Flash Flood — Grafton, New Hampshire

2024-07-30 · near Landaff, Grafton, New Hampshire

Event narrative

In Landaff, Mill Brook came out of banks and flooded Brook Lane which caused a partial road washout.

Wider weather episode

An area of low pressure supported widespread showers and thunderstorms on July 30th and 31st. Slow storm motions allowed heavy rain to fall over the same area, with high rainfall rates over 2 inches per hour. The most significant flooding occurred over Grafton County where saturated ground conditions and steep terrain supported flash flooding in Piermont.

View location on OpenStreetMap → (44.1870, -71.9198)

Source: NOAA Storm Events Database, event_id 1192530. Narrative written by the NWS forecast office that issued the report.