Cheyenne, WY Hail Storm – October 2025

What Happened

A severe hail storm moved through Cheyenne, WY on October 16, 2025, with the peak verified hail size reaching 1.5 inches. The storm produced six NWS hail alerts between 6:49 PM and 8:14 PM MDT, with the strongest verified report at 7:26 PM MDT.

Early in the evening, dual-polarization radar supported 1-inch hail estimates at 6:49 PM MDT and again at 7:22 PM MDT. At 7:26 PM MDT, the warning escalated to 1.5-inch hail with radar and spotter verification. Additional 1-inch hail alerts followed at 7:32 PM, 7:48 PM, and 8:14 PM MDT, showing a sustained hail threat across the Cheyenne metro during the evening window.

A ground report from mPING at 7:50 PM MDT listed dime-size hail at 0.75 inches. That spotter observation fell within the same event window and matched a storm that was still producing smaller stones after the verified peak had already been reported. The sequence points to a storm that pulsed over time rather than ending in a single brief burst.

Damage Assessment

The field reports show a mixed hail footprint across the Cheyenne area, with the strongest verified stones limited to the 7:26 PM MDT report and smaller hail still reaching the surface later in the event. The mPING report at 7:50 PM MDT documents 0.75-inch hail after the peak verification, which places measurable hail in the area for at least another 20 minutes after the largest confirmed size.

No specific structural loss was included in the supplied reports, but the report mix supports inspection of roofs, gutters, roof penetrations, and exposed siding across the parts of Cheyenne under the storm path. Vehicles parked outdoors during the 7:20 PM to 8:15 PM MDT window should be checked for scattered impact marks, especially where the storm lingered after the first verified large hail report.

The radar and spotter record do not describe a citywide uniform hail swath. Instead, they show a storm with changing hail size across a narrow evening time window. That pattern calls for address-level review rather than broad assumptions about the entire metro.

What Contractors Should Know

Work in Cheyenne should focus on the evening of October 16, 2025, with the highest confidence window centered on 7:26 PM MDT and the broader hail activity running from 6:49 PM to 8:14 PM MDT. The verified 1.5-inch report is the key marker for inspection planning, but the later 0.75-inch report shows the storm remained active after the peak. Properties inside the warning area may not have seen the same hail size at the same time.

For roofing and exterior work, start with steep-slope shingles, soft metal components, vents, skylights, and downspout runs. In a storm like this, the larger stones usually leave the clearest impact on hit-prone surfaces, while smaller follow-on hail can still add collateral wear to less exposed sections. Check for concentrated impact patterns on south- and west-facing slopes if those surfaces were most exposed during the evening passage.