A significant severe weather and flash flood outbreak developed across northeast Pennsylvania as a storm system moved east from the Great Lakes.  Thunderstorms with damaging winds and very heavy rain developed and moved across the area during the overnight hours on the 28th. One supercell thunderstorm produced a tornado in Susquehanna county. Significant flash flooding also occurred across portions of the area.

Thunderstorm Wind in LACKAWANNA, PENNSYLVANIA
From 28-APR-11 07:45:00 to 28-APR-11 07:45:00 (EST-5)
Location: DALTON
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A barn was destroyed.

Thunderstorm Wind in LACKAWANNA, PENNSYLVANIA
From 28-APR-11 07:50:00 to 28-APR-11 07:50:00 (EST-5)
Location: EAST BENTON
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down near exit 201 off I-81 and State Route 438.

Thunderstorm Wind in LACKAWANNA, PENNSYLVANIA
From 28-APR-11 07:57:00 to 28-APR-11 07:57:00 (EST-5)
Location: DALTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blown down.

Thunderstorm Wind in WAYNE, PENNSYLVANIA
From 28-APR-11 05:05:00 to 28-APR-11 05:05:00 (EST-5)
Location: EQUINUNK
Magnitude: 60.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines were blown down. School was closed due to blocked roadways.

Thunderstorm Wind in LUZERNE, PENNSYLVANIA
From 28-APR-11 03:55:00 to 28-APR-11 03:55:00 (EST-5)
Location: LEHMAN
Magnitude: 83.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The damage was concentrated near market street to the west of the Huntsville Reservoir. Numerous White Pine and Eastern Hemlock trees were snapped with a few uprooted. The width of the damage swath was about 500 yards with the damage path length about 1 mile.

Thunderstorm Wind in WYOMING, PENNSYLVANIA
From 28-APR-11 04:20:00 to 28-APR-11 04:20:00 (EST-5)
Location: FALLS
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A micro-burst hit along the Wyoming/Lackawanna County line in Falls and Newton Townships. Most of the damage was to trees which were uprooted. A garage was partially collapsed by the wind with 1 garage door completely blown in. A home sustained some damage to the roof as many shingles were blown off.

Thunderstorm Wind in LACKAWANNA, PENNSYLVANIA
From 28-APR-11 04:26:00 to 28-APR-11 04:26:00 (EST-5)
Location: EAST BENTON
Magnitude: 70.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A Pennsylvania power and light truck was blown over and trees were blown down.

Thunderstorm Wind in WAYNE, PENNSYLVANIA
From 28-APR-11 05:02:00 to 28-APR-11 05:02:00 (EST-5)
Location: BEACH LAKE
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several 75 to 80 foot trees were uprooted on Griffith Road and trees were blown down on Two Mile Road.

Thunderstorm Wind in WYOMING, PENNSYLVANIA
From 28-APR-11 07:39:00 to 28-APR-11 07:39:00 (EST-5)
Location: FALLS
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down.

Thunderstorm Wind in BRADFORD, PENNSYLVANIA
From 28-APR-11 03:30:00 to 28-APR-11 03:30:00 (EST-5)
Location: HERRICK
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A roof was blown off a mobile home.

Flash Flood in BRADFORD, PENNSYLVANIA
From 28-APR-11 03:00:00 to 28-APR-11 12:00:00 (EST-5)
Location: COLUMBIA XRDS
Flood cause: Heavy Rain
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Significant flash flooding developed, especially in the borough of Burlington.  Eight to ten inches of water was flowing through the borough, with mudslides and numerous roads closed. Route 14 in Canton was closed due to flooding. Many roads were also flooded and closed in Troy.

Thunderstorm Wind in LUZERNE, PENNSYLVANIA
From 28-APR-11 03:50:00 to 28-APR-11 03:50:00 (EST-5)
Location: LEHMAN
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A swath of hundreds of  trees was blown down in the Back Mountain area.

Tornado in SUSQUEHANNA, PENNSYLVANIA
From 28-APR-11 04:50:00 to 28-APR-11 04:55:00 (EST-5)
Location: HERRICK CENTER
Tornado F-scale: EF0
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down on Lewis Lake Road and uprooted many trees in one woodlot. The tornado then apparently lifted for a time before touching down again, damaging a mobile home. Part of the roof was torn off the mobile home and thrown about 100 yards. There were no injuries or fatalities. It is estimated that the tornado was on the ground for just a few minutes.

Flash Flood in LUZERNE, PENNSYLVANIA
From 28-APR-11 06:00:00 to 28-APR-11 12:00:00 (EST-5)
Location: NANTICOKE
Flood cause: Heavy Rain
Property damage: 280.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused flash flooding and damage, especially in the Wilkes-Barre area.  Sinkhole repairs for South Wilkes-Barre came to about $50,000.  The walls along Laurel Run Creek were damaged, with approximately 250 feet of wall collapsed.  Hollenback Golf Course suffered damage to its clubhouse roof and interior.