Low pressure was located in southeastern Canada during the early morning hours of August 8th. A cold front associated with this area of low pressure was moving across the Great Lakes and Ohio Valley regions during the morning. Well out ahead of this cold front was a surface trough which moved through the Mid Atlantic region during the very early morning hours on August 8th. A very warm and humid air mass was in place, and with some upper-level energy, a round of showers and thunderstorms moved through parts of eastern Pennsylvania and northern New Jersey. Some of the thunderstorms turned locally severe between 2:20 AM and 5:40 AM EDT with damaging winds. Locally heavy rainfall also occurred, which resulted in some localized urban flooding.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 08-AUG-07 02:45:00 to 08-AUG-07 03:20:00 (EST-5)
Location: LUDLOW ASBURY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm caused wind damage across Hunterdon County from Bloomsbury Borough east through Readington Township. A National Weather Service storm survey concluded that the worst wind damage occurred in Bethlehem Township where wind gusts were estimated to reach 70 mph. The hardest hit areas in the township were near the intersection of Rounsville and White Roads as well as Trush Lane. Numerous trees were uprooted and snapped. Dozens of trees were uprooted on one property. Minor damage occurred to a couple of homes as trees fell on them. A fallen tree also damaged a swimming pool and vehicle. In Tewksbury Township, County Routes 517 and 523 were closed. The Oldwick Section of the township completely lost power. About 10,000 homes and businesses lost power in the county, power was fully restored the evening of the 8th.

Thunderstorm Wind in WARREN, NEW JERSEY
From 08-AUG-07 02:00:00 to 08-AUG-07 02:15:00 (EST-5)
Location: PHILLIPSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm produced a damaging wind gust in Phillipsburg at 3:00 AM EDT on the 8th, which knocked trees down. Wind damage continued farther east across the southern part of Warren County in Greenwich Township, Pohatcong Township and Alpha Borough. A second area of wind damage occurred in east central Warren County in Washington and Mansfield Townships. Downed trees damaged a roadway in Washington Township and a downed tree forced the closure of New Jersey State Route 57 in Mansfield Township.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 08-AUG-07 03:25:00 to 08-AUG-07 03:40:00 (EST-5)
Location: NORTH BRANCH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm blasted across a portion of Branchburg Township at 4:25 AM EDT on the 8th. A National Weather Service storm survey indicated that damaging straight line winds of up to 70 mph occurred. These damaging winds downed power poles and numerous trees. Some of the tree tops were completely sheared off. On one property in the North Branch area of the township, 100 to 200 year old trees were split apart. Quarry Lane in the Martinsville section of the township was closed to traffic because of downed trees. On another property, a gazebo was just tossed by the damaging winds. Wind damage cut across the central part of the county into Bridgewater and Franklin Townships where several more trees and power lines were knocked down.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 08-AUG-07 04:40:00 to 08-AUG-07 04:40:00 (EST-5)
Location: SOUTH PLAINFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

The severe thunderstorm downed a few wire and trees on the north side of South Plainfield. The Franklin Avenue section bordering Plainfield Township (Union County) was hit the hardest. About 8,400 homes and businesses lost power in Middlesex and Essex Counties.