A cold front moved into a moist airmass, resulting in heavy rainfall as well as a couple of isolated severe thunderstorms.
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 BOX wrote it up.
A cold front moved into a moist airmass, resulting in heavy rainfall as well as a couple of isolated severe thunderstorms.
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 Boston/Norton, MA wrote its last area forecast discussion before the first event at Jul 29, 8:17 PM EST, 25 minutes earlier.
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</html>The Boston radar (KBOX), 137 km away, was scanning. The volume nearest the first event began at 01:42 UTC.
2 thunderstorm wind. Local standard time, as filed.
A large tree on Old Spofford Road was downed by thunderstorm winds.
Trees on Route 9 were downed by thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Hampshire in 2009Every state in 2009This day in weather historyWarnings in New Hampshire, July 2009
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 2026-10-01. Each event’s entry at NCEI: 188967, 188970.