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| #1056192 (Received by flhurricane at: 10:56 PM 09.Aug.2021) TCPAT1 BULLETIN Potential Tropical Cyclone Six Advisory Number 2 NWS National Hurricane Center Miami FL AL062021 1100 PM AST Mon Aug 09 2021 ...HEAVY RAINS AND GUSTY WINDS SPREADING ACROSS THE LEEWARD ISLANDS... ...NEW TROPICAL STORM WATCHES AND WARNINGS ISSUED... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...15.1N 60.8W ABOUT 40 MI...65 KM ESE OF DOMINICA ABOUT 90 MI...150 KM SSE OF GUADELOUPE MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Watch for the U.S. Virgin Islands, Puerto Rico, Culebra, and Vieques has been upgraded to a Tropical Storm Warning. The government of the Dominican Republic has issued a Tropical Storm Warning on the south coast from Punta Palenque eastward and on the north coast from Cabo Frances Viejo eastward. A Tropical Storm Watch has been issued for northern Haiti from the border with the Dominican Republic to Gonaives. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Puerto Rico, including Culebra and Vieques * U.S. Virgin Islands * Dominican Republic on the south coast from Punta Palenque eastward and on the north coast from Cabo Frances Viejo eastward A Tropical Storm Watch is in effect for... * Martinique and Guadeloupe * Dominica * Saba and St. Eustatius * Dominican Republic on the north coast from Cabo Frances Viejo to the Dominican Republic/Haiti border. * Haiti from the northern border with the Dominican Republic to Gonaives 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. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the disturbance was centered near latitude 15.1 North, longitude 60.8 West. The system is moving toward the west-northwest near 16 mph (26 km/h) and this general motion is expected to continue during the next few days. On the forecast track, the disturbance is expected to move across the southern Leeward Islands during the next few hours, pass near or over the U.S. Virgin Islands and Puerto Rico late Tuesday and Tuesday night, and be near or over Hispaniola on Wednesday. Maximum sustained winds remain near 35 mph (55 km/h) with higher gusts. Gradual strengthening is forecast during the next day or two and the disturbance is expected to become a tropical storm overnight. * Formation chance through 48 hours...high...90 percent. * Formation chance through 5 days...high...90 percent. The estimated minimum central pressure based on surface observations is 1010 mb (29.83 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Potential Tropical Cyclone Six can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC and on the web at www.hurricanes.gov/graphics_at1.shtml?key_messages. RAINFALL: The potential tropical cyclone is expected to produce the following rainfall amounts: Over the Leeward Islands, Virgin Islands, and Puerto Rico...2 to 4 inches, with isolated amounts of 6 inches. This rainfall could lead to flash, urban, and small stream flooding and potential mudslides across the U.S. Virgin Islands and Puerto Rico. Over the northern Windward Islands...1 to 3 inches. Over the Dominican Republic...3 to 6 inches. WIND: Tropical storm conditions are possible within the watch area in the Lesser Antilles overnight. Tropical storm conditions are expected in the warning areas in the U.S. Virgin Islands and Puerto Rico on Tuesday, and in the Dominican Republic by early Wednesday. Tropical storm conditions are possible elsewhere along the northern coasts of the Dominican Republic and northern Haiti beginning late Wednesday. SURF: Swells generated by the disturbance are affecting portions of the Leeward Islands. These swells are expected to spread across the U.S. Virgin Islands and Puerto Rico on Tuesday and across portions of Hispaniola on Wednesday, and they could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 AM AST. Next complete advisory at 500 AM AST. $$ Forecaster Cangialosi |
