Pennsylvania, 1999

Damaging Winds in Pennsylvania, May 24, 1999

May 24, 1999 · NWS PBZ · 9 events in 5 counties and zones

9 thunderstorm wind, 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
0
Injuries
0
Property damage
$25,000
Crop damage
None recorded
Events
9

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), 21 km away, was scanning. The volume nearest the first event began at 15:06 UTC.

Open the radar archive at this moment

Event by event

9 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Allegheny

When
May 24, 10:05 AM EST
Where
Allegheny County, Glenshaw
Measured
52 kt (60 mph)
Property damage
$1,000
Reported by
EMERGENCY MANAGER
Coordinates
40.550, -79.970

Thunderstorm winds estimated at 60 MPH downed power lines on Volner Drive.

Thunderstorm Wind, Armstrong

When
May 24, 10:27 AM EST
Where
Armstrong County, Slate Lick
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.770, -79.630

Thunderstorm winds downed several trees and power lines.

Thunderstorm Wind, Armstrong

When
May 24, 10:48 AM EST
Where
Armstrong County, Ford City
Measured
50 kt (58 mph)
Property damage
$1,000
Reported by
EMERGENCY MANAGER
Coordinates
40.770, -79.530

Thunderstorm winds downed a large tree.

Thunderstorm Wind, Westmoreland

When
May 24, 11:04 AM EST
Where
Westmoreland County, Lower Burrell
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.600, -79.730

Thunderstorm winds downed several trees.

Thunderstorm Wind, Jefferson

When
May 24, 11:15 AM EST
Where
Jefferson County, Punxsutawney
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
EMERGENCY MANAGER
Coordinates
40.950, -78.970

Thunderstorm winds downed a large tree onto a parked car.

Thunderstorm Wind, Indiana

When
May 24, 11:15 AM EST
Where
Indiana County, Homer City
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.550, -79.150

Thunderstorm winds downed several trees.

Thunderstorm Wind, Indiana

When
May 24, 11:18 AM EST
Where
Indiana County, Hillsdale
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.750, -78.880

Thunderstorm winds downed several trees.

Thunderstorm Wind, Armstrong

When
May 24, 11:20 AM EST
Where
Armstrong County, Clinton
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.720, -79.600

Thunderstorm winds downed several trees and power lines.

Thunderstorm Wind, Indiana

When
May 24, 11:20 AM EST
Where
Indiana County, Home
Measured
50 kt (58 mph)
Property damage
$3,000
Reported by
EMERGENCY MANAGER
Coordinates
40.730, -79.100

Thunderstorm winds downed several trees.

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.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Pennsylvania in 1999Every state in 1999This day in weather historyWarnings in Pennsylvania, May 1999

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: 5699143, 5699144, 5699240, 5699241, 5699242, 5699244, 5699245, 5699243, 5699246.