Dec 16, 2020
Low pressure tracked into the Ohio Valley before transferring its energy to a coastal low along the Mid-Atlantic Coast. The coastal low intensified as it moved to the northeast. At the same time, high pressure was located to the north. Therefore, significant wintry precipitation fell across the area in the form of snow, sleet, and freezing rain. Snowfall amounts averaged around 6 to 12 inches west of Interstate 95 with 2 to 4 inches around Interstate 95. Freezing rain also occurred with around t
Source: NOAA National Weather Service Storm Events Database (event 934126). 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.