Hail — Bon Homme, South Dakota
2025-04-28 · near Scotland, Bon Homme, South Dakota
1
Magnitude
Event narrative
Hail was up to quarter to half-dollar size at times.
Wider weather episode
Thunderstorms erupted along a cold front and a post-frontal boundary during the afternoon and early evening of April 28. Steep mid-level lapse rates around 8C/km and 55 to 65 knots of deep-layer shear led to severe storm structures, which evolved toward smaller-scale linear features along strong outflow pools with 60 to 65 mph winds during the event. Post-frontal storms developed in an environment of up to 1000 J/kg MUCAPE which favored mainly large hail.
View location on OpenStreetMap → (43.1000, -97.8100)
Source: NOAA Storm Events Database, event_id 1256793. Narrative written by the NWS forecast office that issued the report.