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| #8707 (Received by flhurricane at: 4:56 AM 16.Sep.2004) TCPAT4 BULLETIN HURRICANE IVAN ADVISORY NUMBER 56 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 4 AM CDT THU SEP 16 2004 ...IVAN SPREADING HURRICANE FORCE WINDS INLAND AFTER MAKING LANDFALL NEAR GULF SHORES ALABAMA... AT 4 AM CDT...0900Z...THE HURRICANE WARNING FOR THE CITY OF NEW ORLEANS AND LAKE PONTCHARTRAIN...AND ALL WATCHES AND WARNINGS FROM WEST OF GRAND ISLE TO MORGAN CITY...HAVE BEEN DISCONTINUED. ALSO...THE HURRICANE WARNING FROM THE MOUTH OF THE PEARL RIVER TO GRAND ISLE HAS BEEN DOWNGRADED TO A TROPICAL STORM WARNING. A HURRICANE WARNING REMAINS IN EFFECT FROM THE MOUTH OF THE PEARL RIVER TO APALACHICOLA FLORIDA. A TROPICAL STORM WARNING REMAINS IN EFFECT FROM EAST OF APALACHICOLA TO YANKEETOWN FLORIDA AND FOR THE MOUTH OF THE PEARL RIVER TO GRAND ISLE. AT 4 AM CDT...0900Z...THE EYE OF HURRICANE IVAN WAS LOCATED INLAND NEAR LATITUDE 30.9 NORTH...LONGITUDE 87.7 WEST OR ABOUT 40 MILES NORTHWEST OF PENSACOLA FLORIDA. IVAN IS MOVING SLIGHTLY EAST OF DUE NORTH NEAR 14 MPH AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 115 MPH WITH HIGHER GUSTS. A GRADUAL WEAKENING SHOULD CONTINUE AS THE HURRICANE MOVES INLAND. OCCUPANTS OF HIGH-RISE BUILDINGS WITHIN THE HURRICANE WARNING AREA CAN EXPECT HIGHER WINDS THAN THOSE EXPERIENCED AT THE SURFACE...ABOUT ONE SAFFIR-SIMPSON CATEGORY HIGHER AT THE TOP OF A 30-STORY BUILDING. HURRICANE FORCE WINDS COULD SPREAD INLAND UP TO ABOUT 150 MILES NEAR THE PATH OF THE CENTER. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 105 MILES FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES. THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY A RECONNAISSANCE PLANE WAS 947 MB...27.96 INCHES. COASTAL STORM SURGE FLOODING OF 10 TO 16 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...ARE STILL OCCURRING NEAR TO THE EAST AND SOUTH OF WHERE THE CENTER MADE LANDFALL. DANGEROUS SURF CONDITIONS...INCLUDING RIP CURRENTS...ARE LIKELY ELSEWHERE ALONG THE FLORIDA GULF COAST. RAINFALL ACCUMULATIONS OF 10 TO 15 INCHES...WITH ISOLATED HIGHER AMOUNTS...CAN BE EXPECTED IN ASSOCIATION WITH IVAN. TORNADOES ARE POSSIBLE OVER THE NEXT 24 HOURS IN SOUTHERN ALABAMA... THE FLORIDA PANHANDLE AND BIG BEND AREA...AND SOUTHWESTERN GEORGIA. REPEATING THE 4 AM CDT POSITION...30.9 N... 87.7 W. MOVEMENT TOWARD...NORTH NEAR 14 MPH. MAXIMUM SUSTAINED WINDS...115 MPH. MINIMUM CENTRAL PRESSURE... 947 MB. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 7 AM CDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 10 AM CDT. FORECASTER AVILA |
