Jul 14, 2020
A strong upper level low pressure system moved toward New Hampshire from the west during the early morning hours on the 14th. Strong to severe thunderstorms developed in the wee hours of the morning and moved eastward. Numerous storms trained over the same region in hilly terrain leading to localized flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 914035). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Grafton County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.