Aug 1, 2014
A very moist atmosphere was in place with weak flow aloft keeping storm motion very slow. A weak upper level trough was passing over the region which triggered scattered thunderstorms with very heavy rain which lead to over 20 houses in Alamogordo getting flooded and mud slides south of Las Cruces.
Source: NOAA National Weather Service Storm Events Database (event 538817). 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.