Oct 30, 2017
Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in widespread flash flooding. Many roads were flooded and washed out after 3 to 6 inches of rain fell in less than 12 hours.
Source: NOAA National Weather Service Storm Events Database (event 725596). 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.