A very hot and unstable airmass was in place across the region on August 4th with heat index values reaching into the mid-90s during the afternoon hours. A weak mid-level trough provided the region with enough instability for thunderstorms to develop across the Connecticut River Valley during the late afternoon.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GYX wrote it up.
A very hot and unstable airmass was in place across the region on August 4th with heat index values reaching into the mid-90s during the afternoon hours. A weak mid-level trough provided the region with enough instability for thunderstorms to develop across the Connecticut River Valley during the late afternoon. The storms moved east through the early evening bring strong damaging wind gusts to parts of Southern and Central New Hampshire.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Gray, ME wrote its last area forecast discussion before the first event at Aug 4, 3:01 PM EST, 2 hours 34 minutes earlier.
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</html>The Burlington radar (KCXX), 153 km away, was scanning. The volume nearest the first event began at 22:32 UTC.
6 thunderstorm wind, 2 hail. Local standard time, as filed.
Convective outflow winds associated with a severe thunderstorm downed branches and a few trees on Old Acworth Stage Rd east of Charlestown, NH.
A severe thunderstorm dropped hail up to the size of quarters for four minutes on Lovers Lane in Charlestown, NH.
Convective outflow winds associated with a severe thunderstorm downed a tree that damaged a small outhouse building.
Convective outflow winds associated with a severe thunderstorm downed several large branches and some small trees on NH HWY 10 south of Goshen, NH.
A severe thunderstorm dropped hail up to the size of quarters on HWY 12Z in North Charlestown, NH.
Convective outflow winds associated with a severe thunderstorm downed a large pine tree onto wires along Rt 4 in Lebanon, NH.
Convective outflow winds associated with a severe thunderstorm downed a large tree across Fowler River Rd in Alexandria, NH.
Convective outflow winds associated with a severe thunderstorm downed a few trees and many branches east of Conway, NH.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Hampshire in 2022Every state in 2022This day in weather historyWarnings in New Hampshire, August 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1055498, 1055496, 1055499, 1055500, 1055497, 1055507, 1055504, 1055508.