New Hampshire, 1998

Damaging Winds in New Hampshire, August 24, 1998

August 24, 1998 · NWS GYX · 2 events in 1 county or zone

Severe thunderstorm winds knocked downed trees on roads and power lines in southeastern New Hampshire. In Windham, numerous roads were closed due to the falling trees.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS GYX wrote it up.

Severe thunderstorm winds knocked downed trees on roads and power lines in southeastern New Hampshire. In Windham, numerous roads were closed due to the falling trees. Roads were also closed in Londonderry and Brentwood. In Brentwood, one house was damaged by a falling tree. Based on the tree damage, wind speeds were estimated to be greater than 58 mph.

The radar

The Boston radar (KBOX), 95 km away, was scanning. The volume nearest the first event began at 20:47 UTC.

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Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Rockingham

When
August 24, 3:45 PM EST to 3:55 PM EST
Where
Rockingham County, Windham to Londonderry
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
42.800, -71.300

Thunderstorm Wind, Rockingham

When
August 24, 4:10 PM EST to 4:20 PM EST
Where
Rockingham County, Brentwood
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
42.970, -71.070

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New Hampshire in 1998Every state in 1998This day in weather historyWarnings in New Hampshire, August 1998

Sources

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: 5676163, 5676164.