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| #980084 (Received by flhurricane at: 10:54 AM 30.Aug.2019) TCPAT5 BULLETIN Hurricane Dorian Advisory Number 25 NWS National Hurricane Center Miami FL AL052019 1100 AM AST Fri Aug 30 2019 ...DANGEROUS HURRICANE DORIAN POSES A SIGNIFICANT THREAT TO FLORIDA AND THE NORTHWESTERN BAHAMAS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...24.5N 69.8W ABOUT 480 MI...770 KM E OF THE NORTHWESTERN BAHAMAS ABOUT 660 MI...1060 KM E OF WEST PALM BEACH FLORIDA MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...972 MB...28.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Northwestern Bahamas A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests in southern and central Florida 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 1100 AM AST (1500 UTC), the eye of Hurricane Dorian was located near latitude 24.5 North, longitude 69.8 West. Dorian is moving toward the northwest near 10 mph (17 km/h). A slower west- northwestward to westward motion should begin tonight and continue into early next week. On this track, the core of Dorian should move over the Atlantic well north of the southeastern and central Bahamas today and tomorrow, be near or over the northwestern Bahamas on Sunday, and be near the Florida peninsula late Monday. Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Dorian is expected to become a major hurricane later today, and it will remain an extremely dangerous major hurricane while it moves near the northwestern Bahamas and approaches the Florida peninsula into early next week. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). The estimated minimum central pressure from the NOAA and Air Force reconnaissance planes is 972 mb (28.71 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Hurricane conditions are possible in the northwestern Bahamas by Sunday, with tropical storm conditions possible by Saturday night or Sunday morning. STORM SURGE: A life-threatening storm surge will raise water levels by as much as 10 to 15 feet above normal tide levels in areas of onshore winds in the northwestern Bahamas. Near the coast,the surge will be accompanied by large and destructive waves. RAINFALL: Dorian is expected to produce the following rainfall accumulations this weekend into the middle of next week: Northwestern Bahamas and coastal sections of the Southeast United States...6 to 12 inches, isolated 18 inches. Central Bahamas...1 to 2 inches, isolated 4 inches. This rainfall may cause life-threatening flash floods. SURF: Swells are likely to begin affecting the east-facing shores of the Bahamas, the Florida east coast, 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 intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. $$ Forecaster Avila |
