Nov 27, 2015
A deep upper level trough became cut off from the westerlies across the Inter-Mountain West. This trough helped to bring up Gulf of Mexico moisture as well as Eastern Pacific moisture into the Southern Plains and Lower Mississippi Valley. The heavy rain threat was aided by moisture streaming northward from Hurricane Sandra which was just off the western Mexican coast at this time. Rainfall became quite heavy on the 27th and 28th of the month with two day rainfall totals in excess of 4 to 8 in
Source: NOAA National Weather Service Storm Events Database (event 603183). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in McCurtain County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.