May 19, 2021
Strong east-southeasterly pressure gradient flow between a strong high pressure over the mid-Atlantic and a weak surface low in the northwestern Gulf led to several days of coastal flooding across southeastern Louisiana. Reports varied from each day, with the most impacts during high tide cycles.
Source: NOAA National Weather Service Storm Events Database (event 960579). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in St. Charles County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.