Thunderstorm Wind in Pennsylvania
Every thunderstorm wind event the National Weather Service has filed in Pennsylvania, year by year, with the most significant episodes. 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.
The most significant on the map
The most significant thunderstorm wind episodes in Pennsylvania.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 23,711
- Deaths
- 51
- Injuries
- 501
- Damage
- $293 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Tornadoes and Hail in Pennsylvania, May 31, 1985
- Tornadoes and Hail in Pennsylvania, June 3, 1980
- Tornado and Damaging Winds in Pennsylvania, August 3, 1963
- Tornadoes and Damaging Winds in Pennsylvania, July 27, 1994A rare (with respect to both time of day and intensity) tornado outbreak affected eastern Chester County the evening of the 27th. Tornadic thunderstorms affected portions of the Middle Atlantic States south of Pennsylvania earlier that evening.
- Tornadoes and Hail in Pennsylvania, July 11, 1976
- Flash Flooding and Flooding in Pennsylvania, August 19, 2011A slow moving cold front and a moist unstable airmass combined to produce scattered severe thunderstorms and flash flooding across eastern Ohio and Western Pennsylvania.
- Tornadoes and Hail in Pennsylvania, June 2, 1998For the second time in three days, significant severe weather including tornadoes affected northeastern Pennsylvania. The primary focusing mechanisms were a strong mid level shortwave and surface cold front that approached the region during the evening of the 2nd.
- Hail and Damaging Winds in Pennsylvania, June 3, 2020An area of thunderstorms, some of them severe, moved from northwest to southeast across southeastern Pennsylvania during the mid-morning hours on Wednesday, June 3rd.
- Hail and Damaging Winds in Pennsylvania, May 31, 2002A macroburst roared across eastern Allegheny and extreme western Westmoreland counties during the early evening hours of May 31st. This macroburst produced an approximately 10-mile long path of damage from the straight-line winds, which were estimated as high as 105 MPH.
- Tornadoes and Hail in Pennsylvania, July 15, 1992
- Damaging Winds in Pennsylvania, April 29, 2025A widespread, long-lived thunderstorm line (bow echo) raced across Ohio and western Pennsylvania on the afternoon and early evening of 29 April 2025. The gusts associated with the line of storms reached above 80 MPH at times, producing widespread damage.
- Tornadoes and Hail in Pennsylvania, June 18, 1970
- Tornado and Hail in Pennsylvania, July 26, 2012Low pressure tracked east-northeast from the Lower Great Lakes region into the Northeast states, while a cold front trailed southwestward from the surface low through the Ohio Valley and Southern Plains states.
- Tornadoes and Damaging Winds in Pennsylvania, July 23, 1978
- Tornado and Damaging Winds in Pennsylvania, March 22, 1955
- Tornadoes and Hail in Pennsylvania, July 1 to 31, 1999A number of trees were downed.
- Tornadoes and Hail in Pennsylvania, May 6, 1991
- Tornado and Flash Flooding in Pennsylvania, November 5, 2017A cold front moved across the Ohio Valley and southern Great Lakes on the afternoon of Sunday, November 5th, 2017. Unseasonably warm and humid air was in place across the region ahead of the front.
- Damaging Winds in Pennsylvania, September 22, 2010A cold front triggered numerous severe thunderstorms across central Pennsylvania during the afternoon and evening. The strongest storms organized into intense bowing line segments and produced extensive downburst straight line wind damage and isolated one-inch diameter hail.
- Damaging Winds in Pennsylvania, November 11, 1995Several trees were down in Warren and other areas across the county.
- Tornado and Hail in Pennsylvania, May 31, 1998A violent thunderstorm produced a swath of wind damage across the northern half of Berks County and included an eight mile long strong F3 (Fujita Scale) Tornado that devastated the borough of Lyons. Seven persons were injured (five within Lyons).
- Damaging Winds in Pennsylvania, December 19, 2025A narrow line of showers and thunderstorm developed along a cold front resulting in several reports of severe winds.
- Tornadoes and Hail in Pennsylvania, May 31, 1998An intensifying storm system moved across upstate New York and into southern Quebec early in the morning on the 31st. This system dragged a warm front across northeastern Pennsylvania. Behind this front, a southerly flow of warm, moist, and unstable air quickly developed.
- Hail and Damaging Winds in Pennsylvania, June 29, 2019A squall line developed over central Pennsylvania during the afternoon of June 29, 2019. This line progressed southeastward across the area, producing wind damage until it exited the Lower Susquehanna Valley by late afternoon.
- Tornadoes and Damaging Winds in Pennsylvania, June 7, 1980
More
Thunderstorm Wind everywhereEvery kind of event in Pennsylvania
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.