Jun 10, 2021
A strong short-wave trough moved into the Northern Plains as a slow moving warm front lifted through North Dakota. Very strong instability developed by afternoon, along with increased deep layer shear. The initial storms occurred over west-central and northwest North Dakota. The main concern with these storms was large hail and tornadoes. Multiple tornadoes occurred over western McKenzie County over a similar location, and one occurred in Williams County. Photos of the tornadoes submitted to the
Source: NOAA National Weather Service Storm Events Database (event 964562). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Williams County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.