May 9, 2019
A slow moving low pressure system moved northeast from the High Plains region toward the Great Lakes between May 8th and 9th. Two shortwave troughs moving east ahead of this low pressure system initiated squall lines that spread eastward across much of the Gulf Coast region. Thunderstorms embedded in these squall lines produced damaging wind gusts and a few tornadoes. Additionally, repeated rounds of heavy rain led to scattered flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 830780). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Washington County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.