Thunderstorm Wind, Erie
- When
- July 20, 10:03 AM CST
- Where
- Erie County
- Measured
- 58 kt (67 mph)
- Coordinates
- 42.080, -80.180
Tornado and Hail in Pennsylvania, July 20, 1983
3 thunderstorm wind, 3 hail, 1 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
- 0
- Property damage
- $250,000
- Crop damage
- None recorded
- Events
- 7
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, 3 hail, 1 tornado. Local standard time, as filed.
Hail, Clarion
- When
- July 20, 12:15 PM CST
- Where
- Clarion County
- Measured
- 1.75 in hail
- Coordinates
- 41.200, -79.420
Thunderstorm Wind, Clarion
- When
- July 20, 12:15 PM CST
- Where
- Clarion County
- Coordinates
- 41.200, -79.420
Tornado, Armstrong
- When
- July 20, 1:15 PM CST
- Where
- Armstrong County
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 10 yd
- Property damage
- $250,000
- Coordinates
- 40.800, -79.300
Hail, Fayette
- When
- July 20, 2:00 PM CST
- Where
- Fayette County
- Measured
- 3 in hail
- Coordinates
- 40.050, -79.670
Thunderstorm Wind, Fayette
- When
- July 20, 2:00 PM CST
- Where
- Fayette County
- Coordinates
- 39.980, -79.780
Hail, Westmoreland
- When
- July 20, 2:05 PM CST
- Where
- Westmoreland County
- Measured
- 1 in hail
- Coordinates
- 40.100, -79.600
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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
- Tornado in Florida, July 20, 1983
- Tornado and Damaging Wind in Alabama, July 20, 1983
- Damaging Winds in South Dakota, July 20, 1983
- Tornado and Hail in Montana, July 20, 1983
- Damaging Winds in Indiana, July 20, 1983
- Hail and Damaging Winds in West Virginia, July 20, 1983
- Damaging Winds in New York, July 20, 1983
- Damaging Winds in Virginia, July 20, 1983
- Damaging Winds in North Dakota, July 20, 1983
- Damaging Winds in Georgia, July 20, 1983
- Damaging Winds in Tennessee, July 20, 1983
- Damaging Winds in Wisconsin, July 20, 1983
More
Every storm in Pennsylvania in 1983Every state in 1983This day in weather historyThe tornado archive for Pennsylvania, 1983
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: 10118129, 10118130, 10118131, 10118132, 10118133, 10118134, 10118135.