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Tropical Storm Michael Public Advisory Number 21A

2018-10-12 01:49:48| National Hurricane Center (Atlantic)

Issued at 800 PM EDT Thu Oct 11 2018 000 WTNT34 KNHC 112349 TCPAT4 BULLETIN Tropical Storm Michael Intermediate Advisory Number 21A NWS National Hurricane Center Miami FL AL142018 800 PM EDT Thu Oct 11 2018 ...MICHAEL LOSING TROPICAL CHARACTERISTICS... ...DAMAGING WINDS AND LIFE-THREATENING FLASH FLOODING STILL OCCURRING OVER PORTIONS OF NORTH CAROLINA AND VIRGINIA... SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...36.5N 77.8W ABOUT 5 MI...10 KM NW OF ROANOKE RAPIDS NORTH CAROLINA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 24 MPH...39 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.20 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * Ocracoke Inlet North Carolina to Duck North Carolina A Tropical Storm Warning is in effect for... * Murrells Inlet South Carolina to Duck North Carolina * Pamlico and Albemarle Sounds A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline. 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 PM EDT (0000 UTC), the center of Tropical Storm Michael was located near latitude 36.5 North, longitude 77.8 West. Michael is moving toward the northeast near 24 mph (39 km/h), and this motion is expected to continue with an increase in forward speed through tonight. A turn toward the east-northeast at an even faster forward speed is expected on Friday and Saturday. On the forecast track, the center of Michael will cross into southeastern Virginia during the next couple of hours and then move into the western Atlantic Ocean overnight. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Michael is forecast to intensify as it becomes a post-tropical low over the Atlantic late tonight and Friday. Tropical-storm-force winds extend outward up to 230 miles (370 km), primarily over water to the southeast of the center. A sustained wind of 45 mph (72 km/h) and a gust to 67 mph (108 km/h) was recently reported at Cherry Point Marine Corps Air Station in North Carolina. The estimated minimum central pressure based on recent surface observations is 989 mb (29.20 inches). HAZARDS AFFECTING LAND ---------------------- 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 has the potential to reach the following heights above ground if peak surge occurs at the time of high tide... Sound side of the North Carolina Outer Banks from Ocracoke Inlet to Duck...2-4 ft WIND: Tropical storm conditions are occurring over portions of northeastern South Carolina and central and eastern North Carolina. Damaging tropical-storm-force wind gusts will spread from central North Carolina and southern Virginia across northeastern North Carolina and eastern Virginia during the next several hours. Gale- to storm-force winds are expected over portions of southeastern Virginia, extreme northeastern North Carolina, and the Delmarva Peninsula late tonight and Friday morning when Michael becomes post-tropical off the Mid-Atlantic coast. RAINFALL: Michael is expected to produce total rain accumulations of 4 to 7 inches from north-central North Carolina, into south- central to southeast Virginia, including the southern Delmarva Peninsula. Isolated maximum totals of 9 inches are possible in North Carolina and Virginia. This rainfall could lead to life-threatening flash floods. Rainfall totals of 1 to 3 inches expected across the coastal northern Mid-Atlantic and southern New England. TORNADOES: A few tornadoes are possible through this evening from northeastern North Carolina across southeast Virginia into the Delmarva Peninsula. NEXT ADVISORY ------------- Next complete advisory at 1100 PM EDT. $$ Forecaster Berg

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