Aug 4, 2020
Tropical Storm Isaias moved up the east coast, passing through southern Maryland on the morning of Tuesday, August 4th, 2020, spawning several tornadoes as well as flooding rain and tropical storm force winds. ||Storm total rainfall ranged from 2 to 4 inches near Interstate 95 to as much as 9 inches in Calvert County east of Interstate 95. The heavy rain led to numerous incidents of flooding and flash flooding, especially near and east of Interstate 95. ||The highest sustained wind of 46 knots w
Source: NOAA National Weather Service Storm Events Database (event 918700). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in St. Mary's County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.