Hail — Coos, New Hampshire

2024-06-19 · near Stark, Coos, New Hampshire

Event narrative

A severe thunderstorm dropped hail the size of half dollars on NH 110 east of Groveton.

Wider weather episode

A very hot and unstable airmass was entrenched across New Hampshire on the afternoon of June 19th. Pre-frontal trough allowed enough instability aloft for thunderstorms to developed during peak heating. Even though dynamics were weak, very high surface instability allowed for pulse-severe thunderstorms to develop. A cold front began to approach from the north and west which triggered thunderstorms across the state by mid-afternoon. Numerous storms became severe in nature with more concentrated storm coverage across the Connecticut River Valley.

View location on OpenStreetMap → (44.6100, -71.4000)

Source: NOAA Storm Events Database, event_id 1192799. Narrative written by the NWS forecast office that issued the report.