Jun 27, 2018
A cold front moving in from the west brought severe weather to parts of central and north central South Dakota. Large hail up to golf ball size, damaging winds to 70 mph, along with flash flooding occurred during the morning hours. The big story was a long track destructive hailstorm and severe winds that started in southeast Dewey county and moved southeast through western Sully county and through Hughes County. The hail swath was nearly continuous and was from 2 to 5 miles wide and for nearly
Source: NOAA National Weather Service Storm Events Database (event 770889). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lyman County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.