 6:08 PM MDT. Radar continued to show concentrated hail cores through early evening, including a notable radar-derived increase at 6:51 PM MDT. Additional radar-derived alerts continued into the later evening, with diminishing hail returns through 9:00 PM MDT.

NWS warning-area messages accompanied many of the radar detections. Some alerts were issued on warning language alone, while others were radar-detected or spotter-verified. The combined sequence shows a storm that strengthened in late afternoon, produced multiple concentrated hail cores as it crossed Albany County, and then weakened after passing Glendo.

Damage Assessment

Field reports and radar detections place the primary surface impacts in and immediately around Rock River and Rock River Proper. Multiple entries at 5:58 PM MDT attributed to Albany County emergency management documented 1.5-inch stones in Rock River. Rock River emergency management separately reported quarter-sized hail at 5:45 PM MDT in Rock River Proper. The trained spotter report at 6:08 PM MDT described ping-pong sized hail at a location consistent with the radar hail core.

Local storm reports in the dataset do not list structural collapse or injuries. Reports focus on stone size and location, not on a broad pattern of destruction. Radar-derived hail cores align with the spotter locations, indicating concentrated strikes on the north and northeast sides of Rock River as the storm tracked toward Glendo. Observers noted a brief window of larger stones rather than an extended swath of continuous large hail across the entire warning area.

No additional confirmed ground-truth damage reports were received for Glendo proper in the provided dataset. Claims and contractor assessments should reference these specific Rock River observations when prioritizing initial inspections.

What Contractors Should Know

Prioritize inspections in Rock River and Rock River Proper first. Multiple spotter-verified reports cite impact-sized stones there between 5:45 PM and 6:08 PM MDT. Start with vehicle fleets, exposed solar arrays, and asphalt shingle roofing on properties located along the radar-aligned hail cores. Photograph hail impacts with time- and location-stamped images. Record VINs for fleet vehicles and note panel serials for solar equipment.