TornadoLookup

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Allegheny County, Pennsylvania

Tornadoes, hail, floods and severe storms recorded here between 1954 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.

27
Tornado reports
445
Hail reports
626
Floods since 1996
2,594
All events
14
Deaths
$454.3M
Property damage

Tornado paths in Allegheny County

The part of each tornado’s path NOAA recorded in this county, 27 in all. Zoom in and the paths widen to their surveyed width.

EF0EF1EF2EF3EF4EF5Unrated

Year by year

19542026
Hover or tap a bar to see that year.
All storm eventsTornadoes

NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.

Most significant events

The strongest tornadoes, deadliest events and biggest damage here, up to 50.

June 3, 1980 · Allegheny, Pennsylvania
Tornado F4 Tornado20 injuries, $250.0M damage
August 3, 1963 · Allegheny, Pennsylvania
Tornado F3 Tornado2 deaths, 70 injuries, $25.0M damage
April 29, 2025 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind1 death, 1 injury
At approximately 5:08 PM based off of radar coverage, a line of storms crossing the Pittsburgh area with very strong, damaging wind gusts caused a tree to fall and kill a man as he was walking back to his house in Ross Township.
June 16, 2022 · Allegheny, Pennsylvania
Excessive Heat Excessive Heat1 death
A 3 month old male died after being left several hours in a hot car along Fort Couch Road in Upper Saint Clair, PA. The maximum high temperature at KAGC (11 miles from the incident) was 92F; heat index for the day was close to 100 degrees. Article: https://www.nbcnews.com/news/us…
August 19, 2011 · Allegheny, Pennsylvania
Flash Flood Flash Flood4 deaths, 1 injury
A NWS storm survey found that 2.5 inches of rain fell in one hour in a very urbanized 4.8 sq mi watershed just east of downtown Pittsburgh. Severe flash flooding developed on Washington Blvd resulting in four fatalities and up to 15 water rescues. A mother and two daughters were …
September 17, 2004 · Allegheny, Pennsylvania
Flood Flood1 death, 92 injuries, $26.0M damage
May 31, 2002 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind1 death, 54 injuries, $10.0M damage
January 2, 1999 · Allegheny, Pennsylvania
Winter Storm Winter Storm2 deaths, 1 injury
July 1, 1997 · Allegheny, Pennsylvania
Flash Flood Flash Flood1 death, $10.0M damage
A nearly stationary thunderstorm formed over the eastern part of Allegheny County during the evening of July 1. The storm dropped near 4 inches of rain in about 90 minutes over a 4 square-mile area. The resulting flash flood was centered in a small watershed in and near Pitcairn.…
June 19, 1996 · Allegheny, Pennsylvania
Flash Flood Flash Flood1 death
December 11, 2002 · Allegheny, Pennsylvania
Ice Storm Ice Storm40 injuries
June 30, 1998 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind10 injuries, $41.0M damage
A microburst with winds up to 85 MPH moved diagonally from northwest to southeast across Allegheny County, leaving a wide swath of damage in its wake. These winds produced an estimated $41 million in damage across the county. Over 125,000 people across the county had their power …
June 2, 1998 · Allegheny, Pennsylvania
Tornado F1 Tornado50 injuries, $13.0M damage
October 6, 2024 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind$2.0M damage
Numerous powerlines were reported down around the Ramblewood area.
October 6, 2024 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind$1.5M damage
Trees were reported down along Bakersfield Road, near the Pittsburgh North Golf Club.
October 6, 2024 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind$1.5M damage
Trees were reported down along Valencia Road.
October 6, 2024 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind$2.0M damage
Babcock Boulevard in Shaler Township was closed due to downed trees and powerlines.
October 6, 2024 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind$1.5M damage
A few small trunks and were snapped along Rachel Carson Trail.
July 2, 2018 · Allegheny, Pennsylvania
Flash Flood Flash Flood$1.3M damage
The 911 Call Center reported flooded intersection near Squaw Run Road/Field Club Road and at the intersection Fairview Road and Old Mill Road. An emergency manager also reported rushing water near Woodland Farms Road. Fox Chapel Stone Supply INC worker says the store took on 2 ft…
June 20, 2018 · Allegheny, Pennsylvania
Flash Flood Flash Flood1 injury, $10.0M damage
The 911 Call Center has reported that a number of roads in southern Bethel Park have been flooded and/or impassable. This roads include: Glendale Drive, Logan Road, O'Neill Drive, Dashwood Drive (vehicle was stuck in water). Water entered the Trolley Stop Inn restaurant, cars in …
August 9, 2007 · Allegheny, Pennsylvania
Flash Flood Flash Flood$15.0M damage
Heavy rain caused flash flooding in the Millvale area and much of the North Hills area of Pittsburgh as Girtys Run came out of it's banks. Over 900 homes were affected by the flooding as well as over 200 businesses. Infrasturcture owned by local municipalities sustained over 4 mi…
January 31, 2001 · Allegheny, Pennsylvania
Flash Flood Flash Flood$2.0M damage
Ice jams moving down the Youghiogheny River produced minor flooding from Boston down to the McKeesport area. The movement of the ice itself caused the main problem, as it tore apart and destroyed 210 boat docks at the McKeesport Marina on its way out into the Monongahela River
August 6, 2000 · Allegheny, Pennsylvania
Flash Flood Flash Flood$10.0M damage
Widespread flash flooding problems were reported across the county, with 51 of the county's 130 municipalities reporting some degree of storm impact. Of those 51 municipalities, 15 reported significant impact, including flooding of streets and basements, washed-away property and …
June 19, 1996 · Allegheny, Pennsylvania
Flash Flood Flash Flood$3.0M damage
January 19, 1996 · Allegheny, Pennsylvania
Flood Flood$1.9M damage
May 22, 1983 · Allegheny, Pennsylvania
Tornado F2 Tornado$2.5M damage
June 28, 2026 · Allegheny, Pennsylvania
Flash Flood Flash Flood
State official reported a car stuck in floodwaters along Thompson Run Road.
June 28, 2026 · Allegheny, Pennsylvania
Flash Flood Flash Flood
State official reported water over Rodi Road.
June 28, 2026 · Allegheny, Pennsylvania
Flash Flood Flash Flood
Department of Highways reported that Route 48 was flooded at the intersection with Route 130.
June 14, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Tree down on the road near Westinghouse Bridge.
June 14, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Large tree down across Brighton Road near Giant Eagle.
June 14, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Several large trees down.
June 14, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
June 14, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Trees down.
June 11, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Flaugherty Run Road Blocked by at least one fallen tree just north of Broadhead Road.
June 11, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A tree fell across the road and onto two people. Injuries unknown.
June 11, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Large tree limbs down damaging a tent along Ridge Road near Chatham University.
June 11, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Large tree down.
June 11, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Tree down on wires along Longvue Drive.
May 24, 2026 · Allegheny, Pennsylvania
Flash Flood Flash Flood
State official reported flooding of a home along Aurora Drive.
March 31, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Pittsburgh International Airport ASOS.
March 31, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Mesonet station 1 SE Robinson Township.
March 31, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Tree down on power lines.
March 31, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Damage to multiple trees in the Haler Heights area of McKeesport near Renziehausen Park.
March 31, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
Several trees snapped in half in a backyard.
March 26, 2026 · Allegheny, Pennsylvania
Flash Flood Flash Flood
The ramp from Interstate 376 onto Route 885 was closed due to flooding.
March 17, 2026 · Allegheny, Pennsylvania
Winter Storm Winter Storm
Accumulation ranging from 2-5 inches with the highest amount of 7.5 inches reported by a trained spotter 3 miles east of Curtisville.
March 13, 2026 · Allegheny, Pennsylvania
High Wind High Wind
Allegheny County Airport measured 69 mph gust.
March 13, 2026 · Allegheny, Pennsylvania
High Wind High Wind
Pittsburgh International Airport measured 66 mph gust.
March 7, 2026 · Allegheny, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A tree and wires were reported down across Joan Drive.
Events by year, as a table
YearEventsTornadoes
2026390
20251920
20241827
2023920
2022800
20211693
20201031
20191230
20181060
2017871
2016570
20151090
2014700
20131710
20121221
2011510
2010410
2009230
2008270
2007601
2006160
2005340
2004370
2003561
2002390
2001210
2000330
1999290
1998782
1997360
1996570
1995320
1994190
199320
1992121
1991150
1990120
198910
198870
1987140
1986110
1985130
198460
198361
198210
198141
198081
197980
197830
197721
197651
197570
1974110
197340
197210
197120
197081
196930
196840
196740
196610
196510
196410
196361
196210
196120
196010
195910
195850
195730
195631
195530
195411