Thunderstorm Wind, Northumberland
- When
- July 17, 2:00 PM CST
- Where
- Northumberland County
- Coordinates
- 41.080, -76.880
Tornadoes and Hail in Pennsylvania, July 17, 1988
13 thunderstorm wind, 2 tornado, 2 hail, as filed by the National Weather Service.
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
- 2
- Property damage
- $500,000
- Crop damage
- None recorded
- Events
- 17
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.
Event by event
13 thunderstorm wind, 2 tornado, 2 hail. Local standard time, as filed.
Tornado, Montgomery
- When
- July 17, 3:29 PM EST
- Where
- Montgomery County
- Rating
- F1
- Path length
- 1.8 mi
- Path width
- 67 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 40.270, -75.650
Thunderstorm Wind, Carbon
- When
- July 17, 2:40 PM CST
- Where
- Carbon County
- Measured
- 54 kt (62 mph)
- Coordinates
- 40.830, -75.670
Thunderstorm Wind, Schuylkill
- When
- July 17, 2:50 PM CST
- Where
- Schuylkill County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.680, -76.000
Thunderstorm Wind, Berks
- When
- July 17, 3:00 PM CST
- Where
- Berks County
- Measured
- 55 kt (63 mph)
- Coordinates
- 40.350, -75.920
Tornado, Chester
- When
- July 17, 4:15 PM EST
- Where
- Chester County
- Rating
- F1
- Path length
- 2.5 mi
- Path width
- 100 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 39.730, -75.970
Thunderstorm Wind, Northampton
- When
- July 17, 3:18 PM CST
- Where
- Northampton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 40.730, -75.400
Hail, Lehigh
- When
- July 17, 3:25 PM CST
- Where
- Lehigh County
- Measured
- 0.75 in hail
- Coordinates
- 40.670, -75.620
Thunderstorm Wind, Berks
- When
- July 17, 3:30 PM CST
- Where
- Berks County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.400, -75.700
Thunderstorm Wind, Lehigh
- When
- July 17, 3:35 PM CST
- Where
- Lehigh County
- Measured
- 57 kt (66 mph)
- Coordinates
- 40.530, -75.400
Thunderstorm Wind, Bucks
- When
- July 17, 3:40 PM CST
- Where
- Bucks County
- Coordinates
- 40.320, -75.130
Thunderstorm Wind, Montgomery
- When
- July 17, 3:50 PM CST
- Where
- Montgomery County
- Measured
- 61 kt (70 mph)
- Coordinates
- 40.150, -75.280
Thunderstorm Wind, Northampton
- When
- July 17, 3:55 PM CST
- Where
- Northampton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.670, -75.230
Thunderstorm Wind, Bucks
- When
- July 17, 3:55 PM CST
- Where
- Bucks County
- Coordinates
- 40.170, -75.020
Hail, Chester
- When
- July 17, 3:58 PM CST
- Where
- Chester County
- Measured
- 1 in hail
- Coordinates
- 40.070, -75.870
Thunderstorm Wind, Philadelphia
- When
- July 17, 4:20 PM CST
- Where
- Philadelphia County
- Coordinates
- 39.950, -75.170
Thunderstorm Wind, Lancaster
- When
- July 17, 4:22 PM CST
- Where
- Lancaster County
- Coordinates
- 40.120, -75.970
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.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- 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
- Hail and Damaging Winds in New York, July 17, 1988
- Damaging Winds in New Jersey, July 17, 1988
- Damaging Winds in Kentucky, July 17, 1988
- Tornadoes and Hail in Wyoming, July 17, 1988
- Damaging Winds in Massachusetts, July 17, 1988
- Hail and Damaging Winds in Oklahoma, July 17, 1988
- Damaging Winds in Vermont, July 17, 1988
- Hail and Damaging Winds in South Dakota, July 17, 1988
- Damaging Winds in Kansas, July 17, 1988
- Damaging Winds in Georgia, July 17, 1988
- Damaging Winds in New Hampshire, July 17, 1988
- Damaging Winds in Texas, July 17, 1988
More
Every storm in Pennsylvania in 1988Every state in 1988This day in weather historyThe tornado archive for Pennsylvania, 1988Warnings in Pennsylvania, July 1988
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: 10115512, 10115518, 10115513, 10115514, 10115515, 10115526, 10115516, 10115517, 10115519, 10115520, 10115521, 10115522, 10115523, 10115524, 10115525, 10115527, 10115528.