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ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN Hurricane Maria Intermediate Advisory Number 21A NWS National Hurricane Center Miami FL AL152017 800 AM AST Thu Sep 21 2017 ...MARIA'S LARGE EYE PASSING OFFSHORE OF THE NORTHEASTERN COAST OF THE DOMINICAN REPUBLIC... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...19.9N 68.7W ABOUT 95 MI...150 KM NNW OF PUNTA CANA DOMINICAN REPUBLIC ABOUT 190 MI...305 KM SE OF GRAND TURK ISLAND MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Bahamas has issued a Tropical Storm Watch for the central Bahamas. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Dominican Republic from Cabo Engano to Puerto Plata * Turks and Caicos Islands and the Southeastern Bahamas A Tropical Storm Warning is in effect for... * Dominican Republic west of Puerto Plata to the northern border of the Dominican Republic and Haiti * Dominican Republic west of Cabo Engano to Punta Palenque A Hurricane Watch is in effect for... * Dominican Republic from Isla Saona to Cabo Engano A Tropical Storm Watch is in effect for... * Central Bahamas 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 Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Hurricane Watch means that hurricane conditions are possible within the watch area, in this case within the next 12 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Hispaniola and the Bahamas should monitor the progress of Maria. 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 meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM AST (1200 UTC), the large eye of Hurricane Maria was located near latitude 19.9 North, longitude 68.7 West. Maria is moving toward the northwest near 9 mph (15 km/h), and this general motion is expected through tonight. A turn toward the north-northwest is forecast on Friday. On the forecast track, the eye of Hurricane Maria will continue to pass offshore of the northeastern coast of the Dominican Republic today. Maria should then move near the Turks and Caicos Islands and the southeastern Bahamas tonight and Friday. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Maria is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some strengthening is possible during the next day or so. Hurricane-force winds extend outward up to 60 miles (95 km) from the center, and tropical-storm-force winds extend outward up to 150 miles (240 km). The estimated minimum central pressure is 959 mb (28.32 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Strong gusty winds are still occurring over portions of Puerto Rico, but should continue to gradually subside this morning. Tropical storm or hurricane conditions are continuing across portions of the warning areas in the Dominican Republic. Hurricane conditions are expected to begin in portions of the Turks and Caicos Islands and the southeastern Bahamas tonight, with tropical storm conditions beginning in these areas later today. Tropical storm conditions are possible in the central Bahamas beginning late Friday. STORM SURGE: Water levels in Puerto Rico should continue receding during the next few hours. A dangerous storm surge accompanied by large and destructive waves will raise water levels by as much as 4 to 6 feet above normal tide levels in the hurricane warning area in the Dominican Republic, and 1 to 3 ft elsewhere along the northern coasts of the Dominican Republic and Haiti. A dangerous storm surge accompanied by large and destructive waves will raise water levels by as much as 9 to 12 feet above normal tide levels within the hurricane warning area of the southeastern Bahamas and the Turks and Caicos Islands. RAINFALL: Maria is expected to produce the following rainfall accumulations through Saturday: Puerto Rico...additional 4 to 8 inches, isolated maximum storm total amounts 35 inches. U.S. and British Virgin Islands...additional 2 to 4 inches. Northern and eastern Dominican Republic, Turks and Caicos, and Mayaguana in southeast Bahamas...8 to 16 inches, isolated 20 inches. Inagua Islands, Crooked Island, and rest of southeast Bahamas...4 to 8 inches. Northern Haiti...2 to 4 inches. Rainfall on these islands will continue to cause life-threatening flash floods and mudslides. SURF: Swells generated by Maria are still affecting the Leeward Islands, Puerto Rico, and the Virgin Islands. These swells are also affecting the northern coast of Hispaniola, the Turks and Caicos Islands, and should begin in the Southeastern Bahamas later today. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Berg NNNN