ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN Hurricane Maria Advisory Number 22 NWS National Hurricane Center Miami FL AL152017 1100 AM AST Thu Sep 21 2017 ...MARIA HEADING TOWARD THE TURKS AND CAICOS ISLANDS... ...HEAVY RAINFALL AND FLOODING CONTINUES IN PUERTO RICO AND THE DOMINICAN REPUBLIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.2N 69.1W ABOUT 105 MI...175 KM ENE OF PUERTO PLATA DOMINICAN REPUBLIC ABOUT 155 MI...255 KM SE OF GRAND TURK ISLAND MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Dominican Republic has discontinued the Tropical Storm Warning along the southern coast of the Dominican Republic west of Andres/Boca Chica. The Hurricane Watch from Isla Saona to Cabo Engano has also been discontinued. 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 Andres/Boca Chica 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 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, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 AM AST (1500 UTC), the large eye of Hurricane Maria was located near latitude 20.2 North, longitude 69.1 West. Maria is moving toward the northwest near 9 mph (15 km/h), and this general motion is expected to continue through tonight. A turn toward the north-northwest is forecast early Friday, with that motion continuing through early Saturday. On the forecast track, Maria's eye will continue to pass offshore of the northern coast of the Dominican Republic today, and then move near or just east of the Turks and Caicos Islands and southeastern Bahamas tonight and on Friday. Data from an Air Force Reserve reconnaissance aircraft indicate that maximum sustained winds remain 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 minimum central pressure based on aircraft data is 960 mb (28.35 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Hurricane and tropical storm conditions continue across portions of the Dominican Republic. Tropical storm conditions are expected to begin in the Turks and Caicos Islands and the southeastern Bahamas later today, with hurricane conditions expected tonight or early Friday. Tropical storm conditions are possible in the central Bahamas beginning late Friday. Strong gusty winds are still possible today over portions of Puerto Rico, especially in heavier rainbands that are moving over the island. STORM SURGE: 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 affecting Puerto Rico, the Virgin Islands, the northern coast of Hispaniola, the Turks and Caicos Islands, and the southeastern Bahamas. These swells will reach the remainder of the Bahamas today and tonight and should reach portions of the United States southeastern coast on Friday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. $$ Forecaster Berg NNNN