A slow moving warm front pushed northward across northeast Pennsylvania late in the afternoon on April 25th. A warm and relatively moist air mass covered the region, with showers and storms developing, especially in the unstable air south of the frontal boundary, where breaks in the cloud cover allowed temperatures to rise to near 70 degrees. Severe weather developed, and in addition to reports of severe wind damage and hail, areas of heavy rain caused significant flash flooding in several locations of northeast Pennsylvania.

Flash Flood in LUZERNE, PENNSYLVANIA
From 26-APR-11 23:17:00 to 27-APR-11 05:00:00 (EST-5)
Location: EDWARDSVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Flash flooding occurred along Route 6 in Plymouth Township, with scattered areas of road flooding elsewhere across Luzerne county.

Flash Flood in BRADFORD, PENNSYLVANIA
From 25-APR-11 21:50:00 to 26-APR-11 01:00:00 (EST-5)
Location: NORTH TOWANDA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding occurred along several roads in Wysox.

Hail in SUSQUEHANNA, PENNSYLVANIA
From 26-APR-11 20:45:00 to 26-APR-11 20:45:00 (EST-5)
Location: ELK LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in WYOMING, PENNSYLVANIA
From 26-APR-11 21:05:00 to 27-APR-11 03:00:00 (EST-5)
Location: SKINNERS EDDY
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A creek in Laceyville flooded, with several homes threatened. Several other roads were also flooded and washed out.

Hail in LACKAWANNA, PENNSYLVANIA
From 26-APR-11 21:25:00 to 26-APR-11 21:25:00 (EST-5)
Location: OLYPHANT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WAYNE, PENNSYLVANIA
From 26-APR-11 21:45:00 to 26-APR-11 21:45:00 (EST-5)
Location: EQUINUNK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SUSQUEHANNA, PENNSYLVANIA
From 26-APR-11 19:53:00 to 26-APR-11 19:53:00 (EST-5)
Location: DIMOCK
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were downed. Also, a 30 foot trailer was over-turned and a pole barn was destroyed.

Hail in LUZERNE, PENNSYLVANIA
From 26-APR-11 20:56:00 to 26-APR-11 20:56:00 (EST-5)
Location: FORTY FT
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in BRADFORD, PENNSYLVANIA
From 26-APR-11 20:00:00 to 27-APR-11 05:00:00 (EST-5)
Location: FASSETT
Flood cause: Heavy Rain
Property damage: 3.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Bradford County experienced significant flash flooding on the overnight period of April 26th into April 27th.  The bulk of the damage was roadway related with most townships in the county reporting at least some flooded roads. Some bridges suffered damage, as well. The township with the greatest damage was Troy, with over $1 million in damages. One home in North Towanda had significant structural damage with a wall collapse due to the flash flooding.  Other homes only reported basement flooding or other minor damages.

Hail in BRADFORD, PENNSYLVANIA
From 25-APR-11 19:50:00 to 25-APR-11 19:50:00 (EST-5)
Location: COLUMBIA XRDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BRADFORD, PENNSYLVANIA
From 25-APR-11 20:30:00 to 25-APR-11 20:30:00 (EST-5)
Location: ATHENS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SUSQUEHANNA, PENNSYLVANIA
From 25-APR-11 20:39:00 to 25-APR-11 20:39:00 (EST-5)
Location: NEW MILFORD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SUSQUEHANNA, PENNSYLVANIA
From 26-APR-11 20:02:00 to 26-APR-11 20:02:00 (EST-5)
Location: MONTROSE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SUSQUEHANNA, PENNSYLVANIA
From 26-APR-11 20:05:00 to 26-APR-11 20:05:00 (EST-5)
Location: HALLSTEAD
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was blown down on Route 21 south onto a power pole.

Hail in SUSQUEHANNA, PENNSYLVANIA
From 26-APR-11 20:11:00 to 26-APR-11 20:11:00 (EST-5)
Location: MONTROSE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SUSQUEHANNA, PENNSYLVANIA
From 25-APR-11 20:03:00 to 25-APR-11 20:03:00 (EST-5)
Location: ST JOSEPH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SUSQUEHANNA, PENNSYLVANIA
From 25-APR-11 20:15:00 to 25-APR-11 20:15:00 (EST-5)
Location: MONTROSE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BRADFORD, PENNSYLVANIA
From 25-APR-11 20:30:00 to 25-APR-11 20:30:00 (EST-5)
Location: ATHENS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in BRADFORD, PENNSYLVANIA
From 25-APR-11 21:50:00 to 26-APR-11 01:00:00 (EST-5)
Location: WEST BURLINGTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding occurred along Route 6 in West Burlington.

Thunderstorm Wind in BRADFORD, PENNSYLVANIA
From 26-APR-11 19:30:00 to 26-APR-11 19:30:00 (EST-5)
Location: HOLLENBACK
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees were uprooted, a portable toilet was thrown 1/4 mile and a light pole was damaged by winds at Wyalusing Valley Motor Sports Park.

Thunderstorm Wind in BRADFORD, PENNSYLVANIA
From 26-APR-11 17:50:00 to 26-APR-11 17:50:00 (EST-5)
Location: TROY
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Several trees were blown down in the Troy area.  A tree house blew down and a trampoline was tossed.  Hail of unknown size also fell.

Thunderstorm Wind in BRADFORD, PENNSYLVANIA
From 26-APR-11 19:45:00 to 26-APR-11 19:45:00 (EST-5)
Location: CAMPTOWN
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Multiple trees were blown down, blocking a roadway at the intersection of Routes 409 and 706.

Thunderstorm Wind in LUZERNE, PENNSYLVANIA
From 26-APR-11 20:56:00 to 26-APR-11 20:56:00 (EST-5)
Location: IDETOWN
Magnitude: 61.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and power lines were blown down, with some falling on homes. The Back Mountain area was particularly hard hit.

Flash Flood in BRADFORD, PENNSYLVANIA
From 25-APR-11 21:50:00 to 26-APR-11 01:00:00 (EST-5)
Location: CORYLAND
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding occurred along several roads in Troy.