Hurricane Irma Public Advisory
Hurricane Irma Advisory Number 29
NWS National Hurricane Center Miami FL AL112017
500 AM AST Wed Sep 06 2017
...EYE OF POTENTIALLY CATASTROPHIC CATEGORY 5 HURRICANE IRMA
MOVING AWAY FROM BARBUDA AND TOWARD ST. MARTIN...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
ABOUT 35 MI...55 KM ESE OF ST. MARTIN
ABOUT 145 MI...235 KM E OF ST. CROIX
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...914 MB...26.99 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The Government of the Bahamas has issued a Hurricane Warning for
the Southeastern Bahamas and the Turks and Caicos Islands, and a
Hurricane Watch for the Central Bahamas.
The Meteorological Service of Barbados has discontinued the
Tropical Storm Warning for Dominica.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Antigua, Barbuda, Anguilla, Montserrat, St. Kitts, and Nevis
* Saba, St. Eustatius, and Sint Maarten
* Saint Martin and Saint Barthelemy
* British Virgin Islands
* U.S. Virgin Islands
* Puerto Rico, Vieques, and Culebra
* Dominican Republic from Cabo Engano to the northern border with
* Southeastern Bahamas and the Turks and Caicos Islands
A Hurricane Watch is in effect for...
* Haiti from the northern border with the Dominican Republic to Le
Mole St. Nicholas
* Turks and Caicos Islands
* Southeastern Bahamas
* Cuba from Matanzas province eastward to Guantanamo province
* Central Bahamas
A Tropical Storm Warning is in effect for...
* Dominican Republic from south of Cabo Engano westward to the
southern border with Haiti
A Tropical Storm Watch is in effect for...
* Haiti from south of Le Mole St. Nicholas to Port-Au-Prince
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.
A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
Interests elsewhere in the Dominican Republic and Haiti, as
well as Cuba, the northwestern Bahamas, and Florida should monitor
the progress of Irma.
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
the United States, please monitor products issued by your national
DISCUSSION AND 48-HOUR OUTLOOK
At 500 AM AST (0900 UTC), the center of Hurricane Irma was located
near latitude 17.9 North, longitude 62.6 West. Irma is moving
toward the west-northwest near 16 mph (26 km/h), and this general
motion is expected to continue for the next couple of days. On the
forecast track, the extremely dangerous core of Irma will move over
portions of the northern Leeward Islands this morning, move near or
over portions of the northern Virgin Islands later today, and pass
near or just north of Puerto Rico this afternoon or tonight.
Maximum sustained winds remain near 185 mph (295 km/h) with higher
gusts. Irma is a category 5 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Some fluctuations in intensity are likely
during the next day or two, but Irma is forecast to remain a
powerful category 4 or 5 hurricane during the next couple of days.
Hurricane-force winds extend outward up to 50 miles (85 km) from the
center and tropical-storm-force winds extend outward up to 175 miles
(280 km). St. Martin recently reported a wind gust of 61 mph
The estimated minimum central pressure is 914 mb (26.99 inches).
click HERE for WTOC's Dave Turkey on Hurricane Irma