New Jersey, 1997

Hail and Damaging Wind in New Jersey, July 18, 1997

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

Very powerful severe thunderstorms caused considerable wind damage across east central and northeast Hunterdon County and injured one person. Wind gusts were estimated in excess of 80 mph in Readington Township.

Where it happened

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  • 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
1
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.

Very powerful severe thunderstorms caused considerable wind damage across east central and northeast Hunterdon County and injured one person. Wind gusts were estimated in excess of 80 mph in Readington Township. Downed trees caused most of the damage to homes and vehicles. In Flemington, a driver suffered spine and head injuries after a tree landed on its vehicle. In Readington Township, portions of the Interstate Iron Works building collapsed. High winds damaged the roof and several sections fell inside the plant. Eight main roads within the township were closed because of fallen trees. An uprooted walnut tree pulled up a tombstone from 1863. Trees came down on two occupied vehicles, but no one was hurt. At least nine vehicles within the township were damaged by fallen trees. In Clinton Township, there was considerable utility pole damage on U.S. Route 22. Three occupied vehicles were hit by fallen trees, but there were no injuries. The hardest hit streets in Clinton included Halsted, Lehigh and West Main.Throughout central and northwest New Jersey about 78,000 (out of a possible 490,000) GPU customers lost power. About 50,000 customers still had no power the morning of the 19th (Saturday). The number was down to 16,000 the (Sunday) evening of the 20th (9,000 in Hunterdon County), 1,000 the afternoon of the 21st (Monday) and the final 94 (in Warren County) were back on line on the 22nd (Tuesday).

The radar

The Philadelphia radar (KDIX), 87 km away, was scanning. The volume nearest the first event began at 23:02 UTC.

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Event by event

1 thunderstorm wind, 1 hail. Local standard time, as filed.

Thunderstorm Wind, Hunterdon

When
July 18, 6:00 PM EST
Where
Hunterdon County, Clinton to Readington
Measured
70 kt (81 mph)
Injuries
1 direct, 0 indirect
Coordinates
40.630, -74.920

Hail, Hunterdon

When
July 18, 6:00 PM EST
Where
Hunterdon County, Whitehouse
Measured
0.88 in hail
Coordinates
40.620, -74.750

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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: 5614510, 5614511.