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| #979958 (Received by flhurricane at: 10:47 AM 29.Aug.2019) TCPAT5 BULLETIN Hurricane Dorian Advisory Number 21 NWS National Hurricane Center Miami FL AL052019 1100 AM AST Thu Aug 29 2019 ...DORIAN MOVING NORTHWESTWARD... ...EXPECTED TO STRENGTHEN DURING THE NEXT COUPLE OF DAYS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...21.4N 67.2W ABOUT 220 MI...355 KM NNW OF SAN JUAN PUERTO RICO ABOUT 370 MI...600 KM E OF THE SOUTHEASTERN BAHAMAS MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the northwestern and central Bahamas should monitor the progress of Dorian. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Hurricane Dorian was located near latitude 21.4 North, longitude 67.2 West. Dorian is moving toward the northwest near 13 mph (20 km/h), and this general motion is expected to continue through Friday. A west-northwestward motion is forecast to begin by Friday night and continue into the weekend. On this track, Dorian should move over the Atlantic well east of the southeastern and central Bahamas today and on Friday, approach the northwestern Bahamas Saturday, and move near or over portions of the northwest Bahamas on Sunday. Maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Strengthening is forecast during the next few days, and Dorian is expected to become a major hurricane on Friday, and remain an extremely dangerous hurricane through the weekend. Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The minimum central pressure based on data from a NOAA Hurricane Hunter aircraft is 986 mb (29.12 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Dorian is expected to produce the following rainfall accumulations this weekend into early next week: The central Bahamas...1 to 2 inches, isolated 4 inches. The northwestern Bahamas...3 to 6 inches, isolated 8 inches. Coastal sections of the Southeast United States...4 to 8 inches, isolated 12 inches. This rainfall may cause life-threatening flash floods. SURF: Swells around the U.S. and British Virgin Islands and Puerto Rico should gradually diminish today. Swells are likely to begin affecting the east-facing shores of the Bahamas and the southeastern United States coast during the next few days. 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 500 PM AST. $$ Forecaster Brown |
