A low pressure system that formed off the Carolina coast on the 6th meandered slowly northeast into the 10th before it started to retrograde toward the Delaware and New Jersey coasts the night of the 10th. A weak onshore flow persisted for much of the week, but intensified as the low pressure system moved into Delaware Bay and made landfall in Delaware during the morning of the 11th. The low pressure system slowly weakened as it moved into the Delaware River Valley later on the 11th into the 12th.
The pressure gradient (difference) caused by a high pressure system over eastern New England and the Canadian Maritimes and the low pressure produced the strongest northeast winds, the highest tides and roughest surf during the first half of the day on the 11th. Because this event occurred during the neap lunar tide cycle, tidal flooding was just minor as beach erosion due to the large wave action had the highest impact along coastal areas. Peak wind gusts reached between 40 and 60 mph across eastern parts of the state with the highest gusts in Atlantic County. The combination of the persistent winds and heavy rain caused several trees, tree limbs and wires to be knocked down across the region. Thunderstorms which accompanied the low pressure system inland exacerbated the strong winds.
In Atlantic County, the tourist attraction Lucy the Elephant in Margate was damaged by a flying tent. Downed trees temporarily suspended service on the PATCO High Speed Line into Philadelphia and the New Jersey Transit Shore Line into New York City. In Monmouth County, in Long Branch, a moving vehicle was damaged by a fallen tree. The driver and occupant were not hurt. Also in Long Branch, a home was damaged slightly by a fallen tree. In Ocean County, numerous municipalities reported downed trees and wires. Downed trees damaged homes in Toms River, Berkeley and Jackson. A couple of vehicles were damaged by downed trees in Lakewood and Berkeley. Point Pleasant emergency personnel responded to about 30 weather related calls, most about downed tree limbs and trees. One deck was damaged by a fallen tree. Atlantic City Electric reported about 15,000 homes and businesses lost power in the southern third of New Jersey. Power was fully restored by the afternoon of the 12th.
The largest effect along the shore was the wave action and the ensuing erosion from the pounding surf. In Monmouth County, vertical cuts averaged 2 to 4 feet, but reached as high as 6 feet in Belmar, Spring Lake and Manasquan. In Ocean County, vertical cuts reached 3 to 6 feet in the northern half of the county and 2 to 3 feet in the southern half of the county. In Mantoloking, damage to stairs and sand fencing occurred. In Atlantic County, vertical cuts averaged 1 to 2 feet, but reached up to 6 feet in Ventnor from Richards to Newport Avenue. In Cape May County, most vertical cuts averaged 1 to 2 feet, but reached as high as 4 feet in Ocean City, 6 feet in Sea Isle City and 7 feet in Avalon. In Ocean City, geotubes were exposed at Surf Avenue.  In Sea Isle City, vertical cuts reached 6 feet at the 88th Street groin. The Townsend Inlet Bridge was closed between Sea Isle City and Avalon. In Avalon itself, the vertical cuts reached 7 feet between 10th and 24th Streets. In Stone Harbor, dune fencing was lost and in North Wildwood, a remnant dune in the inlet disappeared.
Peak wind gusts included 61 mph in Atlantic City (Atlantic County), 57 mph in Seaside Heights (Ocean County), 56 mph in Harvey Cedars (Ocean County), 55 mph in Tuckerton (Ocean County), 51 mph in Cape May (Cape May County), 50 mph in Sandy Hook (Monmouth County) and 48 mph in Ocean City (Cape May County). Minor tidal flooding occurred with the early morning high tide at Cape May on the 11th. The high tide reached 6.96 feet above mean lower low water. Minor tidal flooding starts at 6.7 feet above mean lower low water.

High Surf in EASTERN CAPE MAY, NEW JERSEY
From 10-SEP-09 06:00:00 to 11-SEP-09 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

High Surf in EASTERN MONMOUTH, NEW JERSEY
From 10-SEP-09 06:00:00 to 11-SEP-09 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

High Surf in EASTERN OCEAN, NEW JERSEY
From 10-SEP-09 06:00:00 to 11-SEP-09 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Strong Wind in CUMBERLAND, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong Wind in SALEM, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong Wind in EASTERN CAPE MAY, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 44.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Strong Wind in WESTERN CAPE MAY, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong Wind in SOUTHEASTERN BURLINGTON, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong Wind in WESTERN ATLANTIC, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 44.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in WESTERN OCEAN, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 48.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong Wind in EASTERN OCEAN, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 49.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Strong Wind in EASTERN MONMOUTH, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 43.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Strong Wind in WESTERN MONMOUTH, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in EASTERN ATLANTIC, NEW JERSEY
From 11-SEP-09 03:00:00 to 11-SEP-09 07:00:00 (EST-5)
Magnitude: 53.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Strong Wind in CAMDEN, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong Wind in GLOUCESTER, NEW JERSEY
From 10-SEP-09 23:00:00 to 11-SEP-09 11:00:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

High Surf in EASTERN ATLANTIC, NEW JERSEY
From 10-SEP-09 06:00:00 to 11-SEP-09 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official