Pennsylvania, 1998

Flash Flooding and Damaging Winds in Pennsylvania, June 27 to 28, 1998

June 27 to 28, 1998 · NWS PBZ · 13 events in 5 counties and zones

7 flash flood, 6 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 7 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

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The toll

Deaths
0
Injuries
0
Property damage
$152,000
Crop damage
None recorded
Events
13

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 national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

7 flash flood, 6 thunderstorm wind. Local standard time, as filed.

Flash Flood, Fayette

When
June 27, 12:54 PM EST
Where
Fayette County, Connellsville
Reported by
LAW ENFORCEMENT
Coordinates
39.920, -79.647 (the zone’s center; the record gives no point)

Minor street flooding reported in Connellsville.

Thunderstorm Wind, Fayette

When
June 27, 1:00 PM EST
Where
Fayette County, Brownsville to Brownfield
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.020, -79.900

Thunderstorm winds downed several large trees.

Thunderstorm Wind, Washington

When
June 27, 1:00 PM EST
Where
Washington County, Finleyville
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.250, -80.020

Thunderstorm winds downed several large trees.

Flash Flood, Washington

When
June 27, 1:00 PM EST to 2:00 PM EST
Where
Washington County, North Portion
Property damage
$100,000
Reported by
LAW ENFORCEMENT
Coordinates
40.189, -80.248 (the zone’s center; the record gives no point)

Torrential thunderstorm rains flooded roads and basements across northern portions of the county. Areas most affected include Canonsburg and Finleyville.

Flash Flood, Allegheny

When
June 27, 1:10 PM EST to 2:00 PM EST
Where
Allegheny County, Carnegie
Reported by
LAW ENFORCEMENT
Coordinates
40.469, -79.981 (the zone’s center; the record gives no point)

Thunderstorm rains forced Cambells Run Creek out of its banks.

Flash Flood, Allegheny

When
June 27, 1:20 PM EST to 2:00 PM EST
Where
Allegheny County, 2 mi NE of Imperial
Reported by
LAW ENFORCEMENT
Coordinates
40.469, -79.981 (the zone’s center; the record gives no point)

Thunderstorm rains caused minor flooding on McClaren Run Road.

Flash Flood, Allegheny

When
June 27, 1:30 PM EST to 2:00 PM EST
Where
Allegheny County, Mt Lebanon
Reported by
LAW ENFORCEMENT
Coordinates
40.469, -79.981 (the zone’s center; the record gives no point)

Thunderstorm rains caused minor flooding on McNeilly Road.

Thunderstorm Wind, Beaver

When
June 27, 7:15 PM EST
Where
Beaver County, 1 mi SE of Shippingport
Property damage
$2,000
Reported by
LAW ENFORCEMENT
Coordinates
40.620, -80.380

Thunderstorm winds downed two trees.

Thunderstorm Wind, Greene

When
June 27, 7:20 PM EST
Where
Greene County, Crabapple
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.920, -80.480

Thunderstorm winds blew the windows out of a mobile home.

Thunderstorm Wind, Greene

When
June 27, 7:35 PM EST
Where
Greene County, Graysville
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
39.930, -80.400

Thunderstorm winds downed several trees.

Thunderstorm Wind, Greene

When
June 27, 7:45 PM EST to 8:00 PM EST
Where
Greene County, Countywide
Property damage
$15,000
Reported by
LAW ENFORCEMENT
Coordinates
39.870, -80.220

Thunderstorm winds downed numerous trees and powerlines throughout the county.

Flash Flood, Greene

When
June 27, 8:00 PM EST to June 28, 5:00 AM EST
Where
Greene County, 1 mi S of Waynesburg
Reported by
LAW ENFORCEMENT
Coordinates
39.854, -80.223 (the zone’s center; the record gives no point)

Thunderstorm rains produced flooding on SR 218.

Flash Flood, Greene

When
June 27, 10:15 PM EST
Where
Greene County, Nineveh
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.854, -80.223 (the zone’s center; the record gives no point)

Basement flooding was reported.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
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 1998Every state in 1998This day in weather historyWarnings in Pennsylvania, June 1998

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: 5668707, 5668708, 5668709, 5668710, 5668711, 5668712, 5668713, 5668714, 5668715, 5668716, 5668717, 5668718, 5668784.