554
WTNT35 KNHC 211732
TCPAT5

BULLETIN
Hurricane Erin Intermediate Advisory Number 41A
NWS National Hurricane Center Miami FL AL052025
200 PM EDT Thu Aug 21 2025

...TROPICAL STORM WARNING ISSUED FOR BERMUDA...
...BEACHGOERS ARE CAUTIONED AGAINST SWIMMING AT MOST U.S. EAST
COAST BEACHES DUE TO LIFE-THREATENING SURF AND RIP CURRENTS...


SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION ----------------------------------------------
LOCATION...35.6N 70.5W
ABOUT 285 MI...455 KM E OF CAPE HATTERAS NORTH CAROLINA
ABOUT 400 MI...640 KM NW OF BERMUDA
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H
PRESENT MOVEMENT...NE OR 45 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...952 MB...28.12 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

The Bermuda Weather Service has issued a Tropical Storm Warning for
Bermuda.

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
* Bermuda

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline, in
the indicated locations. For a depiction of areas at risk, please
see the National Weather Service Storm Surge Watch/Warning Graphic,
available at hurricanes.gov. This is a life-threatening situation.
Persons located within these areas should take all necessary actions
to protect life and property from rising water and the potential for
other dangerous conditions. Promptly follow evacuation and other
instructions from local officials.

Interests in Atlantic Canada should monitor the progress of Erin and
refer to local watches and warnings issued by Environment Canada.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 200 PM EDT (1800 UTC), the center of Hurricane Erin was located
near latitude 35.6 North, longitude 70.5 West. Erin is moving toward
the northeast near 18 mph (30 km/h). A faster northeastward to east-northeastward motion is expected during the next couple of
days. On the forecast track, the center of Erin will move over the
western Atlantic between the U.S. east coast and Bermuda through
early Friday, and then pass south of Atlantic Canada Friday and
Saturday.

Maximum sustained winds are near 100 mph (155 km/h) with higher
gusts. Gradual weakening is forecast during the next couple of
days. Erin is expected to become post-tropical on Saturday.

Erin is a very large hurricane. Hurricane-force winds extend
outward up to 105 miles (165 km) from the center and
tropical-storm-force winds extend outward up to 320
miles (520 km).

The estimated minimum central pressure is 952 mb (28.12 inches).


HAZARDS AFFECTING LAND
----------------------
Key messages for Erin can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC.

WIND: Tropical storm conditions will continue to affect portions of
the North Carolina Outer Banks and the Virginia coastline for the
next few hours. Elsewhere along the mid-Atlantic and southern New
England coast, wind gusts to tropical storm force are likely through
early Friday. Tropical storm conditions are expected on Bermuda
late this afternoon through early Friday. Gusts to gale force are
possible along portions of the coast of Nova Scotia on Friday and
the Avalon Peninsula of Newfoundland on Saturday.

SURF: Swells generated by Erin will affect the Bahamas, Bermuda,
the east coast of the United States, and Atlantic Canada during the
next several days. These rough ocean conditions are expected to
cause life-threatening surf and rip currents. Please consult
products from your local weather forecast office for more
information.

A depiction of rip current risk for the United States can be found
at: hurricanes.gov/graphics_at5.shtml?ripCurrents

STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...

Cape Lookout to Duck, North Carolina...2 to 4 ft

The deepest water will occur along the immediate coast where the
surge will be accompanied by large and dangerous waves.
Surge-related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by
your local National Weather Service forecast office.

For a complete depiction of areas at risk of storm surge inundation,
please see the National Weather Service Peak Storm Surge Graphic,
available at hurricanes.gov/graphics_at5.shtml?peakSurge.


NEXT ADVISORY
-------------
Next complete advisory at 500 PM EDT.

$$
Forecaster Cangialosi


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