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Hurricane Dorian Public Advisory Number 48A
2019-09-05 13:53:50| National Hurricane Center (Atlantic)
Issued at 800 AM EDT Thu Sep 05 2019 000 WTNT35 KNHC 051153 TCPAT5 BULLETIN Hurricane Dorian Intermediate Advisory Number 48A NWS National Hurricane Center Miami FL AL052019 800 AM EDT Thu Sep 05 2019 ...EYE OF DORIAN NOW MOVING NORTH-NORTHEASTWARD... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...32.1N 79.3W ABOUT 70 MI...115 KM SSE OF CHARLESTON SOUTH CAROLINA ABOUT 170 MI...275 KM SSW OF WILMINGTON NORTH CAROLINA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Savannah River to Poquoson VA * Pamlico and Albemarle Sounds * Neuse and Pamlico Rivers * Hampton Roads A Hurricane Warning is in effect for... * Savannah River to the North Carolina/Virginia border * Pamlico and Albemarle Sounds A Tropical Storm Warning is in effect for... * North Carolina/Virginia border to Chincoteague VA * Chesapeake Bay from Smith Point southward A Tropical Storm Watch is in effect for... * North of Chincoteague VA to Fenwick Island DE * Chesapeake Bay from Smith Point to Drum Point * Tidal Potomac south of Cobb Island * Woods Hole to Sagamore Beach MA * Nantucket and Martha's Vineyard MA 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 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 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 Mid-Atlantic and New England coasts of the United States, and Atlantic Canada, should continue to monitor the progress of Dorian. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 800 AM EDT (1200 UTC), the eye of Hurricane Dorian was located near latitude 32.1 North, longitude 79.3 West. Dorian is now moving toward the north-northeast near 8 mph (13 km/h). A turn toward the northeast is anticipated by tonight, and a northeastward motion at a faster forward speed is forecast on Friday. On the forecast track, the center of Dorian will continue to move close to the coast of South Carolina today, and then move near or over the coast of North Carolina tonight and Friday. The center should move to the southeast of extreme southeastern New England Friday night and Saturday morning, and approach Nova Scotia later on Saturday. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Dorian is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are expected this morning, followed by slow weakening through Saturday. However, Dorian is expected to remain a hurricane for the next few days. Hurricane-force winds extend outward up to 60 miles (95 km) from the center, and tropical-storm-force winds extend outward up to 195 miles (315 km). NOAA buoy 41004, located a short distance north of the eye, recently reported sustained winds of 60 mph (97 km/h) and a wind gust of 76 mph (122 km/h). Charleston International Airport recently reported a wind gust of 61 mph (98 km/h). The estimated minimum central pressure based on Air Force Reserve Hurricane Hunter data is 959 mb (28.32 inches). NOAA buoy 41004 recently reported a pressure of 976.0 mb (28.82 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are currently affecting portions of the Georgia and South Carolina coasts. Hurricane conditions are expected along portions of the South Carolina coast later this morning. Tropical storm conditions are spreading along the coast of North Carolina, and hurricane conditions are expected to begin later today. Tropical storm conditions are expected in the Tropical Storm Warning area in the Mid-Atlantic states by Friday, with tropical storm conditions possible in the Tropical Storm Watch area Friday or Friday night. Tropical storm conditions are possible over portions of southeastern Massachusetts by late Friday or early Saturday. STORM SURGE: 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... Isle of Palms to Myrtle Beach SC...5 to 8 ft Myrtle Beach SC to Duck NC, including Pamlico and Albemarle Sounds and the Neuse and Pamlico Rivers...4 to 7 ft Duck NC to Poquoson VA, including Hampton Roads...2 to 4 ft Savannah River to Isle of Palms SC...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 Friday: Coastal Carolinas...6 to 12 inches, isolated 15 inches Far Southeast Virginia...3 to 8 inches Coastal Georgia...1 to 2 inches Extreme southeastern New England...2 to 4 inches This rainfall may cause life-threatening flash floods. SURF: Large swells will affect the northwestern Bahamas, and the entire southeastern United States coast from Florida through North Carolina 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. TORNADOES: A few tornadoes are possible through this afternoon near the coastal South and North Carolina border area. This threat will expand northeastward across the rest of eastern North Carolina during the afternoon and continue into tonight. NEXT ADVISORY ------------- Next complete advisory at 1100 AM EDT. $$ Forecaster Beven
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