Hurricane Erin Intermediate Advisory Number 40A - NWS National Hurricane Center Miami FL       AL052025 - 800 AM EDT Thu Aug 21 2025

...COASTAL FLOODING CONTINUES ALONG PORTIONS OF THE NORTH CAROLINA

AND MID-ATLANTIC COASTS......BEACHGOERS ARE CAUTIONED AGAINST SWIMMING AT MOST U.S. EAST COAST BEACHES DUE TO LIFE-THREATENING SURF AND RIP CURRENTS...

 

SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION

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LOCATION...34.8N 71.8W

ABOUT 210 MI...340 KM E OF CAPE HATTERAS NORTH CAROLINA

ABOUT 440 MI...710 KM WNW OF BERMUDA

MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H

PRESENT MOVEMENT...NNE OR 25 DEGREES AT 17 MPH...28 KM/H

MINIMUM CENTRAL PRESSURE...945 MB...27.91 INCHES

WATCHES AND WARNINGS

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CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for...

* Cape Lookout to Duck, North Carolina

A Tropical Storm Warning is in effect for...

* Beaufort Inlet, North Carolina to Chincoteague, Virginia,

including Pamlico and Albemarle Sounds

A Tropical Storm Watch is in effect for...

* Bermuda

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1. Near the Leeward Islands in the Tropical Atlantic:  An area of showers and thunderstorms associated with a tropical wave located a few hundred miles east of the Leeward Islands has changed little over the past several hours.  Environmental conditions appear conducive for further development of this system, and a tropical depression is likely to form this weekend while it moves near or to the north of the northern Leeward Islands.

* Formation chance through 48 hours...medium..40 percent.

* Formation chance through 7 days...high...70 percent.

 

2. Eastern Tropical Atlantic (AL99):  Showers and thunderstorms associated with a tropical wave located

several hundred miles west-southwest of the Cabo Verde Islands show some signs of organization.  Environmental conditions appear marginally favorable for additional development over the next day or

so while the system moves west-southwestward at around 15 mph, and a short-lived tropical depression could form.  In a couple of days, environmental conditions are expected to become unfavorable for further development.

* Formation chance through 48 hours...medium...40 percent.

* Formation chance through 7 days...medium...40 percent.

 

3. Central Atlantic:  A small area of low pressure located about 1200 miles southwest of

the Azores is producing limited showers and thunderstorms. Upper-level winds are only marginally conducive for development while the system moves slowly eastward over the next couple of days

* Formation chance through 48 hours...low...30 percent.

* Formation chance through 7 days...low...30 percent.