Pennsylvania, 1993

Hail and Damaging Winds in Pennsylvania, May 12, 1993

May 12, 1993 · 21 events in 11 counties and zones

15 hail, 6 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 21 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$500
Crop damage
None recorded
Events
21

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

15 hail, 6 thunderstorm wind. Local standard time, as filed.

Hail, Washington

When
May 12, 1:06 PM EST
Where
Washington County, Washington
Measured
0.75 in hail
Coordinates
40.189, -80.248 (the zone’s center; the record gives no point)

Three-quarter inch hail was reported at Washington.

Hail, Beaver

When
May 12, 1:11 PM EST
Where
Beaver County, Ambridge
Measured
0.75 in hail
Coordinates
40.682, -80.349 (the zone’s center; the record gives no point)

Dime-size hail was reported in Ambridge.

Hail, Beaver

When
May 12, 1:14 PM EST
Where
Beaver County, New Brighton
Measured
0.75 in hail
Coordinates
40.682, -80.349 (the zone’s center; the record gives no point)

Nickel-size hail was reported in New Brighton.

Thunderstorm Wind, Washington

When
May 12, 1:16 PM EST
Where
Washington County, Finleyville
Measured
52 kt (60 mph)
Coordinates
40.189, -80.248 (the zone’s center; the record gives no point)

A 60 mph wind gust was reported in Finleyville.

Hail, Westmoreland

When
May 12, 1:19 PM EST
Where
Westmoreland County, Latrobe
Measured
0.75 in hail
Coordinates
40.311, -79.467 (the zone’s center; the record gives no point)

Three-quarter inch hail was reported in Latrobe.

Thunderstorm Wind, Washington

When
May 12, 1:20 PM EST
Where
Washington County, Roscoe
Measured
52 kt (60 mph)
Coordinates
40.189, -80.248 (the zone’s center; the record gives no point)

A wind gust to 60 mph was reported at Roscoe.

Hail, Fayette

When
May 12, 1:22 PM EST
Where
Fayette County, Uniontown
Measured
1 in hail
Coordinates
39.920, -79.647 (the zone’s center; the record gives no point)

One inch diameter hail was reported at Uniontown.

Hail, Allegheny

When
May 12, 1:24 PM EST
Where
Allegheny County, Pittsburgh
Measured
0.75 in hail
Coordinates
40.469, -79.981 (the zone’s center; the record gives no point)

Three-quarter inch hail was reported in the Penn Hills area of Pittsburgh.

Hail, Westmoreland

When
May 12, 1:24 PM EST
Where
Westmoreland County, Latrobe
Measured
1 in hail
Coordinates
40.311, -79.467 (the zone’s center; the record gives no point)

One inch diameter hail was reported at Latrobe.

Hail, Beaver

When
May 12, 1:28 PM EST
Where
Beaver County, Big Beaver
Measured
1 in hail
Coordinates
40.682, -80.349 (the zone’s center; the record gives no point)

Thunderstorm Wind, Beaver

When
May 12, 1:29 PM EST
Where
Beaver County, New Brighton
Measured
61 kt (70 mph)
Coordinates
40.682, -80.349 (the zone’s center; the record gives no point)

One inch diameter hail was reported in North Sewickley Township. A wind gust to 70 mph was reported in New Brighton. Trees were downed at Industry.

Thunderstorm Wind, Fayette

When
May 12, 1:38 PM EST
Where
Fayette County, Everson
Measured
61 kt (70 mph)
Coordinates
39.920, -79.647 (the zone’s center; the record gives no point)

A wind gust to 70 mph was reported at Everson.

Hail, Franklin

When
May 12, 1:48 PM EST
Where
Franklin County, Mercersburg
Measured
0.75 in hail
Coordinates
39.927, -77.721 (the zone’s center; the record gives no point)

Hail, Franklin

When
May 12, 1:48 PM EST
Where
Franklin County, Mercersburg
Measured
0.75 in hail
Coordinates
39.927, -77.721 (the zone’s center; the record gives no point)

Three-quarter inch hail was reported at Mercersburg.

Hail, Butler

When
May 12, 1:52 PM EST
Where
Butler County, Evans City
Measured
0.75 in hail
Coordinates
40.912, -79.913 (the zone’s center; the record gives no point)

Three-quarter inch hail was reported at Evans City.

Thunderstorm Wind, Westmoreland

When
May 12, 1:54 PM EST
Where
Westmoreland County, Latrobe
Measured
52 kt (60 mph)
Property damage
$500
Coordinates
40.311, -79.467 (the zone’s center; the record gives no point)

Winds to 60 mph, and downed trees, were reported at Latrobe. Several windows were also blown out.

Hail, Cambria

When
May 12, 2:16 PM EST
Where
Cambria County, Johnstown
Measured
1.5 in hail
Coordinates
40.495, -78.714 (the zone’s center; the record gives no point)

One-half inch hail was observed at Johnstown. Three-quarter inch hail was reported at Ebensburg.

Hail, Indiana

When
May 12, 2:16 PM EST
Where
Indiana County
Measured
1 in hail
Coordinates
40.652, -79.087 (the zone’s center; the record gives no point)

Dime to quarter size hail was reported at Homer City.

Hail, York

When
May 12, 4:20 PM EST
Where
York County, Hanover
Measured
0.75 in hail
Coordinates
39.920, -76.726 (the zone’s center; the record gives no point)

Large limbs were broken off trees on the west side of Hanover. Also, many trees were downed east of Hanover at 1652 EST. At least 2500 York county customers briefly lost electrical power as falling trees and tree limbs took down power lines.

Thunderstorm Wind, York

When
May 12, 4:40 PM EST
Where
York County, Hanover
Coordinates
39.920, -76.726 (the zone’s center; the record gives no point)

Large limbs were broken off trees on the west side of Hanover. Also, many trees were downed east of Hanover at 1652 EST. At least 2500 York county customers briefly lost electrical power as falling trees and tree limbs took down power lines.

Hail, Clearfield

When
May 12, 7:10 PM EST
Where
Clearfield County, Clearfield
Measured
1.75 in hail
Coordinates
41.000, -78.474 (the zone’s center; the record gives no point)

Golf ball-size hail was reported just east of Clearfield.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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 1993Every state in 1993This day in weather historyWarnings in Pennsylvania, May 1993

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: 10345262, 10343773, 10343774, 10345263, 10345433, 10345264, 10345786, 10341401, 10345434, 10343775, 10343776, 10345814, 10345861, 10345862, 10343867, 10345435, 10343536, 10345680, 10345382, 10345383, 10343590.