Thunderstorm Wind, Morris
- When
- July 9, 4:55 PM EST to 5:05 PM EST
- Where
- Morris County, Mendham to Pequannock
- Coordinates
- 40.780, -74.620
Damaging Wind in New Jersey, July 9, 1997
A severe thunderstorm downed trees and power lines across central and eastern Morris County. About 2,500 homes and businesses lost power.
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
The toll
- Deaths
- 0
- 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 severe thunderstorm downed trees and power lines across central and eastern Morris County. About 2,500 homes and businesses lost power. Downed trees were reported in Boonton, Mendham, Long Hill and Riverdale. The downed trees forced the closure of several roads in Boonton.
The radar
The Philadelphia radar (KDIX), 94 km away, was scanning. The volume nearest the first event began at 21:54 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Hail and Damaging Winds in West Virginia, July 9, 1997
- Flash Flood and Damaging Winds in New York, July 9, 1997
- Hail in Nebraska, July 9, 1997
- Lightning Strike in New Hampshire, July 9, 1997
- Flash Flood and Hail in Kansas, July 9, 1997
- Damaging Winds in New York, July 9, 1997
- Flash Flooding and Hail in Mississippi, July 9, 1997
- Flood in Ohio, July 9 to 10, 1997
- Damaging Winds in Georgia, July 9, 1997
- Damaging Wind and Lightning Strike in Pennsylvania, July 9, 1997
- Lightning Strike in Maine, July 9, 1997
- Flash Flood and Damaging Winds in Massachusetts, July 9, 1997
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: 5614350.