Aug 2, 2019
Nearly stationary thunderstorms developed over and near Custer during the early afternoon. Radar estimated six to seven inches of rain fell west of Custer, with measured observations as much as 5.35 inches. Runoff moved downstream along French Creek, causing severe flooding in the town of Custer through the evening. Road closures and some evacuations were reported by the Custer County Sheriff's office before water began to recede.
Source: NOAA National Weather Service Storm Events Database (event 855549). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Custer County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.