New Jersey, 1997

Damaging Wind in New Jersey, August 16, 1997

August 16, 1997 · NWS PHI · 1 event in 1 county or zone

A squall line of severe thunderstorms caused widespread tree damage, mainly in the northeast half, and killed one person in Morris County. A 53 year-old-male from Denville died of a heart attack after being hospitalized for injuries sustained from being hit by a four foot wide tree limb while retrieving the mail.

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
1
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 PHI wrote it up.

A squall line of severe thunderstorms caused widespread tree damage, mainly in the northeast half, and killed one person in Morris County. A 53 year-old-male from Denville died of a heart attack after being hospitalized for injuries sustained from being hit by a four foot wide tree limb while retrieving the mail. Morris County was the second hardest hit county in northwest New Jersey this afternoon. There were so many downed wires along New Jersey State Route 10 that it looked like spaghetti to observers. Trees fell across and blocked the southbound lanes of Interstate 287. Mountain Lakes Borough had 36 reports of downed trees. In Montville Township, a 100-year-old tree punched a hole in the roof of one home. In Boonton Township one house was so badly damaged by fallen trees that authorities feared it might have to be condemned. Numerous downed trees and wires were also reported in Chatham, Denville, Montville and Rockaway. This squall line caused numerous power outages throughout the northern half of New Jersey as falling trees took down electrical wires. About 97,000 GPU customers lost power that day and 16,000 customers in Sussex and Morris Counties still did not have power restored on the morning of the 18th. Three thousand of these customers were in Montville Township.

The radar

The Philadelphia radar (KDIX), 110 km away, was scanning. The volume nearest the first event began at 21:03 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Morris

When
August 16, 4:05 PM EST to 4:15 PM EST
Where
Morris County, Mt Hope to Gillette
Measured
52 kt (60 mph)
Deaths
1 direct, 0 indirect
Coordinates
40.930, -74.520

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Thunderstorm Wind, Morris1997-08-1653MaleUnder TreeDirect

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 Jersey in 1997Every state in 1997This day in weather historyWarnings in New Jersey, August 1997

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: 5621637.