Thunderstorm Wind, Lawrence
- When
- July 7, 5:05 PM CST
- Where
- Lawrence County
- Coordinates
- 41.000, -80.350
Tornado and Hail in Pennsylvania, July 7, 1977
3 thunderstorm wind, 1 tornado, 1 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
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
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
3 thunderstorm wind, 1 tornado, 1 hail. Local standard time, as filed.
Tornado, Allegheny
- When
- July 7, 6:30 PM CST
- Where
- Allegheny County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 40.500, -79.820
Thunderstorm Wind, Fayette
- When
- July 7, 6:45 PM CST
- Where
- Fayette County
- Coordinates
- 39.950, -79.470
Thunderstorm Wind, Allegheny
- When
- July 7, 6:45 PM CST
- Where
- Allegheny County
- Coordinates
- 40.500, -79.820
Hail, Crawford
- When
- July 7, 7:00 PM CST
- Where
- Crawford County
- Measured
- 1.75 in hail
- Coordinates
- 41.630, -79.680
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
- Tornadoes and Hail in Nebraska, July 7, 1977
- Tornado and Damaging Wind in Indiana, July 7, 1977
- Hail and Damaging Winds in Ohio, July 7, 1977
- Hail and Damaging Winds in Virginia, July 7, 1977
- Tornadoes and Hail in Colorado, July 7, 1977
- Damaging Winds in Kansas, July 7, 1977
- Hail in Minnesota, July 7, 1977
- Damaging Wind in Kentucky, July 7, 1977
- Damaging Wind in Maryland, July 7, 1977
- Tornado in Florida, July 7, 1977
- Damaging Wind in Missouri, July 7, 1977
- Hail in Maine, July 7, 1977
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: 10118011, 10118012, 10118013, 10118014, 10118015.