Hail — Cottonwood, Minnesota

2025-09-21 · near Windom, Cottonwood, Minnesota

Event narrative

Hail was quarter size or smaller.

Wider weather episode

A weak mid-level wave dropped slowly southeast across northern Minnesota on the afternoon and evening of September 21 and into an environment with 35 kts of deep-layer shear and 1000-1500 J/kg MUCAPE. Scattered slow-moving thunderstorms developed in the vicinity of a diffuse warm frontal boundary and produced hail up to 1.75 to 2 inches in diameter.

View location on OpenStreetMap → (43.8800, -95.1200)

Source: NOAA Storm Events Database, event_id 1292870. Narrative written by the NWS forecast office that issued the report.