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WTNT35 KNHC 221434

TCPAT5

 

BULLETIN

Hurricane Tammy Advisory Number  17

NWS National Hurricane Center Miami FL       AL202023

1100 AM AST Sun Oct 22 2023

 

...TAMMY PULLING AWAY FROM THE NORTHERN LEEWARD ISLANDS...

 

 

SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION

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

LOCATION...19.1N 63.0W

ABOUT 60 MI...100 KM N OF ANGUILLA

MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H

PRESENT MOVEMENT...NW OR 320 DEGREES AT 9 MPH...15 KM/H

MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES

 

 

WATCHES AND WARNINGS

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

There are no coastal watches or warnings in effect.

 

 

DISCUSSION AND OUTLOOK

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

At 1100 AM AST (1500 UTC), the center of Hurricane Tammy was located

near latitude 19.1 North, longitude 63.0 West. Tammy is moving

toward the northwest near 9 mph (15 km/h) and this general

motion is expected today.  A turn toward the north is expected

tonight, followed by a north-northeast or northeast motion on

Tuesday.

 

Maximum sustained winds are near 80 mph (130 km/h) with higher

gusts.  Little change in strength is forecast during the next few

days.

 

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

center and tropical-storm-force winds extend outward up to 140 miles

(220 km).

 

The estimated minimum central pressure is 992 mb (29.30 inches).

 

 

HAZARDS AFFECTING LAND

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

Key messages for Tammy can be found in the Tropical Cyclone

Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC

and on the web at hurricanes.gov/text/MIATCDAT5.shtml

 

RAINFALL: Tammy is expected to produce the following storm total

rainfall:

 

Leeward Islands: 4 to 8 inches with storm total maximum amounts of

12 inches

 

Martinique and Dominica: Additional 2 to 4 inches, storm total

maximum 6 inches

 

British and U.S. Virgin Islands into eastern Puerto Rico: 1 to 2

inches with maximum storm total amounts of 4 inches

 

These rains may produce isolated flash and urban flooding, along

with isolated mudslides in areas of higher terrain.

 

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

the Lesser Antilles during the next few 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 500 PM AST.

 

$$

Forecaster Cangialosi