Tornado, Huntingdon
- When
- September 18, 3:10 PM EST
- Where
- Huntingdon County
- Rating
- F2
- Path length
- 4 mi
- Path width
- 330 yd
- Injuries
- 3 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 40.670, -77.820
Tornadoes and Hail in Pennsylvania, September 18, 1991
5 thunderstorm wind, 4 hail, 3 tornado, 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
- 3
- Property damage
- $300,000
- Crop damage
- None recorded
- Events
- 12
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
5 thunderstorm wind, 4 hail, 3 tornado. Local standard time, as filed.
Hail, Huntingdon
- When
- September 18, 3:10 PM CST
- Where
- Huntingdon County
- Measured
- 1.75 in hail
- Coordinates
- 40.700, -78.130
Hail, Centre
- When
- September 18, 3:10 PM CST
- Where
- Centre County
- Measured
- 1 in hail
- Coordinates
- 40.780, -77.780
Thunderstorm Wind, Franklin
- When
- September 18, 3:10 PM CST
- Where
- Franklin County
- Coordinates
- 39.850, -77.570
Thunderstorm Wind, Centre
- When
- September 18, 3:10 PM CST
- Where
- Centre County
- Measured
- 69 kt (79 mph)
- Coordinates
- 40.730, -77.970
Thunderstorm Wind, Centre
- When
- September 18, 4:15 PM CST
- Where
- Centre County
- Coordinates
- 40.780, -77.850
Hail, Union
- When
- September 18, 4:59 PM CST
- Where
- Union County
- Measured
- 2.5 in hail
- Coordinates
- 40.950, -76.880
Hail, Northumberland
- When
- September 18, 5:07 PM CST
- Where
- Northumberland County
- Measured
- 1 in hail
- Coordinates
- 41.020, -76.870
Thunderstorm Wind, York
- When
- September 18, 6:00 PM CST
- Where
- York County
- Coordinates
- 39.950, -76.720
Thunderstorm Wind, Columbia
- When
- September 18, 6:10 PM CST
- Where
- Columbia County
- Coordinates
- 41.070, -76.430
Tornado, Susquehanna
- When
- September 18, 7:30 PM EST
- Where
- Susquehanna County
- Rating
- F2
- Path length
- 3 mi
- Path width
- 440 yd
- Property damage
- $25,000
- Coordinates
- 41.780, -75.530
Tornado, Wayne
- When
- September 18, 7:36 PM CST
- Where
- Wayne County
- Rating
- F2
- Path length
- 1 mi
- Path width
- 440 yd
- Property damage
- $25,000
- Coordinates
- 41.780, -75.470
What these are
- 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.
- 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, September 18, 1991
- Hail and Damaging Winds in Maryland, September 18, 1991
- Damaging Wind in Tennessee, September 18, 1991
- Damaging Wind in Florida, September 18, 1991
- Damaging Wind in Kentucky, September 18, 1991
- Damaging Wind in Ohio, September 18, 1991
- Damaging Wind in Mississippi, September 18, 1991
More
Every storm in Pennsylvania in 1991Every state in 1991This day in weather historyThe tornado archive for Pennsylvania, 1991Warnings in Pennsylvania, September 1991
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: 10114232, 10114233, 10114234, 10114235, 10114236, 10114237, 10114238, 10114239, 10114240, 10114241, 10114242, 10114243.