Flood — Merrimack, New Hampshire

2025-05-31 · near Contoocook, Merrimack, New Hampshire

Event narrative

Heavy rain up to 3 inches caused overland flooding along Pine Street in Contoocoook.

Wider weather episode

Strong low pressure system brought widespread soaking rains to the region, with most areas total rainfall amounts generally 1-1.25, with locally higher amounts in southern and central New Hampshire. A pivot point of the storm system occurred between Milford and Contoocook, resulting in rainfall amounts between 2 to 4 inches. This caused a handful of road closures due to flooding as antecedent rainfall over the past month allowed for saturated soils.

View location on OpenStreetMap → (43.2100, -71.7500)

Source: NOAA Storm Events Database, event_id 1268157. Narrative written by the NWS forecast office that issued the report.