Bryan Norcross: Hurricane Erin's impacts on US East Coast will increase through the day

Updated astatine 9:45 a.m. ET connected Thursday, Aug. 20, 2025

Even though Hurricane Erin's apical winds are not arsenic aggravated arsenic they erstwhile were, the tempest has grown successful size, truthful its impacts volition dispersed implicit a wider area.

The ambiance up of Erin looks to beryllium reasonably conducive for intensification, truthful the National Hurricane Center is forecasting the apical winds to summation somewhat to the apical extremity of the Category 2 range. The cardinal unit is already dropping, truthful the intensification process seems to already beryllium underway. Although successful a elephantine storm, the process is dilatory due to the fact that determination is truthful overmuch aerial to get moving. 

This outer representation shows Hurricane Erin connected Aug. 20, 2025.

(FOX Weather)

Thankfully, the highest winds volition enactment retired implicit the ocean. But beardown feeder bands widen retired adjacent the periphery of the storm. The borderline of the circulation is forecast to brushwood Cape Hatteras and utmost eastbound North Carolina precocious contiguous and aboriginal tomorrow.

Tropical Storm Warnings (for sustained winds implicit 40 mph) and Storm Surge Warnings are successful effect for the coastal communities successful eastbound North Carolina. The information volition not beryllium from the wind, nevertheless – it volition beryllium from the ocean.

Large-diameter storms enactment exponentially much vigor into the water and truthful nutrient highly unsafe currents and almighty damaging waves. Erin's vigor volition scope the Southeast seashore contiguous and dilatory migrate northbound contiguous and tomorrow. Many beaches volition beryllium closed owed to the unsafe waves and currents. Pay attraction to section instructions and cheque with a lifeguard earlier going into the water supra your ankles.

This graphic shows the latest advisory for Hurricane Erin connected Aug. 20, 2025.

(FOX Weather)

On Thursday, arsenic Erin moves north, the absorption of the vigor volition beryllium from Cape Hatteras northbound to New England – including the Tidewater of Virginia, the Delmarva Peninsula, the Jersey Shore, Long Island and the New England coast. New York City has already closed the beaches to swimming successful beforehand of impacts from the storm, on with galore different communities.

Erin volition beryllium moving retired to oversea by precocious Friday, but the water volition inactive beryllium disturbed connected Saturday. It takes clip for the immense magnitude of vigor a elephantine tempest imparts to the h2o to dissipate.

Next successful the tropics

This graphic provides an overview of the tropical Atlantic Basin connected Aug. 20, 2025.

(FOX Weather)

The National Hurricane Center is giving the large, disorganized disturbance two-thirds of the mode betwixt Africa and the Caribbean a medium-high accidental of processing implicit the adjacent fewer days. The statement of the assorted machine forecasts is that the strategy volition beryllium successful the vicinity of the northeastern Caribbean islands Friday oregon Saturday.

None of the machine exemplary predictions amusement an particularly beardown system, but a fig amusement a slump oregon Tropical Storm Fernand. If this strategy does develop, it looks astir apt to hap aft it has turned northbound of the islands, but we'll person to ticker to beryllium sure.

Most of the long-range forecasts bespeak that the strategy volition crook sharply northbound and much oregon little travel Erin, though galore of the tracks are eastbound of Bermuda, acold from the U.S. That's surely not 100% due to the fact that it depends connected however beardown the strategy becomes and when, but the steering signifier looks strong.

The strategy called Invest 99L

Closer to Africa, a much organized disturbance that the National Hurricane Center tagged Invest 99L is dilatory moving crossed the tropical belt. The NHC present has likelihood successful the mean scope that this strategy volition make into a tropical slump oregon a tropical storm.

The statement of the machine forecasts is that hostile conditions volition soon make successful its path, which volition forestall it from processing if things don't travel unneurotic beauteous quickly.

The cardinal regularisation applies to some these systems: each forecasts for undeveloped oregon conscionable processing systems are taxable to ample errors and are apt to change. So don't bent your chapeau connected thing yet.

The large picture

A beardown fall-like acold beforehand volition propulsion toward the eastbound U.S. implicit the week, which volition support immoderate tropical systems good disconnected the East Coast for a while. So aft this week, we won't expect immoderate threats from storms moving southbound to northbound for a week oregon more.

Even though it feels similar we've been astatine this for a while, successful reality, we're conscionable opening the clip of twelvemonth that we ticker for systems processing from African disturbances. We've got a agelong mode to go.