Oct 22, 2017
A pre-frontal trough of low pressure triggered the development of slow moving thunderstorms near the Atchafalaya River basin during the late evening hours of the 21st and the early morning hours of the 22nd. This produced very heavy rainfall and some flooding in the basin.||The trailing cold front produced another band of showers and thunderstorms during the morning hours of the 22nd. This front swept across southeast Louisiana, southern Mississippi and the adjacent coastal waters during the lat
Source: NOAA National Weather Service Storm Events Database (event 720089). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Harrison County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.