Jun 23, 2023
A very moist, easterly surface flow returned during the 3rd week of June. Dewpoints were again well above 50 degrees, with many areas around 60 degrees. In addition, atmospheric precipitable waters were well over 1.00. Winds aloft continued to be light resulting in slow-moving, heavy thunderstorms. As a result, several flash flood events occurred across portions of central and southeast Montana.
Source: NOAA National Weather Service Storm Events Database (event 1103204). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Powder River County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.