####018002060####
WTNT35 KNHC 250840

TCPAT5

 

BULLETIN

Hurricane Tammy Advisory Number  28

NWS National Hurricane Center Miami FL       AL202023

500 AM AST Wed Oct 25 2023

 

...TAMMY STRENGTHENS OVER THE OPEN ATLANTIC...

...FORECAST TO BECOME A POWERFUL EXTRATROPICAL CYCLONE...

 

 

SUMMARY OF 500 AM AST...0900 UTC...INFORMATION

----------------------------------------------

LOCATION...25.6N 60.2W

ABOUT 540 MI...870 KM SSE OF BERMUDA

MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H

PRESENT MOVEMENT...NE OR 45 DEGREES AT 10 MPH...17 KM/H

MINIMUM CENTRAL PRESSURE...969 MB...28.62 INCHES

 

 

WATCHES AND WARNINGS

--------------------

There are no coastal watches or warnings in effect.

 

 

DISCUSSION AND OUTLOOK

----------------------

At 500 AM AST (0900 UTC), the center of Hurricane Tammy was located

near latitude 25.6 North, longitude 60.2 West. Tammy is moving

toward the northeast near 10 mph (17 km/h). A northward turn is

expected later today, followed by a slower northwestward motion on

Thursday and Friday.

 

Maximum sustained winds have increased to near 100 mph (155 km/h) 

with higher gusts.  Some additional strengthening is possible today, 

followed by weakening through late this week. Tammy is forecast to 

become a powerful post-tropical cyclone by Thursday.

 

Hurricane-force winds extend outward up to 25 miles (35 km) from the

center and tropical-storm-force winds extend outward up to 175 miles

(280 km).

 

The estimated minimum central pressure is 969 mb (28.62 inches).

 

 

HAZARDS AFFECTING LAND

----------------------

SURF:  Swells generated by Tammy will continue to affect portions of

the Leeward Islands, the British and U.S. Virgin Islands, and Puerto

Rico during the next couple of days. These swells are likely to

cause life-threatening surf and rip current conditions. Please

consult products from your local weather office.

 

 

NEXT ADVISORY

-------------

Next complete advisory at 1100 AM AST.

 

$$

Forecaster Kelly