Hail and Damaging Winds in Pennsylvania, July 20, 1986

Name: Hail and Damaging Winds in Pennsylvania, July 20, 1986
Start: 1986-07-20T09:25
End: 1986-07-20T15:41
Location: Pennsylvania

July 20, 1986 · NWS PIT · 43 events in 19 counties and zones

42 thunderstorm wind, 1 hail, 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: None recorded
Crop damage: None recorded
Events: 43

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

42 thunderstorm wind, 1 hail. Local standard time, as filed.

Thunderstorm Wind, Warren

When: July 20, 9:25 AM CST
Where: Warren County
Coordinates: 41.920, -79.150

Thunderstorm Wind, Warren

When: July 20, 9:30 AM CST
Where: Warren County
Coordinates: 41.780, -79.300

Thunderstorm Wind, Warren

When: July 20, 9:55 AM CST
Where: Warren County
Coordinates: 41.850, -79.150

Thunderstorm Wind, Warren

When: July 20, 10:30 AM CST
Where: Warren County
Coordinates: 41.850, -79.150

Thunderstorm Wind, Venango

When: July 20, 11:00 AM CST
Where: Venango County
Coordinates: 41.400, -79.850

Hail, Warren

When: July 20, 11:22 AM CST
Where: Warren County
Measured: 0.75 in hail
Coordinates: 41.630, -79.130

Thunderstorm Wind, Venango

When: July 20, 11:28 AM CST
Where: Venango County
Coordinates: 41.400, -79.850

Thunderstorm Wind, Crawford

When: July 20, 11:37 AM CST
Where: Crawford County
Coordinates: 41.680, -79.880

Thunderstorm Wind, Elk

When: July 20, 11:45 AM CST
Where: Elk County
Coordinates: 41.330, -78.570

Thunderstorm Wind, Elk

When: July 20, 12:00 PM CST
Where: Elk County
Coordinates: 41.420, -78.680

Thunderstorm Wind, Cameron

When: July 20, 12:00 PM CST
Where: Cameron County
Coordinates: 41.320, -78.100

Thunderstorm Wind, McKean

When: July 20, 12:00 PM CST
Where: McKean County
Coordinates: 41.670, -78.830

Thunderstorm Wind, Forest

When: July 20, 12:00 PM CST
Where: Forest County
Coordinates: 41.480, -79.230

Thunderstorm Wind, Cameron

When: July 20, 12:00 PM CST
Where: Cameron County
Coordinates: 41.500, -78.250

Thunderstorm Wind, Forest

When: July 20, 12:15 PM CST
Where: Forest County
Coordinates: 41.580, -79.330

Thunderstorm Wind, Venango

When: July 20, 12:25 PM CST
Where: Venango County
Coordinates: 41.450, -79.570

Thunderstorm Wind, Jefferson

When: July 20, 12:26 PM CST
Where: Jefferson County
Coordinates: 41.170, -79.080

Thunderstorm Wind, Jefferson

When: July 20, 12:30 PM CST
Where: Jefferson County
Coordinates: 41.100, -78.850

Thunderstorm Wind, Clarion

When: July 20, 12:30 PM CST
Where: Clarion County
Coordinates: 41.130, -79.650

Thunderstorm Wind, Butler

When: July 20, 12:37 PM CST
Where: Butler County
Coordinates: 41.070, -80.050

Thunderstorm Wind, Armstrong

When: July 20, 12:40 PM CST
Where: Armstrong County
Coordinates: 41.100, -79.700

Thunderstorm Wind, Clarion

When: July 20, 12:50 PM CST
Where: Clarion County
Coordinates: 41.030, -79.500

Thunderstorm Wind, Butler

When: July 20, 1:00 PM CST
Where: Butler County
Coordinates: 40.700, -80.020

Thunderstorm Wind, Allegheny

When: July 20, 1:21 PM CST
Where: Allegheny County
Coordinates: 40.520, -80.170

Thunderstorm Wind, Allegheny

When: July 20, 1:21 PM CST
Where: Allegheny County
Coordinates: 40.600, -79.770

Thunderstorm Wind, Jefferson

When: July 20, 1:26 PM CST
Where: Jefferson County
Coordinates: 41.170, -79.080

Thunderstorm Wind, Jefferson

When: July 20, 1:30 PM CST
Where: Jefferson County
Coordinates: 41.100, -78.900

Thunderstorm Wind, Clarion

When: July 20, 1:30 PM CST
Where: Clarion County
Coordinates: 41.120, -79.630

Thunderstorm Wind, Clearfield

When: July 20, 1:30 PM CST
Where: Clearfield County
Coordinates: 41.030, -78.450

Thunderstorm Wind, Armstrong

When: July 20, 1:30 PM CST
Where: Armstrong County
Coordinates: 40.580, -79.570

Thunderstorm Wind, Armstrong

When: July 20, 1:40 PM CST
Where: Armstrong County
Coordinates: 41.100, -79.700

Thunderstorm Wind, Armstrong

When: July 20, 1:44 PM CST
Where: Armstrong County
Coordinates: 40.930, -79.470

Thunderstorm Wind, Armstrong

When: July 20, 1:45 PM CST
Where: Armstrong County
Coordinates: 41.020, -79.300

Thunderstorm Wind, Westmoreland

When: July 20, 2:00 PM CST
Where: Westmoreland County
Coordinates: 40.250, -79.230

Thunderstorm Wind, Westmoreland

When: July 20, 2:15 PM CST
Where: Westmoreland County
Coordinates: 40.530, -79.600

Thunderstorm Wind, Westmoreland

When: July 20, 2:33 PM CST
Where: Westmoreland County
Coordinates: 40.250, -79.230

Thunderstorm Wind, Westmoreland

When: July 20, 2:45 PM CST
Where: Westmoreland County
Coordinates: 40.300, -79.550

Thunderstorm Wind, Cumberland

When: July 20, 2:45 PM CST
Where: Cumberland County
Coordinates: 40.150, -77.280

Thunderstorm Wind, Washington

When: July 20, 2:50 PM CST
Where: Washington County
Coordinates: 40.200, -79.930

Thunderstorm Wind, Greene

When: July 20, 3:00 PM CST
Where: Greene County
Coordinates: 39.900, -80.200

Thunderstorm Wind, Westmoreland

When: July 20, 3:00 PM CST
Where: Westmoreland County
Coordinates: 40.300, -79.570

Thunderstorm Wind, Cambria

When: July 20, 3:00 PM CST
Where: Cambria County
Coordinates: 40.470, -78.720

Thunderstorm Wind, Somerset

When: July 20, 3:41 PM CST
Where: Somerset County
Coordinates: 39.980, -78.970

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.

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

The same day elsewhere

Every storm in Pennsylvania in 1986 Every state in 1986 This day in weather history Warnings in Pennsylvania, July 1986

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: 10117141, 10117142, 10117143, 10117144, 10117145, 10117146, 10117147, 10117148, 10117149, 10117150, 10117151, 10117152, 10117153, 10117154, 10117155, 10117156, 10117157, 10117158, 10117159, 10117160, 10117161, 10117162, 10117163, 10117164, 10117165, 10117166, 10117167, 10117168, 10117169, 10117170, 10117171, 10118016, 10118017, 10118018, 10118019, 10118020, 10118021, 10118022, 10118023, 10118024, and more.