Arthur made landfall at 03:15 UTC over North Carolina's Shackleford Banks, positioned between Cape Lookout and Beaufort, and intensified slightly further, with a minimum atmospheric pressure of 973 mbar (hPa; 28.70 inHg).
The storm then trekked swiftly northeast, weakening as it passed by Cape Cod and Nantucket, before transitioning into an extratropical cyclone and coming ashore at Weymouth, Nova Scotia, on July 5.
Several hundred government personnel were deployed to assist in evacuation and preparation efforts, along with heavy equipment capable of removing sand and debris.
In New England, Arthur brought flash flooding and caused additional power outages, resulting in widespread road closures and suspension of ferry service.
A communication breakdown between NSP and the public exacerbated problems, and Nova Scotia Premier Stephen McNeil condemned the company's response as "inexcusable."
[1] That day, National Hurricane Center (NHC) began monitoring the possibility of tropical cyclogenesis off the Southeast United States over the following week as the system was expected to encounter favorable environmental conditions.
[5] During the latter half of June 30, a United States Air Force weather reconnaissance mission into the system confirmed the presence of a well-organized circulation; however, displacement of showers and thunderstorms from its center delayed its classification.
[6] Subsequent organization of convection into a banding feature along the system's southern flank, as depicted by radar imagery, prompted the NHC to designate the low as Tropical Depression One at 00:00 UTC on July 1.
[7] Situated 70 mi (110 km) east-southeast of Fort Pierce, Florida, the newly christened depression moved slowly westward within an area of weak steering currents.
Around 15:00 UTC winds of 38 mph (61 km/h) were measured at Settlement Point on Grand Bahama, prompting the NHC to upgrade the depression to a tropical storm and assign it the name Arthur.
[8] Though environmental conditions surrounding the cyclone favored development, moderate wind shear and intrusions of dry air into the circulation prolonged organization.
[9] The effects of the shear showed clearly on WSR-88D radar imagery from Melbourne, Florida which depicted a mid-level eye feature displaced 30 to 35 mi (48 to 56 km) from the low-level center.
[12] Early on July 3, data from hurricane hunters flying in the storm indicated that Arthur attained hurricane-status about 190 mi (310 km) south-southwest of Cape Fear, North Carolina.
[13][14] At this time, the hurricane began turning slightly to the north-northeast as it approached a weakness in the subtropical ridge ahead of a deep-layer trough over the Eastern United States.
[23] Accelerating ahead of the trough over the East Coast, Arthur's eye dissipated early on July 5;[24] the storm passed within 75 mi (121 km) of Chatham, Massachusetts around 03:00 UTC.
[30] Multiple tropical cyclone warnings and watches were posted along the East Coast of the United States in advance of Arthur's impacts in Florida, the Carolinas, New England, and Atlantic Canada.
Additionally, a tropical storm warning was issued from the Santee River to Surf City, while another one became in effect from Duck to Cape Charles Light in Virginia, including the mouth of Chesapeake Bay.
[34] In preparation for the possibility that Arthur's storm surge would make North Carolina Highway 12 and Hatteras Island inaccessible, local officials deployed heavy equipment capable of removing sand and other debris.
Province-managed parks in Nova Scotia, including beaches and camping grounds, were shut down prior to Arthur's arrival, and several airlines waived transfer fees.
[44] Officials in Moncton stated that city personnel would be prepared to respond to potential issues caused by Arthur, such as flooding or fallen trees, while the Canadian Red Cross readied volunteers in case of the need for emergency assistance.
[32] As a result, Duke Energy deployed over 500 personnel to restore electrical service,[58] while Tideland EMC handled more than 2,000 outages in Pamlico, Hyde and Craven counties.
[32] Strong winds toppled trees and power poles in Hyde County and Ocracoke Island,[59] and flooding occurred just south of downtown Wilmington, North Carolina.
[60] Meanwhile, at Wrightsville Beach, the hurricane tore off shingles and partially defoliated palm trees,[61] and in Manteo, 6 to 8 inches (150 to 200 mm) of water inundated several businesses.
[63] North Carolina Highway 12, the only road linking Hatteras Island to the mainland, remained closed after Arthur's passage, covered under water and sand.
[66] Few flight cancellations were made necessary by Arthur's approach along the East Coast, as the storm's impacts were primarily offshore, and damage was limited to strewn debris and inundated roads.
In Onslow, Nova Scotia, firefighters rescued a man trapped under a tree limb, while a sailboat capsized at Charlottetown harbor and another was washed out to sea.
[76] The storm caused flight delays and cancellations at Halifax Stanfield International Airport, while LaHave and Tancook Island ferries were shut down; in addition, access to the A. Murray MacKay Bridge was restricted to smaller vehicles.
The delay in restoration prompted numerous complaints from residents and Nova Scotia Premier Stephen McNeil condemned NSP's response as "inexcusable."
Shaved ice was later distributed from the Grant-Harvey Centre in the city while several waste disposal sites were opened for residents to get rid of spoiled food from power outages.
[92] Gaëtan Thomas, president and chief executive officer of NB Power, likened the effects of Arthur in the region to Hurricane Katrina along the United States Gulf Coast in August 2005.