Jul 20, 2020
During the evening a line of thunderstorms moved south into Southwest Nebraska. As the storms moved through they produced hail up to ping-pong ball size, estimated wind gusts up to 60 MPH, and started an oil supply tank on fire near Trenton from a lightning strike. Part of this line of storms moved slow enough to cause flash flooding near Parks in Rock Creek, washing part of the road and small bridge out.
Source: NOAA National Weather Service Storm Events Database (event 910202). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Dundy County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.