Pennsylvania, 1991

Tornadoes and Hail in Pennsylvania, May 6, 1991

May 6, 1991 · NWS HAR · 59 events in 29 counties and zones

55 thunderstorm wind, 2 hail, 2 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

Open the live radar over this ground

The toll

Deaths
1
Injuries
5
Property damage
$253,000
Crop damage
None recorded
Events
59

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

55 thunderstorm wind, 2 hail, 2 tornado. Local standard time, as filed.

Thunderstorm Wind, Washington

When
May 6, 11:20 AM CST
Where
Washington County
Coordinates
40.220, -80.200

Thunderstorm Wind, Greene

When
May 6, 11:30 AM CST
Where
Greene County
Coordinates
39.900, -80.200

Thunderstorm Wind, Washington

When
May 6, 11:38 AM CST
Where
Washington County
Coordinates
40.030, -80.050

Thunderstorm Wind, Washington

When
May 6, 12:00 PM CST
Where
Washington County
Coordinates
40.180, -80.250

Thunderstorm Wind, Allegheny

When
May 6, 12:01 PM CST
Where
Allegheny County
Coordinates
40.330, -79.980

Thunderstorm Wind, Washington

When
May 6, 12:01 PM CST
Where
Washington County
Coordinates
40.220, -79.980

Thunderstorm Wind, Westmoreland

When
May 6, 12:10 PM CST
Where
Westmoreland County
Injuries
1 direct, 0 indirect
Coordinates
40.570, -79.770

Thunderstorm Wind, Cambria

When
May 6, 12:10 PM CST
Where
Cambria County
Coordinates
40.330, -78.920

Thunderstorm Wind, Allegheny

When
May 6, 12:15 PM CST
Where
Allegheny County
Coordinates
40.430, -79.830

Thunderstorm Wind, Armstrong

When
May 6, 12:18 PM CST
Where
Armstrong County
Coordinates
40.680, -79.670

Thunderstorm Wind, Somerset

When
May 6, 12:38 PM CST
Where
Somerset County
Coordinates
40.050, -79.220

Thunderstorm Wind, Somerset

When
May 6, 12:48 PM CST
Where
Somerset County
Coordinates
40.180, -79.080

Thunderstorm Wind, Westmoreland

When
May 6, 12:48 PM CST
Where
Westmoreland County
Coordinates
40.430, -79.700

Thunderstorm Wind, Jefferson

When
May 6, 1:12 PM CST
Where
Jefferson County
Coordinates
40.980, -78.830

Thunderstorm Wind, Northampton

When
May 6, 1:15 PM CST
Where
Northampton County
Deaths
1 direct, 0 indirect
Coordinates
40.800, -75.350

Thunderstorm Wind, Bedford

When
May 6, 1:17 PM CST
Where
Bedford County
Coordinates
39.830, -78.500

Thunderstorm Wind, Bedford

When
May 6, 1:19 PM CST
Where
Bedford County
Coordinates
40.270, -78.500

Thunderstorm Wind, Clearfield

When
May 6, 1:26 PM CST
Where
Clearfield County
Coordinates
41.030, -78.450

Thunderstorm Wind, Bedford

When
May 6, 1:34 PM CST
Where
Bedford County
Coordinates
39.830, -78.500

Thunderstorm Wind, Fulton

When
May 6, 1:40 PM CST
Where
Fulton County
Coordinates
39.930, -78.000

Thunderstorm Wind, Blair

When
May 6, 1:40 PM CST
Where
Blair County
Coordinates
40.480, -78.400

Thunderstorm Wind, Bedford

When
May 6, 1:40 PM CST
Where
Bedford County
Coordinates
40.020, -78.500

Thunderstorm Wind, Cambria

When
May 6, 1:44 PM CST
Where
Cambria County
Coordinates
40.400, -78.620

Thunderstorm Wind, Cambria

When
May 6, 1:44 PM CST
Where
Cambria County
Coordinates
40.300, -78.970

Hail, Huntingdon

When
May 6, 1:45 PM CST
Where
Huntingdon County
Measured
0.75 in hail
Coordinates
40.180, -77.950

Thunderstorm Wind, Clinton

When
May 6, 1:47 PM CST
Where
Clinton County
Coordinates
41.150, -77.430

Thunderstorm Wind, Centre

When
May 6, 1:50 PM CST
Where
Centre County
Measured
52 kt (60 mph)
Coordinates
40.780, -77.850

Hail, Franklin

When
May 6, 2:02 PM CST
Where
Franklin County
Measured
0.75 in hail
Coordinates
39.750, -77.580

Thunderstorm Wind, Franklin

When
May 6, 2:15 PM CST
Where
Franklin County
Measured
57 kt (66 mph)
Coordinates
39.930, -77.670

Thunderstorm Wind, Franklin

When
May 6, 2:20 PM CST
Where
Franklin County
Measured
61 kt (70 mph)
Coordinates
39.750, -77.580

Thunderstorm Wind, Cumberland

When
May 6, 2:20 PM CST
Where
Cumberland County
Measured
52 kt (60 mph)
Coordinates
40.130, -77.450

Thunderstorm Wind, Adams

When
May 6, 2:30 PM CST
Where
Adams County
Coordinates
39.750, -77.080

Thunderstorm Wind, Clinton

When
May 6, 2:33 PM CST
Where
Clinton County
Coordinates
41.130, -77.480

Tornado, Lancaster

When
May 6, 3:40 PM EST
Where
Lancaster County
Rating
F2
Path length
1 mi
Path width
100 yd
Injuries
3 direct, 0 indirect
Property damage
$250,000
Coordinates
40.080, -76.670

Thunderstorm Wind, Cumberland

When
May 6, 2:55 PM CST
Where
Cumberland County
Measured
57 kt (66 mph)
Coordinates
40.230, -76.950

Thunderstorm Wind, Adams

When
May 6, 3:00 PM CST
Where
Adams County
Coordinates
39.830, -77.230

Thunderstorm Wind, York

When
May 6, 3:00 PM CST
Where
York County
Coordinates
39.770, -76.680

Thunderstorm Wind, Dauphin

When
May 6, 3:02 PM CST
Where
Dauphin County
Coordinates
40.270, -76.870

Thunderstorm Wind, Clinton

When
May 6, 3:03 PM CST
Where
Clinton County
Coordinates
41.130, -77.430

Thunderstorm Wind, Huntingdon

When
May 6, 3:05 PM CST
Where
Huntingdon County
Coordinates
40.650, -77.950

Tornado, York

When
May 6, 3:10 PM CST
Where
York County
Rating
F0
Path length
0.3 mi
Path width
50 yd
Property damage
$3,000
Coordinates
39.980, -76.730

Thunderstorm Wind, Perry

When
May 6, 3:15 PM CST
Where
Perry County
Coordinates
40.420, -77.180

Thunderstorm Wind, Lancaster

When
May 6, 3:20 PM CST
Where
Lancaster County
Coordinates
40.170, -76.400

Thunderstorm Wind, York

When
May 6, 3:25 PM CST
Where
York County
Coordinates
39.800, -76.980

Thunderstorm Wind, Schuylkill

When
May 6, 3:25 PM CST
Where
Schuylkill County
Injuries
1 direct, 0 indirect
Coordinates
40.670, -76.180

Thunderstorm Wind, Lancaster

When
May 6, 3:30 PM CST
Where
Lancaster County
Coordinates
40.000, -76.350

Thunderstorm Wind, Lancaster

When
May 6, 3:30 PM CST
Where
Lancaster County
Coordinates
40.180, -76.180

Thunderstorm Wind, Northumberland

When
May 6, 3:30 PM CST
Where
Northumberland County
Coordinates
40.870, -76.770

Thunderstorm Wind, Lebanon

When
May 6, 3:30 PM CST
Where
Lebanon County
Coordinates
40.250, -76.470

Thunderstorm Wind, York

When
May 6, 3:30 PM CST
Where
York County
Coordinates
40.080, -76.770

Thunderstorm Wind, Lebanon

When
May 6, 3:30 PM CST
Where
Lebanon County
Coordinates
40.370, -76.270

Thunderstorm Wind, Columbia

When
May 6, 3:40 PM CST
Where
Columbia County
Coordinates
41.000, -76.450

Thunderstorm Wind, Columbia

When
May 6, 3:45 PM CST
Where
Columbia County
Coordinates
41.200, -76.380

Thunderstorm Wind, Luzerne

When
May 6, 3:45 PM CST
Where
Luzerne County
Coordinates
41.200, -76.320

Thunderstorm Wind, Dauphin

When
May 6, 3:48 PM CST
Where
Dauphin County
Measured
55 kt (63 mph)
Coordinates
40.220, -76.850

Thunderstorm Wind, Luzerne

When
May 6, 4:00 PM CST
Where
Luzerne County
Coordinates
41.180, -76.230

Thunderstorm Wind, Schuylkill

When
May 6, 4:05 PM CST
Where
Schuylkill County
Coordinates
40.630, -76.380

Thunderstorm Wind, Luzerne

When
May 6, 4:30 PM CST
Where
Luzerne County
Coordinates
41.300, -75.770

Thunderstorm Wind, Berks

When
May 6, 5:20 PM CST
Where
Berks County
Measured
80 kt (92 mph)
Coordinates
40.320, -76.130

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Thunderstorm Wind, Northampton1991-05-06Direct

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

More

Every storm in Pennsylvania in 1991Every state in 1991This day in weather historyThe tornado archive for Pennsylvania, 1991Warnings in Pennsylvania, May 1991

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: 10115309, 10115310, 10115311, 10115312, 10115313, 10115314, 10115315, 10115316, 10115317, 10115318, 10115319, 10115320, 10115321, 10115322, 10115323, 10115324, 10115325, 10115326, 10115327, 10115328, 10115329, 10115330, 10115331, 10115332, 10115333, 10115334, 10115335, 10115336, 10115337, 10116185, 10116186, 10116187, 10116188, 10114658, 10116189, 10116190, 10116191, 10116192, 10116193, 10116194, and more.