Jun 28, 2009
A plume of moist tropical air was streaming northward over New Mexico between an upper high to the east and a Pacific upper trough to the west. In addition, a weak backdoor front was stalled across the area. Disturbances within the southerly flow interacting with the front resulted in thunderstorms that were efficient rain producers.
Source: NOAA National Weather Service Storm Events Database (event 186084). 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.