The storm has weakened but remains a threat, with forecasters warning of broader East Coast impacts after two counties declared states of emergency over the weekend.

The National Hurricane Center (NHC) reported that Hurricane Erin has weakened from its peak but remains a major threat. The storm is expected to bring heavy rainfall and flooding in the Caribbean, pose risks along the U.S. East Coast, and has already triggered emergency declarations in parts of North Carolina.Hurricane Erin, a Category 5 storm on Saturday, August 16, 2025, has weakened to Category 3 but remains powerful in the Atlantic. The NHC reported on August 17 that Erin carried sustained winds of 125 mph (205 km/h) while moving West to Northwest at 13 mph (20 km/h).The storm is forecast to turn northward early this week while increasing in size and strength, and will remain a major hurricane through midweek.Forecasters stressed that Erin’s hazards extend far beyond its center. Hurricane-force winds stretch outward 50 miles (85 km), while tropical-storm-force winds extend more than 200 miles (335 km). The NHC warned that the storm is likely to remain “large and dangerous.”Heavy Rainfall and Tropical Storm Warnings
Erin’s outer bands are already delivering heavy rainfall. Puerto Rico is expected to receive an additional two to four inches through Monday. Turks and Caicos and the Eastern Bahamas, including San Salvador Island, could see up to six inches through Tuesday.The NHC cautioned that this rainfall could trigger flash flooding in urban areas and landslides or mudslides in mountainous terrain. Tropical Storm Warnings are in effect for the Turks and Caicos Islands and the Southeast Bahamas, where storm conditions are expected within 24 hours.In addition to rainfall, Erin’s large wind field is generating swells across much of the region. The NHC noted that rough seas are affecting the Virgin Islands, Puerto Rico, Hispaniola, and the Turks and Caicos, and will spread to the Bahamas, Bermuda, the East Coast of the United States, and Atlantic Canada in the coming days.These swells are expected to produce dangerous surf and rip currents, making swimming and surfing hazardous. Minor coastal flooding is also possible in areas of onshore winds.

Potential Impacts Across the East Coast
While Erin is not expected to make landfall in the United States, its expanding size means coastal impacts will stretch for hundreds of miles. North Carolina and Virginia would reportedly face a moderate risk of rain and wind, while Florida and much of the East Coast face lower risks.

According to Newsweek, AccuWeather lead hurricane expert Alex DaSilva said, “At this time, impacts are expected to include dangerous surf, beach erosion and coastal flooding. However, conditions may worsen along the U.S. Atlantic coast, if Erin’s track shifts farther west.”He added that coastal areas such as the Outer Banks in North Carolina, Long Island in New York, and Cape Cod in Massachusetts face the highest risk of direct impacts.DaSilva explained that Erin has not yet begun its Northward turn, and if the storm continues west before curving, the likelihood of impacts reaching the East Coast would increase.
As reported by CBS News, the Tri-State area — New York, New Jersey, and Connecticut — could feel Erin’s effects from Tuesday through Thursday, particularly along the Jersey Shore and Long Island’s South Shore.While some outer bands may bring isolated showers, inland communities such as New York’s Hudson Valley and central New Jersey are expected to see only breezy conditions and cloud cover.North Carolina Counties Declare States of Emergency
Local governments in coastal North Carolina have taken emergency steps ahead of the storm. After the NHC’s August 17 update, Dare County Emergency Management declared a state of emergency for all areas of the county.
The order included a mandatory evacuation for Hatteras Island, with visitors required to leave at 10 a.m. Monday, August 18, and residents at 8 a.m. Tuesday, August 19.County officials said the evacuations are necessary despite Erin staying offshore because its expanding size is expected to deliver severe coastal impacts.
“While Hurricane Erin is expected to stay well off our coast, the system will continue to increase in size and is forecast to bring life-threatening impacts to the Dare County coastline,” the county said.

A Coastal Flood Watch is in effect, with forecasters warning that ocean overwash could make sections of N.C. Highway 12 impassable for days. Breaking waves of 15 to 20 feet are expected, capable of destroying dunes, eroding beaches, and flooding roads.
Meanwhile, the Hyde County Board of Commissioners issued a similar declaration for Ocracoke Island. The state of emergency included a mandatory evacuation for visitors effective immediately and for residents beginning Tuesday morning.The system will continue to increase in size and is forecast to bring life-threatening impacts to the Ocracoke coastline and render Highway 12 impassable,” the board said.

Officials warned that towering surf exceeding 20 feet could destroy protective dunes and that emergency medical services may not be available once the island is cut off. Residents with medical needs were urged to evacuate while routes remain open.As Erin threatens offshore, Tropical Storm Chantal back in July served as a reminder of how quickly conditions can worsen along the Carolina coast.
Chantal made landfall early Sunday as a tropical storm between Charleston, South Carolina, and Wilmington, North Carolina. It was downgraded to a tropical depression shortly afterward, according to NHC and the Weather Prediction Center (WPC).The system brought dangerous conditions to parts of the U.S. Southeast as it moved inland. As of 5 p.m. EDT, Chantal was located about 65 miles south-southwest of Raleigh, North Carolina, with sustained winds of 30 mph. It was moving north-northeast at 10 mph and was expected to accelerate toward the northeast through Monday.
A tropical storm warning was in effect for coastal areas from the South Santee River, South Carolina, to Surf City, North Carolina, where conditions were unstable. Earlier in the day, wind gusts reached 50 mph, with sustained winds of 45 mph reported at Apache Pier in South Carolina
Inland, flash flood watches were issued for central North Carolina and south-central Virginia, where 2 to 4 inches of rain were expected, with isolated areas receiving up to 6 inches. These amounts had the potential to cause localized flooding, particularly in urban and low-lying areas.
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