Frederick, OK Hail Storm – October 2025

What Happened

A severe hail storm moved through Frederick, Oklahoma, on 2025-10-23 and produced a peak verified hail size of 2 inches. The event unfolded from late afternoon into the overnight hours, with repeated NWS hail alerts showing a steady pulse of larger stones through the warning area.

The first alert came at 5:41 PM CDT with 1-inch hail, backed by radar and spotter verification. By 6:19 PM CDT, the warning area had expanded to 1.25-inch hail. Dual-polarization radar then continued to detect 1-inch hail at 6:39 PM CDT and 7:12 PM CDT, while spotter-supported alerts increased to 1.75 inches at 6:55 PM CDT and again at 7:23 PM CDT.

The strongest stretch came in the early evening. At 7:27 PM CDT, the alert reached 2-inch hail, and radar and spotter verification held at that size again at 8:13 PM CDT, 8:31 PM CDT, and 8:53 PM CDT. A dual-polarization radar alert at 8:42 PM CDT briefly dropped back to 1 inch, then the storm continued into the night with radar-derived hail estimates of 1.75 inches at 12:25 AM CDT and 1.5 inches at 1:25 AM CDT and 2:07 AM CDT.

Three spotter reports at 8:48 PM CDT from mPING described hen egg-sized hail at 2.25 inches. Those reports were the largest field observations tied to the event and came during the period when the storm had already cycled through multiple 2-inch hail alerts.

Damage Assessment

The field reports showed a concentrated hail core with stones larger than the radar alerts alone suggested. The 8:48 PM CDT mPING reports of 2.25-inch hail place the surface impact above the 2-inch threshold used in the warning sequence, and they came during the most active part of the storm over the Frederick area.

The damage picture points to roof, siding, screen, and vehicle impacts in the hardest-hit part of the warning area. In a storm with repeated spotter-backed alerts at 1.75 inches and 2 inches, the most likely losses are bruised shingles, broken soft metals, cracked vent caps, and vehicle dings where exposure was direct. The overnight radar detections of 1.75 inches and 1.5 inches show the hail threat did not end with the early evening peak.

The repeated reports at 8:48 PM CDT matter because they show ground truth near the maximum end of the storm. When three independent field reports all describe 2.25-inch hail, the surface impact is not limited to a single isolated strike. It points to a hail swath with enough intensity to affect multiple properties inside the warning area.

Damage patterns in Frederick should be checked by block, not by broad town assumptions. Roof slopes facing the storm path, exposed metal trim, skylights, and west- and south-facing vehicle parking areas deserve the first inspection. Where hail reached 2 inches or larger, dent spacing and impact clustering should be documented before repair crews start removing evidence.