May 21, 2018
An upper low was digging into southern California with a surface low located over northwest Chihuahua. Southeast winds east of the surface low brought low level gulf moisture into the region with southwest winds aloft helping to produce ample shear for severe thunderstorms with hail up to an inch in diameter and wind gusts over 60 mph. Some flash flooding was also reported in Sunland Park.
Source: NOAA National Weather Service Storm Events Database (event 758057). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Dona Ana County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.