Flash Flood — Coos, New Hampshire

2023-07-18 · near Errol Arpt, Coos, New Hampshire

Event narrative

Heavy rain caused a washout on Corser Brook Road in Errol.

Wider weather episode

Scattered showers and thunderstorms with heavy rainfall developed across the White Mountains and areas northward on the afternoon of the 18th. Moist air supported torrential rainfall rates between 2 to 3 inches an hour, all of which fell over saturated soils. Localized flash flooding resulted where storms trained over the same locations.

View location on OpenStreetMap → (44.8390, -71.2096)

Source: NOAA Storm Events Database, event_id 1123807. Narrative written by the NWS forecast office that issued the report.