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Hurricane MATTHEW Public Advisory Number 36A
2016-10-07 07:59:26| National Hurricane Center (Atlantic)
Issued at 200 AM EDT FRI OCT 07 2016 000 WTNT34 KNHC 070559 TCPAT4 BULLETIN HURRICANE MATTHEW INTERMEDIATE ADVISORY NUMBER 36A NWS NATIONAL HURRICANE CENTER MIAMI FL AL142016 200 AM EDT FRI OCT 07 2016 ...EYE OF EXTREMELY DANGEROUS HURRICANE MATTHEW MOVING CLOSER TO THE EAST COAST OF FLORIDA... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...27.6N 79.7W ABOUT 45 MI...70 KM E OF VERO BEACH FLORIDA ABOUT 80 MI...125 KM SE OF CAPE CANAVERAL FLORIDA MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...938 MB...27.70 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Northwestern Bahamas, including the Abacos, Andros Island, Berry Islands, Bimini, Eleuthera, Grand Bahama Island, and New Providence * Boca Raton to South Santee River * Lake Okeechobee A Tropical Storm Warning is in effect for... * Ocean Reef to south of Boca Raton * Anclote River to Suwannee River * North of South Santee River to Surf City A Tropical Storm Watch is in effect for... * Englewood to Anclote River Interests elsewhere in the Florida Peninsula and in the Carolinas should monitor the progress of Matthew. A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm- force winds, conditions that make outside preparations difficult or dangerous. 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 within 36 hours. 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 200 AM EDT (0600 UTC), the eye of Hurricane Matthew was located by NOAA Doppler weather radars and an Air Force Reserve Hurricane Hunter aircraft near latitude 27.6 North, longitude 79.7 West. Matthew is moving toward the northwest near 14 mph (22 km/h). A turn toward the north-northwest is expected later today, and a turn toward the north is expected tonight or Saturday. On the forecast track, the center of Matthew will be moving near or over the east coast of the Florida peninsula through tonight, and near or over the coasts of Georgia and South Carolina on Saturday. Maximum sustained winds have decreased to near 120 mph (195 km/h) with higher gusts. Matthew is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Although some additional weakening is forecast during the next 48 hours, Matthew is expected to be a powerful category 3 hurricane as it moves near the coast of Florida. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). During the past hour, a wind gust to 70 mph (113 km/h) was reported at Vero Beach, Florida, and a gust to 60 mph occurred at Melbourne, Florida. The latest minimum central pressure reported by the reconnaissance aircraft was 938 mb (27.70 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Hurricane conditions should diminish over portions of the northwestern Bahamas this morning. Hurricane conditions are expected to first reach the hurricane warning area in Florida during the next several hours and will spread northward within the warning area through today. Tropical storm conditions will continue to spread northward in the warning area along the Florida east coast today. Hurricane conditions are expected to spread northward in the warning area in Georgia and South Carolina tonight and Saturday with tropical storm conditions expected later today. Winds increase rapidly in elevation in a tropical cyclone. Residents in high-rise buildings should be aware that the winds at the top of a 30-story building will be, on average, about one Saffir-Simpson category higher than the winds near the surface. Tropical storm conditions are expected in the tropical storm warning area in the Carolinas on tonight and Saturday. STORM SURGE: The combination of a dangerous storm surge and large and destructive waves could raise water levels by as much as the following amounts above normal tide levels... Northwestern Bahamas...10 to 15 feet The water could reach the following heights above ground if the peak surge occurs at the time of high tide... Sebastian Inlet, Florida, to Edisto Beach, South Carolina, including portions of the St. Johns River...7 to 11 ft Edisto Beach to South Santee River, South Carolina...4 to 6 ft Boca Raton to Sebastian Inlet, Florida...4 to 6 ft South Santee River, South Carolina, to Cape Fear, North Carolina...2 to 4 ft Virginia Key to Boca Raton, Florida...1 to 3 ft Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. Large waves generated by Matthew will cause water rises to occur well in advance of and well away from the track of the center. 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. There is a danger of life- threatening inundation during the next 36 hours along the Florida east coast, the Georgia coast, and the South Carolina coast from Boca Raton, Florida, to South Santee River, South Carolina. There is the possibility of life-threatening inundation during the next 48 hours from north of South Santee River, South Carolina, to Cape Fear, North Carolina. For a depiction of areas at risk, please see the Prototype National Weather Service Storm Surge Watch/Warning Graphic. For information specific to your area, please see products issued by your local National Weather Service forecast office. The Prototype Storm Surge Watch/Warning Graphic is a depiction of areas that would qualify for inclusion under a storm surge watch or warning currently under development by the National Weather Service and planned for operational use in 2017. The Prototype Graphic is available at hurricanes.gov. RAINFALL: Matthew is expected to produce total rainfall amounts in the following areas: The northern Bahamas...8 to 12 inches, isolated 15 inches The Atlantic coast of the United States from Central Florida to eastern North Carolina...6 to 12 inches with isolated totals near 15 inches along the coasts TORNADOES: An isolated tornado or two is possible along the east-central Florida coast tonight. SURF: Swells generated by Matthew will continue to affect portions of the north coast of Cuba and the Bahamas during the next few days, and will spread northward along the east coast of Florida and the southeast U.S. coast through the weekend. These swells will likely cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM EDT. $$ Forecaster Stewart
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