Thunderstorm Wind, Beaver
- When
- September 7, 7:40 AM EST
- Where
- Beaver County, Aliquippa
- Property damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.670, -80.330
Thunderstorm winds downed a tree and several power lines.
Flash Flood and Hail in Pennsylvania, September 7 to 27, 1998
13 thunderstorm wind, 4 hail, 1 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
- $120,000
- Crop damage
- None recorded
- Events
- 18
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.
The radar
The Pittsburgh radar (KPBZ), 18 km away, was scanning. The volume nearest the first event began at 12:40 UTC.
Event by event
13 thunderstorm wind, 4 hail, 1 flash flood. Local standard time, as filed.
Thunderstorm Wind, Washington
- When
- September 7, 7:58 AM EST
- Where
- Washington County, Bishop
- Property damage
- $5,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.320, -80.200
Thunderstorm winds downed several trees.
Thunderstorm Wind, Clarion
- When
- September 7, 8:08 AM EST
- Where
- Clarion County, Clarion
- Property damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.220, -79.400
Thunderstorm winds downed a large tree.
Thunderstorm Wind, Allegheny
- When
- September 7, 8:10 AM EST
- Where
- Allegheny County, Penn Hills
- Property damage
- $5,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.500, -79.820
Thunderstorm winds downed several trees.
Thunderstorm Wind, Westmoreland
- When
- September 7, 8:35 AM EST
- Where
- Westmoreland County, Greensburg
- Measured
- 52 kt (60 mph)
- Reported by
- AMATEUR RADIO
- Coordinates
- 40.300, -79.550
A spotter reported a thunderstorm gust to 60 MPH.
Thunderstorm Wind, Fayette
- When
- September 7, 8:45 AM EST
- Where
- Fayette County, 4 mi E of Connellsville
- Property damage
- $2,000
- Reported by
- AMATEUR RADIO
- Coordinates
- 40.020, -79.500
Thunderstorm winds downed several large tree limbs.
Thunderstorm Wind, Westmoreland
- When
- September 7, 8:55 AM EST
- Where
- Westmoreland County, Ligonier
- Property damage
- $2,000
- Reported by
- AMATEUR RADIO
- Coordinates
- 40.250, -79.230
Thunderstorm winds blew a large tree down onto several power lines.
Thunderstorm Wind, Fayette
- When
- September 7, 5:55 PM EST
- Where
- Fayette County, 7 mi SW of Farmington
- Property damage
- $10,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 39.730, -79.680
A microburst downed a swath of trees 50 yards wide by 200 yards long.
Flash Flood, Fayette
- When
- September 19, 4:45 PM EST to 6:00 PM EST
- Where
- Fayette County, Uniontown
- Property damage
- $50,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.920, -79.647 (the zone’s center; the record gives no point)
Flooding was reported in 15 basements, and between 10 to 15 people were rescued from their vehicles between Uniontown and Fairchance.
Thunderstorm Wind, Mercer
- When
- September 27, 3:30 PM EST
- Where
- Mercer County, Mercer
- Property damage
- $10,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.230, -80.230
Thunderstorm winds blew a tree down onto a house.
Thunderstorm Wind, Mercer
- When
- September 27, 3:50 PM EST
- Where
- Mercer County, Grove City
- Property damage
- $10,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.170, -80.080
Thunderstorm winds downed several trees, some onto powerlines. One tree fell onto a porch.
Hail, Mercer
- When
- September 27, 3:50 PM EST
- Where
- Mercer County, Grove City
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.170, -80.080
Hail, Butler
- When
- September 27, 4:02 PM EST
- Where
- Butler County, Harrisville
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.130, -80.020
Hail, Armstrong
- When
- September 27, 4:43 PM EST
- Where
- Armstrong County, Templeton
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.920, -79.470
Hail, Armstrong
- When
- September 27, 4:50 PM EST
- Where
- Armstrong County, Dayton
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.880, -79.250
Thunderstorm Wind, Armstrong
- When
- September 27, 4:50 PM EST
- Where
- Armstrong County, Dayton
- Property damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.880, -79.250
Thunderstorm winds downed several large tree limbs.
Thunderstorm Wind, Clarion
- When
- September 27, 4:55 PM EST
- Where
- Clarion County, Elk City
- Property damage
- $20,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.250, -79.500
Thunderstorm winds destroyed a shed and blew the windows out of a house. Several trees were also downed.
Thunderstorm Wind, Indiana
- When
- September 27, 5:05 PM EST
- Where
- Indiana County, Plumville
- Measured
- 52 kt (60 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.800, -79.180
A spotter reported a thunderstorm gust to 60 MPH.
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.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
- 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
- Tropical Storm in Texas, September 7 to 12, 1998
- Tornado and Hail in New York, September 7, 1998
- Damaging Wind in New Jersey, September 7, 1998
- Tornadoes and Hail in New Jersey, September 7, 1998
- Damaging Wind in New Jersey, September 7, 1998
- Damaging Wind in New Jersey, September 7, 1998
- Hail and Damaging Winds in Michigan, September 7 to 26, 1998
- Lightning Strike in Pennsylvania, September 7, 1998
- Damaging Winds in Pennsylvania, September 7, 1998
- Damaging Winds in Pennsylvania, September 7, 1998
- Hail and Damaging Winds in West Virginia, September 7, 1998
- Damaging Wind in New Jersey, September 7, 1998
More
Every storm in Pennsylvania in 1998Every state in 1998This day in weather historyWarnings in Pennsylvania, September 1998
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: 5672890, 5672891, 5672892, 5672889, 5672895, 5672893, 5672894, 5672896, 5672897, 5672900, 5672898, 5672899, 5672901, 5672902, 5672903, 5672904, 5672905, 5672906.