Tropical Storm Dorian Advisory Number 9
NWS National Hurricane Center Miami FL AL052019
1100 AM AST Mon Aug 26, 2019
…HURRICANE CONDITIONS POSSIBLE IN PORTIONS OF THE NORTHERN
…TROPICAL STORM CONDITIONS EXPECTED IN THE WINDWARD ISLANDS LATER TODAY…
SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
ABOUT 135 MI…220 KM ESE OF BARBADOS
ABOUT 245 MI…395 KM ESE OF ST. LUCIA
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…WNW OR 285 DEGREES AT 14 MPH…22 KM/H
MINIMUM CENTRAL PRESSURE…1002 MB…29.59 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
A Hurricane Watch has been issued by the government of St. Lucia for St. Lucia.
The government of France has upgraded the Tropical Storm Watch to a Tropical Storm Warning for Martinique.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Watch is in effect for…
* St. Lucia
A Tropical Storm Warning is in effect for…
* St. Lucia
* St. Vincent and the Grenadines
A Tropical Storm Watch is in effect for…
* Grenada and its dependencies
* Saba and St. Eustatius
A Hurricane Watch means that hurricane conditions are possible within the watch area, in this case, within the next 24 hours.
A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours.
A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours.
Interests in Puerto Rico, the Virgin Islands, and Hispaniola should monitor the progress of Dorian as watches for these areas later could be required later today.
For storm information specific to your area, please monitor products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 1100 AM AST (1500 UTC), the center of Tropical Storm Dorian was located near latitude 12.3 North, longitude 57.7 West. Dorian is moving toward the west-northwest near 14 mph (22 km/h) and this motion is expected to continue through Tuesday night, followed by a turn toward the northwest on Wednesday. On the forecast track, the center of Dorian is expected to be near the Windward Islands late today and tonight, and move into the eastern Caribbean Sea on Tuesday. Dorian is expected to pass near or south of Puerto Rico on Wednesday and approach eastern Hispaniola Wednesday night.
Maximum sustained winds are near 60 mph (95 km/h) with higher gusts.
Some strengthening is forecast during the next few days, and Dorian could be near hurricane strength when it passes through the northern Windward Islands on Tuesday, and is expected to be a hurricane when it moves near Puerto Rico and eastern Hispaniola.
Dorian is a small tropical cyclone. Tropical-storm-force winds only extend outward up to 45 miles (75 km) from the center.
The estimated minimum central pressure is 1002 mb (29.59 inches).
HAZARDS AFFECTING LAND
Rainfall: Dorian is expected to produce total rain accumulations of 3 to 8 inches in the Windward Islands from Martinique south to St. Vincent, including Barbados. Isolated maximum totals of 10 inches are possible across the northern Windward Islands. Rainfall totals of 1 to 3 inches are expected from the Grenadines, south to Grenada and across Dominica.
WIND: Hurricane conditions are possible tonight and early Tuesday within the Hurricane Watch area in the Lesser Antilles. Tropical storm conditions are likely in the warning area by late today.
Tropical storm conditions are possible within the tropical storm watch area by tonight or Tuesday.
SURF: Swells generated by Dorian will be affecting portions of the Lesser Antilles by late today. These swells could cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.
Source: The Daily Herald https://www.thedailyherald.sx/islands/90291-tropical-storm-watch-for-saba-statia