Thunderstorm Wind in Sullivan County, New Hampshire

Thunderstorm Wind June 6, 2025 · Sullivan County, New Hampshire

60 mph

Estimated gust (52 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Severe thunderstorm outflow winds downed numerous smaller trees and branches on Cornish Stage Rd. and Cornish Flats.

The wider storm

A stationary front stalled over southern New Hampshire on the evening of June 6 into midday on June 7th. Repeated rounds of heavy rain and thunderstorms brought up to 4 inches of rainfall to areas across Merrimack and Hillsborough Counties between 3 and 7 PM. The heavy rain with rates measured over 2 inches per hour at times, was sufficient to cause flash flooding with multiple roads flooded, some with washouts, and some property damage. Numerous severe thunderstorms also developed on the afternoon of June 6th as amble instability and moisture interacted with the stalled front boundary. Large hail and damaging winds were reported.

Began near Cornish Flat (43.5000, -72.2800).

Source: NOAA Storm Events Database, event 1269719. Narratives are written by the National Weather Service forecast office that issued the report.

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