...DORIAN STRENGTHENING... ...NEW TROPICAL STORM WARNINGS AND WATCHES ISSUED... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...11.5N 54.2W ABOUT 375 MI...605 KM ESE OF BARBADOS ABOUT 485 MI...780 KM ESE OF ST. LUCIA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Government of St. Lucia has issued a Tropical Storm Warning for St. Lucia. The Government of Barbados has issued a Tropical Storm Warning for St. Vincent and the Grenadines. The Government of Trinidad and Tobago has issued a Tropical Storm Watch for Grenada and its dependencies. The Government of France has issued a Tropical Storm Watch for Martinique. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Barbados * St. Lucia * St. Vincent and the Grenadines A Tropical Storm Watch is in effect for... * Martinique * Grenada and its dependencies 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. Additional watches or warnings could be issued tonight for portions of the Windward and Leeward Islands. Elsewhere, interests in Puerto Rico, the Virgin Islands, and Hispaniola should monitor the progress of Dorian. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Dorian was located near latitude 11.5 North, longitude 54.2 West. Dorian is moving toward the west near 14 mph (22 km/h), and this motion should continue through tonight. A turn toward the west-northwest is expected on Monday, with this motion continuing through Tuesday night. On the forecast track, the center of Dorian is expected to be near the Windward Islands late Monday or early Tuesday and move into the eastern Caribbean Sea on Tuesday. Maximum sustained winds have increased to near 50 mph (85 km/h) with higher gusts. Additional strengthening is expected during the next few days, and Dorian could be near hurricane strength by Tuesday over the eastern Caribbean Sea. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Dorian is expected to produce total rain accumulations of 2 to 4 inches in portions of the Lesser Antilles, with possible isolated maximum amounts of 6 inches. WIND: Tropical storm conditions are likely in the warning area by late Monday. Tropical storm conditions are possible within the watch area by Monday night or Tuesday. SURF: Swells generated by Dorian will be affecting portions of the Lesser Antilles by late Monday. These swells could cause life- threatening surf and rip current conditions. Please consult products from your local weather office.