Jul 5, 2019
Very heavy thunderstorms moved across portions of southeast Montana during the afternoon and early evening hours of the 5th. Rainfall anywhere from 1 to 6 inches was reported across this area. In addition, large hail also occurred with a few of these thunderstorms. The rain and hail combined resulted in flash flooding across some areas. One location had a few basements flooded, but otherwise, besides water over roadways, no major impacts were reported.
Source: NOAA National Weather Service Storm Events Database (event 836392). 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.