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#211769 (Received by flhurricane at: 4:57 PM 30.Aug.2008) TCPAT2 BULLETIN HURRICANE GUSTAV ADVISORY NUMBER 25 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072008 500 PM EDT SAT AUG 30 2008 ...GUSTAV STILL STRENGTHENING AS IT IMPACTS WESTERN CUBA... AT 500 PM EDT...2100 UTC...A HURRICANE WATCH IS ISSUED FOR THE NORTHERN GULF COAST FROM EAST OF HIGH ISLAND TEXAS EASTWARD TO THE ALABAMA-FLORIDA BORDER...INCLUDING THE CITY OF NEW ORLEANS AND LAKE PONTCHARTRAIN. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. AT 500 PM EDT...A TROPICAL STORM WATCH IS ISSUED ALONG THE PANHANDLE COAST OF FLORIDA FROM EAST OF THE ALABAMA-FLORIDA BORDER EASTWARD TO THE OCHLOCKONEE RIVER. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. A HURRICANE WARNING REMAINS IN EFFECT FOR THE CUBAN PROVINCES OF PINAR DEL RIO...LA HABANA...CIUDAD DE LA HABANA...ISLA DE JUVENTUD...MATANZAS...AND CIENFUEGOS. PREPARATIONS TO PROTECT LIFE AND PROPERTY IN THE HURRICANE WARNING AREA SHOULD HAVE ALREADY BEEN COMPLETED. A HURRICANE WATCH REMAINS IN EFFECT FOR THE CENTRAL CUBAN PROVINCE OF VILLA CLARA. A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL CUBAN PROVINCES OF VILLA CLARA...SANCTI SPIRITUS...CIEGO DE AVILA...AND CAMAGUEY...AND FOR THE LOWER FLORIDA KEYS WEST OF THE SEVEN MILE BRIDGE TO DRY TORTUGAS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 500 PM EDT...2100Z...THE EYE OF HURRICANE GUSTAV WAS LOCATED NEAR LATITUDE 22.1 NORTH...LONGITUDE 82.9 WEST OR ABOUT 130 MILES... 210 KM...EAST-NORTHEAST OF THE WESTERN TIP OF CUBA AND ABOUT 80 MILES...135 KM...SOUTH-SOUTHWEST OF HAVANA CUBA. DO NOT VENTURE OUTSIDE DURING THE PASSAGE OF THE EYE...SINCE WINDS WILL SOON RAPIDLY INCREASE AS EYEWALL AGAIN PASSES. THE EYE IS ALSO CURRENTLY CENTERED ABOUT 620 MILES...1000 KM...SOUTHEAST OF THE NORTH-CENTRAL GULF OF MEXICO COAST. GUSTAV IS MOVING TOWARD THE NORTHWEST NEAR 15 MPH...24 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT COUPLE OF DAYS. ON THIS TRACK...THE CENTER OF GUSTAV WILL CROSS WESTERN CUBA TONIGHT...THEN EMERGE OVER THE SOUTHERN GULF OF MEXICO EARLY ON SUNDAY...AND REACH THE NORTHERN GULF ON MONDAY. DATA FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 150 MPH...240 KM/HR...WITH HIGHER GUSTS. GUSTAV IS AN EXTREMELY DANGEROUS CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE SCALE. SOME FLUCTUATIONS WITH AN OVERALL SLIGHT STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS...AND GUSTAV COULD REACH CATEGORY FIVE INTENSITY DURING THIS PERIOD. GUSTAV IS FORECAST TO REMAIN A MAJOR HURRICANE THROUGH LANDFALL ALONG THE NORTHERN GULF COAST. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY THE RECONNAISSANCE AIRCRAFT WAS 942 MB...27.82 INCHES. COASTAL STORM SURGE FLOODING OF 18 TO 23 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...IS POSSIBLE NEAR WHERE THE CENTER OF GUSTAV CROSSES WESTERN CUBA...INCLUDING THE ISLE OF YOUTH. STORM SURGE OF 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS IS POSSIBLE IN THE DRY TORTUGAS AS GUSTAV PASSES TO ITS WEST. GUSTAV IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 6 TO 12 INCHES ACROSS CENTRAL AND WESTERN CUBA...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 20 INCHES POSSIBLE. THESE RAINS WILL LIKELY PRODUCE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE OVER FLORIDA KEYS AND EXTREME SOUTHERN FLORIDA. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE OVER THE CAYMAN ISLANDS. ISOLATED TORNADOES ARE POSSIBLE TONIGHT OVER THE FLORIDA KEYS AND THE SOUTHERN FLORIDA PENINSULA. REPEATING THE 500 PM EDT POSITION...22.1 N...82.9 W. MOVEMENT TOWARD...NORTHWEST NEAR 15 MPH. MAXIMUM SUSTAINED WINDS...150 MPH. MINIMUM CENTRAL PRESSURE...942 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 800 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 1100 PM EDT. $$ FORECASTER KNABB |