Hail — Bremer, Iowa

2025-09-22 · near Denver, Bremer, Iowa

Event narrative

Social media image of quarter sized hail. Relayed by KWWL. Time estimated from radar.

Wider weather episode

Storms developed in late afternoon along a boundary across northern Iowa, then sunk south through the evening. Storms were able to organize into a more cohesive line with 2000+ J/kg of MLCAPE and around 30 kts of shear. Storms initially resulted in a number of quarter sized hail reports, then transitions to wind damage as the cold pool surged south ahead of the line through the evening.

View location on OpenStreetMap → (42.6700, -92.3300)

Source: NOAA Storm Events Database, event_id 1297883. Narrative written by the NWS forecast office that issued the report.