Hurricane Erin to bring some impacts to the Coast and especially the Outer Banks

Major Hurricane Erin Update: There will be some impacts likely for the North Carolina Coast, mainly beaches, this week. I am providing an update regarding the current forecast. As 5PM Major Hurricane Erin was 160 East of Grand Turk Island in the Turks and Caicos, according to the National Hurricane Center. It has winds of 125MPH and a pressure of 946MB, so it is a Category 3 Hurricane. Why did it weaken? Well, it underwent an eyewall replacement cycle, which allows for thunderstorms to break down temporarily and around the eye. The eyewall is the strongest part of the storm, and thunderstorms wrap around the eye. These thunderstorms are now redeveloping and will be stronger, making the system wider. It'll strengthen back to near Cat 4/5 strength over the next 12-36 hours.

The storm will gradually turn northward over the coming day and escape out to sea through the break in the ridge using Scenioro 1, which I've been talking about. However, the system will be quite large and strong as it passes by North Carolina, so some coastal impacts are still expected. I'll break down the impacts for the entire coast below. Direct landfall is still not expected. Thank goodness.

📌 Image 2 (Outer Banks/Crystal Coast Impacts)

COASTAL FLOODING(Storm Surge): The greatest coastal impacts will be along the Outer Banks. A Coastal Flood Watch has been issued for Carteret, Coastal Onslow, Coastal Hyde, and Coastal Dare County. It starts on Tuesday and lasts through Thursday night. Looking at the latest data, the most concerning time for Coastal Flooding will be Tuesday into Thursday night during high tides and with the greatest risk along the Outer Banks, especially Hatteras and Ocracoke Islands. East and South Facing Beaches will be the most concerned. If you're on Ocracoke and Hatteras Island and need to leave, I would leave tonight or Monday because travel along Highway 12 will be quite hard Tuesday, Wednesday, and Thursday, especially in the prone areas of Ocracoke, Hatteras, Buxton, Avon, Rodanthe, Waves, and Oregon Inlet. Basically, Oregon Inlet south has the greatest risk in my opinion. This is the expected to be a prolonged event starting Tuesday-Friday morning. Ferries will likely be impacted on the Outer Banks.

The National Weather Service in Morehead City says for Outer Banks Dare and Hyde Counties."Extreme beach and coastal damage is likely along the oceanside, resulting in a significant threat to life and property. Large dangerous waves will likely inundate and destroy protective dune structures. Severe flooding will likely extend inland from the waterfront causing flooding of many homes and businesses with some structural damage possible. Numerous roads will likely be impassable under several feet of water and vehicles will likely be submerged. Actions will need to be taken to protect life and property. Very dangerous swimming and surfing conditions expected, as well as the wave action resulting in significant beach erosion.

This is expected to be a prolonged duration event, with the potential for portions of NC-12 and secondary roads along the Outer Banks, in particular on Hatteras and Ocracoke Islands, to be impassable and/or inaccessible for several days due to significant wave run up. Minor soundside flooding will also be possible if stronger winds develop over the Pamlico Sound."

📌Crystal Coast: Coastal Flooding during high tides is possible from North Topsail Beach to Atlantic Beach, particularly in areas most vulnerable to Coastal/Surge Flooding, such as a stronger-than-normal King Tide. Oceanside impacts the main.

📌High Surf of 8-15FT likely Tuesday into Thursday night with the greatest surf on East and Southeast facing beaches.

📌Some Gusty winds are possible, especially along the Outer Banks, Tuesday night into Thursday night (subject to track). Some track shifts west could bring more wind. I will be watching over the next 24-48 hours, but I still don't think the winds will be anything the Outer Banks can't handle.

Image 3 (Southern Coast Impacts)

Minor Coastal Flooding is possible during High tides from Sunset Beach, Ocean Isle Beach, Holden Beach, Oak Island, Bald Head, Kure Beach, WB, and Surf City. The greatest risk will once again be South/East-facing beaches. I don't expect too many concerns from coastal flooding along the Southern Beaches, to be honest. However, tides are higher than normal anyway due to the upcoming new moon, so can't rule it out.

📌High Surf of 8-15FT likely Tuesday into Thursday night.

📌High Rip Currents LIKELY ALL WEEK

📌 Bad Boating conditions, some gusty winds possible on Wednesday, but nothing too strong at this point.

😎 The Bottom Line: Erin will not directly make landfall on North Carolina; folks away from the beaches have absolutely nothing to worry about. Erin remains a powerful Category 3 hurricane with winds of 125 mph after undergoing an eyewall replacement cycle, and it is expected to regain near Category 4/5 strength in the next 12–36 hours. The storm will turn north and pass offshore, but its large size means North Carolina’s coast, especially the Outer Banks, will face prolonged coastal flooding, extreme beach erosion, and dangerous surf from Tuesday through Thursday night. Portions of NC-12, particularly on Hatteras and Ocracoke Islands, may become impassable for several days, with ferries also impacted. While direct landfall is not expected, residents and visitors along the coast should prepare for high surf, rip currents, and coastal flooding, with the most significant impacts focused on the Outer Banks. As always, weather forecasting is a science, so if anything changes, I'll be updating. I hope this helps folks out, as there are still some questionable posts floating around.

-Ethan