057 WTNT32 KNHC 050256 TCPAT2 BULLETIN Tropical Storm Gordon Advisory Number 11 NWS National Hurricane Center Miami FL AL072018 1000 PM CDT Tue Sep 04 2018 ...CENTER OF GORDON MAKING LANDFALL JUST WEST OF THE ALABAMA-MISSISSIPPI BORDER... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...30.3N 88.4W ABOUT 30 MI...50 KM ESE OF BILOXI MISSISSIPPI ABOUT 35 MI...55 KM SSW OF MOBILE ALABAMA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: All warnings and watches west of the mouth of the Pearl River have been discontinued. The Storm Surge Warning west of Biloxi has also been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Biloxi Mississippi to Dauphin Island A Storm Surge Watch is in effect for... * East of Dauphin Island to Navarre A Hurricane Warning is in effect for... * Mouth of the Pearl River to the Alabama-Florida Border A Tropical Storm Warning is in effect for... * Alabama-Florida Border to Okaloosa-Walton County Line 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. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning areas. 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 1000 PM CDT (0300 UTC), the center of Tropical Storm Gordon was located near latitude 30.3 North, longitude 88.4 West. Gordon is moving toward the northwest near 14 mph (22 km/h). A northwestward motion with some decrease in forward speed is expected over the next couple of days. On the forecast track, the center of Gordon will move inland across the lower Mississippi Valley through Wednesday. A turn toward the north-northwest and north is forecast to occur on Friday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Rapid weakening is forecast after Gordon moves inland, and Gordon is forecast to become a tropical depression on Wednesday. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. A NOAA Coastal Marine Observing site on Dauphin Island, Alabama has measured a sustained wind of 57 mph (91 km/h) with a gust to 72 mph (117 km/h). A wind gust of 61 mph (98 km/h) was recently observed at the Pensacola Naval Air Station. The latest minimum central pressure estimated from NOAA Hurricane Hunter aircraft data is 997 mb (29.44 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 could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Mouth of the Mississippi River to Biloxi...1 to 3 ft. Biloxi to the Alabama/Florida Border including Mobile Bay...2 to 4 ft. Alabama/Florida Border to Navarre, Florida...1 to 3 ft. The deepest water will occur along the immediate coast near and to the east of the landfall location, 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. RAINFALL: Gordon is expected to produce total rain accumulations of 4 to 8 inches over the western Florida Panhandle, southwest Alabama, southern and central Mississippi, northeastern Louisiana, and southern Arkansas, with isolated maximum amounts of 12 inches through late Thursday. This rainfall will cause flash flooding across portions of these areas. WIND: Tropical storm and hurricane conditions will continue to spread onshore during the next several hours within portions of the warning area. TORNADOES: A couple of tornadoes are possible tonight near the coasts of Alabama and the western Florida Panhandle. NEXT ADVISORY ------------- Next intermediate advisory at 100 AM CDT. Next complete advisory at 400 AM CDT. $$ Forecaster Brown