Aug 28, 2021
An unstable warm sector with MUCAPE up to 2000-2500 J/kg developed during the afternoon between an advancing cold front across southeast South Dakota, and a gangly warm front extending into southwest Minnesota. An approaching weak impulse spurred rapid development of multiple rounds of storms near the warm front, initially discrete, with upscale growth into short bowing segments. Secondary development occurred during the evening along the cold front, which evolved into a slow-moving linear syste
Source: NOAA National Weather Service Storm Events Database (event 983382). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Pipestone County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.