An unseasonably warm and moist airmass for early March worked into southern New Hampshire during the day on March 7th. This allowed for increased instability ahead of an approaching cold front.
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.
An unseasonably warm and moist airmass for early March worked into southern New Hampshire during the day on March 7th. This allowed for increased instability ahead of an approaching cold front. A surface low pressure system and associated cold front tracked across the region from the Ohio River valley during the evening. Strong westerly surface winds were advecting cold polar air behind it. A continues fine line of low-topped thunderstorms developed on the cold frontal boundary across southwest New Hampshire. This line progressed eastward through the evening, downing numerous trees and powerlines before weakening as it reached the Merrimack River Valley.
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 Mar 7, 3:22 PM EST, 5 hours 51 minutes earlier.
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</html>The Boston radar (KBOX), 137 km away, was scanning. The volume nearest the first event began at 02:14 UTC.
14 thunderstorm wind. Local standard time, as filed.
A line of thunderstorms and its associated severe wind gust downed a tree on a house in Winchester.
A line of thunderstorms and its associated severe wind gust downed trees in West Swanzey.
A line of thunderstorms and its associated severe wind gust downed a few trees in Keene with one falling on a house.
A line of thunderstorms and its associated severe wind gust downed trees and wires in Deering.
A line of thunderstorms and its associated severe wind gust downed trees and wires in South Weare.
Convective wind gust measurement from reliable sited CWOP at 1300ft elevation.
A line of thunderstorms and its associated severe wind gust downed trees and wires in Milton.
A line of thunderstorms and its associated severe wind gust downed trees and wires in Mt Vernon.
A line of thunderstorms and its associated severe wind gust downed trees and wires in Milford.
A line of thunderstorms and its associated severe wind gust downed multiple trees and wires in Mt Vernon.
A line of thunderstorms and its associated severe wind gust downed trees in Epping.
A line of thunderstorms and its associated severe wind gust downed trees and wires in Kingston.
A line of thunderstorms and its associated severe wind gust downed power lines on Ashworth Rd. in Hampton Falls.
A line of thunderstorms and its associated severe wind gust downed several trees and wires with observed power flashes in Seabrook as the squall line moved through.
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, March 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 2026-09-30. Each event’s entry at NCEI: 1016025, 1016027, 1016028, 1016044, 1016031, 1016036, 1016043, 1016042, 1016041, 1016032, 1016040, 1016039, 1016038, 1016037.