Hail and Damaging Winds in Pennsylvania, April 14, 2024

Name: Hail and Damaging Winds in Pennsylvania, April 14, 2024
Start: 2024-04-14T16:02
End: 2024-04-14T21:00
Location: Pennsylvania

April 14, 2024 · NWS PBZ · 76 events in 9 counties and zones

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: None recorded
Crop damage: None recorded
Events: 76

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.

What happened

The episode as NWS PBZ wrote it up.

A line of convection developed along passing cold front and trough during the late afternoon of April 14th over Lake Erie. The line matured and slowly progressed south and created severe hail and flooding due to training. Effective shear was maximized between 18Z and 00Z over northern PA with a low-level jet originated from west to east. Surface instability likely ranged from 500J/kg to 1000J/kg and shear from the surface to 500mb likely ranged between 45kt to 55kts.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before the first event at Apr 14, 2:59 PM EST, 1 hour 3 minutes earlier.

Area forecast discussion, Apr 14, 2:59 PM EST, 1 hour 3 minutes before

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Hazardous weather outlook, Apr 14, 11:42 AM EST, 4 hours 20 minutes before

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The radar

The Pittsburgh radar (KPBZ), 94 km away, was scanning. The volume nearest the first event began at 21:00 UTC.

Open the radar archive at this moment

Event by event

72 hail, 4 thunderstorm wind. Local standard time, as filed.

Hail, Mercer

When: April 14, 4:02 PM EST
Where: Mercer County, 2.59 mi NW of Transfer
Measured: 0.75 in hail
Reported by: Public
Coordinates: 41.360, -80.460

Nickel sized hail.

Hail, Mercer

When: April 14, 4:12 PM EST
Where: Mercer County, Sandy Lake
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 41.350, -80.080

Nickel sized hail reported.

Thunderstorm Wind, Mercer

When: April 14, 4:18 PM EST
Where: Mercer County, 1.04 mi W of Stoneboro
Measured: 56 kt (64 mph) estimated gust
Reported by: Public
Coordinates: 41.330, -80.140

Two 80 foot pines trees fell down.

Hail, Venango

When: April 14, 4:19 PM EST
Where: Venango County, 1.04 mi E of Oil City
Measured: 0.75 in hail
Reported by: Public
Coordinates: 41.430, -79.700

Nickel sized hail reported.

Hail, Mercer

When: April 14, 4:30 PM EST
Where: Mercer County, 0.52 mi E of Jackson Center
Measured: 1 in hail
Reported by: Public
Coordinates: 41.270, -80.140

One inch hail reported.

Hail, Lawrence

When: April 14, 4:55 PM EST
Where: Lawrence County, 1.25 mi ESE of Pulaski
Measured: 0.75 in hail
Reported by: Fire Department/Rescue
Coordinates: 41.110, -80.430

Nickel sized hail.

Hail, Mercer

When: April 14, 5:05 PM EST
Where: Mercer County, 0.86 mi SW of West Middlesex
Measured: 0.75 in hail
Reported by: Public
Coordinates: 41.170, -80.460

Nickel sized hail.

Hail, Armstrong

When: April 14, 5:07 PM EST
Where: Armstrong County, 1.04 mi E of Parker City
Measured: 0.88 in hail
Reported by: Public
Coordinates: 41.100, -79.680

Half sightly less than a quarter.

Hail, Lawrence

When: April 14, 5:07 PM EST
Where: Lawrence County, 2.69 mi ESE of New Wilmington
Measured: 1 in hail
Reported by: Public
Coordinates: 41.120, -80.330

Quarter sized hail.

Hail, Lawrence

When: April 14, 5:08 PM EST
Where: Lawrence County, 1.25 mi ESE of Pulaski
Measured: 1 in hail
Reported by: Emergency Manager
Coordinates: 41.110, -80.430

Quarter sized hail.

Hail, Lawrence

When: April 14, 5:10 PM EST
Where: Lawrence County, 2.07 mi N of Wilmington Jct
Measured: 1.75 in hail
Reported by: Public
Coordinates: 41.110, -80.330

Hail reported by public.

Hail, Lawrence

When: April 14, 5:10 PM EST
Where: Lawrence County, 2.69 mi ESE of New Wilmington
Measured: 1.75 in hail
Reported by: Public
Coordinates: 41.120, -80.330

Hail reported by public.

Hail, Lawrence

When: April 14, 5:11 PM EST
Where: Lawrence County, 2.69 mi ESE of New Wilmington
Measured: 1 in hail
Reported by: Public
Coordinates: 41.120, -80.330

Hail reported by the public.

Hail, Lawrence

When: April 14, 5:15 PM EST
Where: Lawrence County, 0.87 mi SE of Valet
Measured: 2 in hail
Reported by: Public
Coordinates: 41.110, -80.260

Hail reported by the public.

Hail, Lawrence

When: April 14, 5:15 PM EST
Where: Lawrence County, 2.69 mi ESE of New Wilmington
Measured: 2 in hail
Reported by: Trained Spotter
Coordinates: 41.120, -80.330

Hail reported by trained spotter.

Hail, Beaver

When: April 14, 5:16 PM EST
Where: Beaver County, 0.87 mi NE of Fallston
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 40.740, -80.290

Hail reported by trained spotter.

Hail, Lawrence

When: April 14, 5:16 PM EST
Where: Lawrence County, 1.25 mi ESE of Pulaski
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 41.110, -80.430

Hail reported by trained spotter.

Hail, Lawrence

When: April 14, 5:20 PM EST
Where: Lawrence County, 2.07 mi S of Brent
Measured: 1 in hail
Reported by: Public
Coordinates: 41.090, -80.170

Hail reported along Old Ash Road.

Hail, Lawrence

When: April 14, 5:21 PM EST
Where: Lawrence County, 0.87 mi NW of Plain Grove
Measured: 1 in hail
Reported by: Public
Coordinates: 41.060, -80.160

Hail reported along Georgetown Road.

Hail, Butler

When: April 14, 5:22 PM EST
Where: Butler County, 0.52 mi W of Jacksville
Measured: 0.75 in hail
Reported by: Public
Coordinates: 41.020, -80.130

Hail reported by the public.

Hail, Butler

When: April 14, 5:25 PM EST
Where: Butler County, 0.52 mi W of Slippery Rock
Measured: 1.75 in hail
Reported by: Public
Coordinates: 41.070, -80.060

Hail reported by the public.

Hail, Butler

When: April 14, 5:32 PM EST
Where: Butler County, 1.25 mi WNW of Hallston
Measured: 2 in hail
Reported by: Public
Coordinates: 41.030, -80.020

Hail slightly larger than a golf ball reported along Route 173.

Hail, Butler

When: April 14, 5:32 PM EST
Where: Butler County, 0.52 mi W of Slippery Rock
Measured: 1.75 in hail
Reported by: Public
Coordinates: 41.070, -80.060

Hail reported by the public.

Hail, Butler

When: April 14, 5:36 PM EST
Where: Butler County, 1.71 mi ESE of Jacksville
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.010, -80.090

Hail reported by trained spotter.

Hail, Butler

When: April 14, 5:37 PM EST
Where: Butler County, 1.25 mi ESE of Euclid
Measured: 1.25 in hail
Reported by: Public
Coordinates: 40.990, -79.900

Hail reported by the public.

Hail, Butler

When: April 14, 5:37 PM EST
Where: Butler County, 1.25 mi ENE of Euclid
Measured: 1 in hail
Reported by: Public
Coordinates: 41.010, -79.900

Hail reported by the public.

Hail, Butler

When: April 14, 5:38 PM EST
Where: Butler County, 1.48 mi NNE of Jamisonville
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.970, -79.890

Hail reported by the public.

Hail, Jefferson

When: April 14, 5:40 PM EST
Where: Jefferson County, 0.52 mi W of Big Run
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 40.970, -78.880

Hail reported by trained spotter.

Thunderstorm Wind, Jefferson

When: April 14, 5:40 PM EST
Where: Jefferson County, 0.52 mi W of Big Run
Measured: 52 kt (60 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 40.970, -78.880

Trained spotter reported power lines down.

Hail, Butler

When: April 14, 5:45 PM EST
Where: Butler County, 0.52 mi W of Karns City
Measured: 1 in hail
Reported by: Public
Coordinates: 41.000, -79.730

Hail reported by the public.

Hail, Jefferson

When: April 14, 5:45 PM EST
Where: Jefferson County, 1.73 mi SE of Big Run
Measured: 0.88 in hail
Reported by: Public
Coordinates: 40.950, -78.850

Hail reported by the public.

Hail, Butler

When: April 14, 5:47 PM EST
Where: Butler County, 0.87 mi SW of Karns City
Measured: 1 in hail
Reported by: Public
Coordinates: 40.990, -79.730

Hail reported by the public.

Thunderstorm Wind, Armstrong

When: April 14, 5:50 PM EST
Where: Armstrong County, 0.52 mi E of Dayton
Measured: 52 kt (60 mph) estimated gust
Reported by: State Official
Coordinates: 40.880, -79.240

Tree reported a road.

Hail, Armstrong

When: April 14, 5:54 PM EST
Where: Armstrong County, 2.32 mi NNE of Craigsville
Measured: 1 in hail
Reported by: Public
Coordinates: 40.880, -79.630

Hail reported by the public.

Thunderstorm Wind, Armstrong

When: April 14, 5:55 PM EST
Where: Armstrong County, 2.95 mi SSE of Frogtown
Measured: 52 kt (60 mph) estimated gust
Reported by: State Official
Coordinates: 40.910, -79.630

Trees reported on a roadway.

Hail, Butler

When: April 14, 6:13 PM EST
Where: Butler County, 0.87 mi SE of Slippery Rock
Measured: 1 in hail
Reported by: Public
Coordinates: 41.060, -80.040

Hail reported by the public.

Hail, Butler

When: April 14, 6:13 PM EST
Where: Butler County, 0.52 mi W of Slippery Rock
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 41.070, -80.060

Hail reported by trained spotter.

Hail, Clarion

When: April 14, 6:14 PM EST
Where: Clarion County, 1.25 mi ESE of Rimersburg
Measured: 1 in hail
Reported by: Public
Coordinates: 41.040, -79.500

Hail reported by the public.

Hail, Lawrence

When: April 14, 6:35 PM EST
Where: Lawrence County, 0.52 mi E of Union Vly
Measured: 1.5 in hail
Reported by: Trained Spotter
Coordinates: 40.930, -80.320

Hail reported by trained spotter.

Hail, Lawrence

When: April 14, 6:35 PM EST
Where: Lawrence County, 1.25 mi ESE of Pulaski
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.110, -80.430

Trained spotter reported hail.

Hail, Butler

When: April 14, 6:37 PM EST
Where: Butler County, 0.52 mi W of Karns City
Measured: 1 in hail
Reported by: Public
Coordinates: 41.000, -79.730

Hail reported by the public.

Hail, Clarion

When: April 14, 6:40 PM EST
Where: Clarion County, 1.56 mi W of Limestone
Measured: 1.25 in hail
Reported by: Public
Coordinates: 41.130, -79.360

Hail reported by the public.

Hail, Lawrence

When: April 14, 6:41 PM EST
Where: Lawrence County, 1.25 mi ENE of Walmo
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.040, -80.350

Hail reported by the trained spotter.

Hail, Lawrence

When: April 14, 6:41 PM EST
Where: Lawrence County, 2.69 mi ESE of New Wilmington
Measured: 1.25 in hail
Reported by: Trained Spotter
Coordinates: 41.120, -80.330

Hail reported by trained spotter.

Hail, Clarion

When: April 14, 6:42 PM EST
Where: Clarion County, 0.52 mi W of East Brady
Measured: 1 in hail
Reported by: Public
Coordinates: 40.980, -79.610

Hail reported by the public.

Hail, Lawrence

When: April 14, 6:42 PM EST
Where: Lawrence County, 2.08 mi E of Walmo
Measured: 1 in hail
Reported by: Public
Coordinates: 41.030, -80.330

Hail reported the public.

Hail, Lawrence

When: April 14, 6:52 PM EST
Where: Lawrence County, New Castle
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.000, -80.350

Hail reported by a trained spotter.

Hail, Lawrence

When: April 14, 6:52 PM EST
Where: Lawrence County, 1.56 mi E of Walmo
Measured: 1.25 in hail
Reported by: Public
Coordinates: 41.030, -80.340

Hail reported by the public.

Hail, Lawrence

When: April 14, 6:53 PM EST
Where: Lawrence County, New Castle
Measured: 1.5 in hail
Reported by: Public
Coordinates: 41.000, -80.350

Hail reported by the public.

Hail, Lawrence

When: April 14, 6:53 PM EST
Where: Lawrence County, 1.25 mi WSW of Wilmington Jct
Measured: 1 in hail
Reported by: Public
Coordinates: 41.070, -80.350

Hail reported by the public.

Hail, Clarion

When: April 14, 6:54 PM EST
Where: Clarion County, 2.32 mi SSE of Reidsburg
Measured: 1.25 in hail
Reported by: Trained Spotter
Coordinates: 41.120, -79.380

Hail reported by the trained spotter.

Hail, Jefferson

When: April 14, 6:57 PM EST
Where: Jefferson County, 0.69 mi S of Brookville
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.160, -79.080

Hail reported by a trained spotter.

Hail, Butler

When: April 14, 7:05 PM EST
Where: Butler County, 0.52 mi W of Portersville
Measured: 1 in hail
Reported by: Public
Coordinates: 40.930, -80.140

Hail reported by the public.

Hail, Lawrence

When: April 14, 7:08 PM EST
Where: Lawrence County, 1.25 mi ESE of Pulaski
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.110, -80.430

Hail reported by a trained spotter.

Hail, Butler

When: April 14, 7:18 PM EST
Where: Butler County, 1.57 mi W of Muddy Creek
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 40.970, -79.980

Hail reported by a trained spotter.

Hail, Butler

When: April 14, 7:38 PM EST
Where: Butler County, 1.04 mi E of North Washington
Measured: 1 in hail
Reported by: Public
Coordinates: 41.050, -79.810

Hail reported by the public.

Hail, Jefferson

When: April 14, 7:40 PM EST
Where: Jefferson County, 0.52 mi E of Sykesville
Measured: 1 in hail
Reported by: Public
Coordinates: 41.050, -78.820

Hail reported by the public.

Hail, Clarion

When: April 14, 7:53 PM EST
Where: Clarion County, 0.87 mi SE of Fairmount City
Measured: 1 in hail
Reported by: Public
Coordinates: 41.010, -79.310

Hail reported by the public.

Hail, Butler

When: April 14, 8:00 PM EST
Where: Butler County, 0.87 mi NW of Mt Chestnut
Measured: 1.25 in hail
Reported by: Trained Spotter
Coordinates: 40.890, -79.980

Hail reported by a trained spotter.

Hail, Butler

When: April 14, 8:03 PM EST
Where: Butler County, 0.52 mi E of Mt Chestnut
Measured: 1.75 in hail
Reported by: Public
Coordinates: 40.880, -79.960

Hail reported by the public.

Hail, Butler

When: April 14, 8:04 PM EST
Where: Butler County, 0.87 mi NE of Eidenau
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.810, -80.110

Hail reported by a trained spotter.

Hail, Butler

When: April 14, 8:10 PM EST
Where: Butler County, 0.87 mi NW of Mt Chestnut
Measured: 1.25 in hail
Reported by: Public
Coordinates: 40.890, -79.980

Hail reported by the public.

Hail, Butler

When: April 14, 8:13 PM EST
Where: Butler County, 1.05 mi E of Meridian
Measured: 1 in hail
Reported by: Public
Coordinates: 40.850, -79.930

Hail reported by the public.

Hail, Butler

When: April 14, 8:14 PM EST
Where: Butler County, 0.87 mi SW of Homeacre
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.860, -79.930

Hail reported by the public.

Hail, Butler

When: April 14, 8:14 PM EST
Where: Butler County, 1.25 mi ESE of Mt Chestnut
Measured: 1 in hail
Reported by: Public
Coordinates: 40.870, -79.950

Hail reported by the public.

Hail, Butler

When: April 14, 8:15 PM EST
Where: Butler County, 0.52 mi W of Meridian
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.850, -79.960

Hail reported by the public.

Hail, Butler

When: April 14, 8:15 PM EST
Where: Butler County, 1.25 mi ESE of Homeacre
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 40.860, -79.900

Trained spotter reported hail.

Hail, Butler

When: April 14, 8:15 PM EST
Where: Butler County, 0.87 mi SW of Homeacre
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.860, -79.930

Retired NWS employee reported hail.

Hail, Butler

When: April 14, 8:15 PM EST
Where: Butler County, 1.04 mi W of Homeacre
Measured: 0.88 in hail
Reported by: Public
Coordinates: 40.870, -79.940

Public reported hail.

Hail, Butler

When: April 14, 8:15 PM EST
Where: Butler County, 2.09 mi SW of Fisher Hgts
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.910, -79.980

Public reported hail.

Hail, Butler

When: April 14, 8:16 PM EST
Where: Butler County, 1.25 mi ESE of Homeacre
Measured: 1 in hail
Reported by: Public
Coordinates: 40.860, -79.900

Public reported hail.

Hail, Butler

When: April 14, 8:16 PM EST
Where: Butler County, 0.87 mi NE of Homeacre
Measured: 1 in hail
Reported by: Public
Coordinates: 40.880, -79.910

Public reported hail.

Hail, Butler

When: April 14, 8:25 PM EST
Where: Butler County, 0.52 mi W of Great Belt
Measured: 0.88 in hail
Reported by: Public
Coordinates: 40.800, -79.810

Public reported hail.

Hail, Armstrong

When: April 14, 8:33 PM EST
Where: Armstrong County, 1.48 mi SSE of Mahoning
Measured: 1 in hail
Reported by: Public
Coordinates: 40.910, -79.440

Public reported a mix of different sized hail stones.

Hail, Beaver

When: April 14, 8:48 PM EST
Where: Beaver County, 1.48 mi SSW of Lovi
Measured: 1 in hail
Reported by: Public
Coordinates: 40.660, -80.160

Public reported hail.

Hail, Allegheny

When: April 14, 9:00 PM EST
Where: Allegheny County, 0.69 mi N of Bradford Woods
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.640, -80.080

Public reported hail.

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

Every storm in Pennsylvania in 2024 Every state in 2024 This day in weather history Warnings in Pennsylvania, April 2024

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: 1169456, 1169457, 1169535, 1169458, 1169459, 1169460, 1169461, 1169462, 1169463, 1169464, 1169465, 1169466, 1169467, 1169468, 1169469, 1169470, 1169471, 1169472, 1169473, 1169474, 1169475, 1169476, 1169477, 1169478, 1169479, 1169480, 1169481, 1169482, 1169537, 1169483, 1169484, 1169485, 1169538, 1169486, 1169539, 1169487, 1169488, 1169489, 1169490, 1169492, and more.