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| #1109823 (Received by flhurricane at: 8:00 PM 29.Sep.2022) TCPAT4 BULLETIN Hurricane Ian Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL092022 800 PM EDT Thu Sep 29 2022 ...IAN TAKING AIM AT THE CAROLINAS AND GEORGIA WITH LIFE-THREATENING FLOODING, STORM SURGE AND STRONG WINDS... SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...29.7N 79.4W ABOUT 215 MI...350 KM S OF CHARLESTON SOUTH CAROLINA ABOUT 300 MI...485 KM SSW OF CAPE FEAR NORTH CAROLINA MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning south of Sebastian Inlet is discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Flagler/Volusia Line to Cape Fear * Neuse River * St. Johns River A Hurricane Warning is in effect for... * Savannah River to Cape Fear A Tropical Storm Warning is in effect for... * Sebastian Inlet to Savannah River * Cape Fear to Duck North Carolina * Pamlico Sound A Storm Surge Watch is in effect for... * North of Cape Fear to Duck North Carolina * Pamlico River * Cape Fear River A Hurricane Watch is in effect for... * Flagler/Volusia County Line to the Savannah River * East of Cape Fear to Surf City A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, 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 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, in the indicated locations. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in eastern North Carolina should monitor the progress of Ian. 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 Hurricane Ian was located by an Air Force Hurricane Hunter aircraft near latitude 29.7 North, longitude 79.4 West. Ian is moving toward the north-northeast near 10 mph (17 km/h). A turn toward the north is expected tonight, followed by a turn toward the north-northwest with an increase in forward speed Friday night. On the forecast track, Ian will approach the coast of South Carolina on Friday. The center will move farther inland across the Carolinas Friday night and Saturday. Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Ian could slightly strengthen before landfall tomorrow, and is forecast to rapidly weaken over the southeastern United States late Friday into Saturday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center, and tropical-storm-force winds extend outward up to 415 miles (665 km). St. Augustine Beach Pier recently reported a sustained wind of 54 mph (87 km/h) and a gust to 62 mph (100 km/h). The minimum central pressure estimated from Air Force Hurricane Hunter aircraft observations is 986 mb (29.12 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Ian can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC and on the web at hurricanes.gov/text/MIATCDAT4.shtml. STORM SURGE: The combination of 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... * Edisto Beach to Murrells Inlet...4-7 ft * Flagler/Volusia County Line to Edisto Beach...4-6 ft * Murrells Inlet to Cape Fear...3-5 ft * Cape Fear River...2-4 ft * St. Johns River...2-4 ft * East of Cape Fear to Duck, including Pamlico and Neuse Rivers...2-4 ft * Patrick Air Force Base to Flagler/Volusia County Line...1-3 ft * Albemarle Sound...1-2 ft The deepest water will occur along the immediate coast near and to the right of the center, where the surge will be accompanied by large waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, 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. WIND: Hurricane conditions are expected to begin in the Hurricane Warning area starting early Friday, with tropical storm conditions beginning overnight. Tropical storm conditions are now occurring in parts of the warning area on the east coast of Florida and should spread northward along the Georgia and North Carolina coasts tonight through Friday. Hurricane conditions are possible within the Hurricane Watch area in northeastern Florida and Georgia today into Friday, and in the watch area in North Carolina on Friday morning. RAINFALL: Ian is expected to produce the following storm total rainfall amounts: * Coastal Georgia: 1 to 3 inches with locally higher amounts. * Northeast South Carolina: 4 to 8 inches, with local maxima of 12 inches * Upstate and central South Carolina, North Carolina, and southern Virginia: 3 to 6 inches with local maxima of 8 inches across northwest North Carolina and southwest Virginia. Major-to-record river flooding will continue across central Florida through next week. Considerable flash and urban flooding, and minor river flooding is possible across South Carolina through Friday. Locally considerable flash, urban, and small stream flooding is possible this weekend across portions of northwest North Carolina and southwest Virginia. Limited flooding is possible across portions of the southern Mid-Atlantic. TORNADOES: A few tornadoes will be possible Friday across the coastal Carolinas and southeast Virginia. SURF: Swells generated by Ian are affecting the northern coast of Cuba, the northeastern coast of the Yucatan peninsula, Florida and Georgia. Swells will increase along the coasts of South Carolina and North Carolina. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM EDT. $$ |
