NWS National Hurricane Center Miami FL AL152017
200 PM AST Sun Sep 17 2017
…AIR FORCE HURRICANE HUNTER CURRENTLY INVESTIGATING MARIA…
SUMMARY OF 200 PM AST…1800 UTC…INFORMATION
ABOUT 405 MI…655 KM SE OF THE LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS…65 MPH…100 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 15 MPH…24 KM/H
MINIMUM CENTRAL PRESSURE…994 MB…29.36 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of France has issued a Hurricane Warning for
Guadeloupe and a Tropical Storm Warning for Martinique.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for…
A Tropical Storm Warning is in effect for…
* St. Lucia
A Hurricane Watch is in effect for…
* Antigua, Barbuda, St. Kitts, Nevis, and Montserrat
* Saba and St. Eustatius
* St. Maarten
* St. Martin and St. Barthelemy
A Tropical Storm Watch is in effect for…
* St. Vincent and the Grenadines
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of tropical-storm-
force winds, conditions that make outside preparations difficult or
dangerous. Preparations to protect life and property should be
rushed to completion.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
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 Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
Interests elsewhere in the Lesser Antilles, including the British
and U. S. Virgin Islands, as well as Puerto Rico should monitor the
progress of this system. Additional Tropical Storm or Hurricane
Watches and Warnings will likely be issued later today.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND 48-HOUR OUTLOOK
At 200 PM AST (1800 UTC), the center of Tropical Storm Maria was
located near latitude 13.6 North, longitude 56.9 West. Maria is
moving toward the west-northwest near 15 mph (24 km/h), and this
motion with a decrease in forward speed is expected through Tuesday.
On the forecast track, the center of Maria will move across the
Leeward Islands Monday night.
Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts. Strengthening is forecast during the next 48 hours, and
Maria is expected to become a hurricane later today or tonight.
Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.
The estimated minimum central pressure is 994 mb (29.36 inches).
Source: The Daily Herald https://www.thedailyherald.sx/islands/69447-tropical-storm-maria-intermediate-advisory-number-5a