New Jersey, 1997

Damaging Winds in New Jersey, July 18, 1997

July 18, 1997 · NWS PHI · 2 events in 1 county or zone

The severe thunderstorms that caused extensive damage across Warren, Hunterdon, Morris and Somerset Counties pushed a gust front of damaging winds well ahead of them. The gust front moved through Mercer County and knocked down trees and power lines in Princeton where the wind gusts were estimated at 60 mph.

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 PHI wrote it up.

The severe thunderstorms that caused extensive damage across Warren, Hunterdon, Morris and Somerset Counties pushed a gust front of damaging winds well ahead of them. The gust front moved through Mercer County and knocked down trees and power lines in Princeton where the wind gusts were estimated at 60 mph. Farther south the gust front winds also knocked down wires in Lawrenceville. Public Service Electric and Gas reported 18,000 customers lost power because of the downed wires from this gust front throughout central New Jersey.

The radar

The Philadelphia radar (KDIX), 50 km away, was scanning. The volume nearest the first event began at 23:32 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Mercer

When
July 18, 6:30 PM EST
Where
Mercer County, Princeton
Measured
52 kt (60 mph)
Coordinates
40.350, -74.670

Thunderstorm Wind, Mercer

When
July 18, 6:50 PM EST
Where
Mercer County, Lawrenceville
Coordinates
40.300, -74.730

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, July 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: 5614516, 5614517.