Dec 18, 2023
A strengthening coastal low pressure system brought several rounds of rain to the region Sunday night into Monday (December 17-18th). Total rainfall amounts across the forecast area varied from about 1.50 inches up to 7.00 inches. The heaviest rains fell across southern Delaware up through the coastal plain of New Jersey. This heavy rain fell on already saturated soils. As a result, river flooding was prevalent across the Passaic Basin, Raritan Basin, and southeast Pennsylvania basins including
Source: NOAA National Weather Service Storm Events Database (event 1153838). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Montgomery County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.