Evacuations Ordered for Hatteras Island as Powerful Offshore Storm’s Expanding Wind Field Threatens to Cut Off Coastal Highway and Erode Barrier Islands
As Hurricane Erin churns far offshore in the Atlantic, North Carolina’s Outer Banks are bracing for a prolonged and significant onslaught of coastal flooding and erosion. Despite the storm’s eye passing at least 150 miles away, its immense and growing size is pushing a dangerous storm surge and towering waves onto the barrier islands, prompting a State of Emergency and mandatory evacuations.
Officials in Dare County have declared a State of Emergency, and a mandatory evacuation has been issued for Hatteras Island.
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The storm’s core may be distant, but its expansive wind field—which now reaches up to 230 miles from the center—is the primary threat. “People on the coast should not just focus on the eye track of a hurricane,” warned AccuWeather Lead Hurricane Expert Alex DaSilva. The ongoing dangers are tied to a relentless surge, powerful waves, and overwash from the sea.
The hurricane’s size has been expanding due to a natural phenomenon known as an eyewall replacement cycle. During this process, the storm’s wind field expands, and while its core intensity may temporarily fluctuate, the overall footprint of damaging winds and waves increases. This is why the Outer Banks and beaches as far north as New England will feel significant impacts.
Forecasters predict a storm surge of 1 to 3 feet in most areas, but parts of eastern North Carolina could see a dangerous surge of 3 to 6 feet. When combined with wave action, ocean water levels could rise by 10 to 15 feet, with localized waves reaching up to 20 feet. This surge is expected to cause severe beach erosion and lead to significant flooding, particularly on the low-lying Outer Banks. Officials have already performed dozens of water rescues at Wrightsville Beach, a sign of the treacherous conditions to come.
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The worst of the conditions are expected from late Tuesday through Thursday. Portions of North Carolina Highway 12, the only major roadway connecting the Outer Banks to the mainland, are likely to experience significant overwash flooding and could be damaged, potentially cutting off island communities. Wind gusts of 40-60 mph are also expected, which could lead to sporadic power outages.
The hurricane will continue to generate dangerous rip currents and high surf along much of the U.S. East Coast, leading many beaches to close. As Erin accelerates northeastward later in the week, conditions will begin to improve for the Outer Banks, but residents and officials will face the aftermath of the storm’s destructive force.
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