Hail — Guthrie, Iowa

2025-09-03 · near Jamaica, Guthrie, Iowa

Event narrative

Quarter sized hail reported by former NWS employee.

Wider weather episode

A surface low and associated surface boundary sank across the state through the morning of September 3rd. Despite little in the way of instability, with MUCAPE only around 100 J/kg and mid level lapse rates under 7 C/km, storms were able to develop along the boundary with 30-35 kts of shear. Storms were fairly weak, however one did organize enough to produce quarter sized hail that was reported in Guthrie County.

View location on OpenStreetMap → (41.8000, -94.3100)

Source: NOAA Storm Events Database, event_id 1297986. Narrative written by the NWS forecast office that issued the report.