Tornado, Erie
- When
- September 24, 5:15 PM CST
- Where
- Erie County
- Rating
- F1
- Path width
- 33 yd
- Injuries
- 2 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 41.920, -80.180
Tornadoes in Pennsylvania, September 24, 1977
4 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
- 2
- Property damage
- $3.0 million
- Crop damage
- None recorded
- Events
- 4
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
4 tornado. Local standard time, as filed.
Tornado, Lawrence
- When
- September 24, 6:45 PM CST
- Where
- Lawrence County
- Rating
- F2
- Path width
- 33 yd
- Property damage
- $2.5 million
- Coordinates
- 41.000, -80.350
Tornado, Mercer
- When
- September 24, 7:00 PM CST
- Where
- Mercer County
- Path width
- 33 yd
- Property damage
- $250,000
- Coordinates
- 41.330, -80.120
Tornado, Venango
- When
- September 24, 7:05 PM CST
- Where
- Venango County
- Path width
- 33 yd
- Property damage
- $25,000
- Coordinates
- 41.220, -79.900
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in Pennsylvania in 1977Every state in 1977This day in weather historyThe tornado archive for Pennsylvania, 1977
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: 10116923, 10116924, 10116925, 10116926.