Dec 25, 2020
A strong area of low pressure impacted the region Christmas Eve into Christmas Day. Moderate to heavy rain developed out ahead of the approaching cold front in an anomalously moist environment, leading to river flooding along the Yantic River. Precipitable water values on the 12Z 12/25 sounding from Upton, NY were around 1.5 inches, a record for the date based on the Storm Prediction Center's sounding climatology. This resulted in widespread rainfall totals of 1.5-2 inches across southeastern Co
Source: NOAA National Weather Service Storm Events Database (event 931300). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in New London County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.