Oct 10, 2019
The combination of low pressure sitting off the New Jersey coast and strong high pressure over southeast Canada resulted in persistent north or northeast winds over the Chesapeake Bay. These persistent north or northeast winds, along with high waves, allowed water levels to rise throughout the bay. Widespread minor tidal flooding was observed by late on the 10th before water levels reached moderate flood thresholds in most areas on the bay by the afternoon of the 11th. Winds rapidly diminished b
Source: NOAA National Weather Service Storm Events Database (event 859728). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lancaster County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.