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Hurricane Dorian Public Advisory Number 38A
2019-09-03 01:48:14| National Hurricane Center (Atlantic)
Issued at 800 PM EDT Mon Sep 02 2019 000 WTNT35 KNHC 022348 TCPAT5 BULLETIN Hurricane Dorian Intermediate Advisory Number 38A NWS National Hurricane Center Miami FL AL052019 800 PM EDT Mon Sep 02 2019 ...EXTREMELY POWERFUL HURRICANE DORIAN REMAINS STATIONARY AND CONTINUES TO PUMMEL GRAND BAHAMA ISLAND... SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...26.8N 78.4W ABOUT 25 MI...40 KM NE OF FREEPORT GRAND BAHAMA ISLAND ABOUT 105 MI...170 KM E OF WEST PALM BEACH FLORIDA MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H PRESENT MOVEMENT...STATIONARY MINIMUM CENTRAL PRESSURE...942 MB...27.82 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Lantana FL to Altamaha Sound GA A Storm Surge Watch is in effect for... * North of Deerfield Beach FL to south of Lantana FL * Altamaha Sound GA to South Santee River SC A Hurricane Warning is in effect for... * Grand Bahama and the Abacos Islands in the northwestern Bahamas * Jupiter Inlet FL to Ponte Vedra Beach FL A Hurricane Watch is in effect for... * North of Deerfield Beach FL to Jupiter Inlet FL * North of Ponte Vedra Beach FL to South Santee River SC A Tropical Storm Warning is in effect for... * North of Deerfield Beach FL to Jupiter Inlet FL A Tropical Storm Watch is in effect for... * North of Golden Beach FL to Deerfield Beach FL * Lake Okeechobee A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. 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 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. A Tropical Storm Warning means that tropical storm conditions are expected within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the coast of the Southeast and Mid-Atlantic coast of the United States should continue to monitor the progress of Dorian, as additional watches may be required tonight and Tuesday. 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 of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 PM EDT (0000 UTC), the eye of Hurricane Dorian was located near latitude 26.8 North, longitude 78.4 West. Dorian remains nearly stationary just north of Grand Bahama Island. A slow west-northwestward motion is expected to resume overnight and continue into early Tuesday. A turn toward the northwest is forecast by late Tuesday, with a northeastward motion forecast to begin by Wednesday night. On this track, the core of extremely dangerous Hurricane Dorian will continue to pound Grand Bahama Island into Tuesday morning. The hurricane will then move dangerously close to the Florida east coast late Tuesday through Wednesday evening and then move dangerously close to the Georgia and South Carolina coasts on Wednesday night and Thursday. Maximum sustained winds are near 140 mph (220 km/h) with higher gusts. This intensity estimate is based on data from the NOAA and Air Force Hurricane Hunters. Dorian is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Although gradual weakening is forecast, Dorian is expected to remain a powerful hurricane during the next couple of days. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). Sustained winds of 57 mph (93 km/h) with a gust to 68 mph (109 km/h) was recently reported at a NOAA Coastal Marine observing site at Settlement Point on the west end of Grand Bahama Island. The minimum central pressure of 942 mb (27.82 inches) is based on data provided by the NOAA and Air Force Hurricane Hunters. HAZARDS AFFECTING LAND ---------------------- WIND: Devastating hurricane conditions continue on Grand Bahama Island. Do not venture out into the eye, as winds will suddenly increase after the eye passes. Hurricane conditions are expected within the Hurricane Warning area in Florida by Tuesday. Hurricane conditions are possible in the Hurricane Watch area beginning Wednesday. Tropical storm conditions are expected within the Tropical Storm warning area through Tuesday, and are possible in the Tropical Storm watch area by tonight. STORM SURGE: A life-threatening storm surge will raise water levels by as much as 12 to 18 feet above normal tide levels in areas of onshore winds on Grand Bahama Island. Near the coast, the surge will be accompanied by large and destructive waves. Water levels should very slowly subside on the Abaco Islands during the day. The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Lantana FL to South Santee River SC...4 to 7 ft North of Deerfield Beach FL to Lantana FL...2 to 4 ft Water levels could begin to rise well in advance of the arrival of strong winds. The surge will be accompanied by large and destructive waves. Surge-related flooding depends on the how close the center of Dorian comes to the coast, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. RAINFALL: Dorian is expected to produce the following rainfall totals through late this week: Northwestern Bahamas...Additional 6 to 12 inches, isolated storm totals of 30 inches. Central Bahamas...Additional 1 to 3 inches, isolated storm totals of 6 inches. Coastal Carolinas...5 to 10 inches, isolated 15 inches. Atlantic Coast from the Florida peninsula through Georgia...4 to 8 inches, isolated 10 inches. This rainfall may cause life-threatening flash floods. SURF: Large swells are affecting the northwestern Bahamas, the Florida east coast, and the coast of Georgia. These swells are expected to spread northward along much of the remainder of the southeastern United States coast during the next couple of days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. TORNADOES: Isolated tornadoes are possible through Tuesday along the eastern coast of Florida. NEXT ADVISORY ------------- Next complete advisory at 1100 PM EDT. $$ Forecaster Cangialosi/Latto
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