000 WTNT34 KNHC 190241 TCPAT4 BULLETIN HURRICANE DEAN ADVISORY NUMBER 24 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL042007 1100 PM AST SAT AUG 18 2007 ...CENTER OF DEAN PASSING JUST SOUTH OF HISPANIOLA...HEADING TOWARD JAMAICA... AT 11 PM AST...0300 UTC...THE GOVERNMENT OF THE CAYMAN ISLANDS HAS ISSUED A HURRICANE WARNING FOR THE CAYMAN ISLANDS. A HURRICANE WARNING REMAINS IN EFFECT FOR THE SOUTH COAST OF THE DOMINICAN REPUBLIC FROM BARAHONA WESTWARD TO THE HAITI-DOMINICAN REPUBLIC BORDER...AND FOR THE SOUTHWESTERN PENINSULA OF HAITI FROM THE HAITI-DOMINICAN REPUBLIC BORDER TO PORT-AU-PRINCE. A HURRICANE WARNING IS ALSO IN EFFECT FOR JAMAICA. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING IS STILL IN EFFECT ALONG THE SOUTH COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO WESTWARD TO BARAHONA...AND FOR COAST OF HAITI NORTH OF PORT-AU-PRINCE TO THE NORTHERN HAITI-DOMINICAN REPUBLIC BORDER. A TROPICAL STORM WARNING IS ALSO IN EFFECT FOR PORTIONS OF EASTERN CUBA...FROM THE PROVINCE OF CAMAGUEY EASTWARD TO THE PROVINCE OF GUANTANAMO. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. AT 11 PM AST...THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR PORTIONS OF CENTRAL CUBA...FOR THE PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...CIENFUEGOS...MATANZAS...AND ISLA DE LA JUVENTUD. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. INTERESTS ELSEWHERE IN THE WESTERN CARIBBEAN...INCLUDING WESTERN CUBA AND THE YUCATAN PENINSULA...SHOULD CLOSELY MONITOR THE PROGRESS OF DEAN. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1100 PM AST...0300Z...THE CENTER OF HURRICANE DEAN WAS LOCATED NEAR LATITUDE 16.2 NORTH...LONGITUDE 71.7 WEST OR ABOUT 360 MILES... 580 KM...EAST-SOUTHEAST OF KINGSTON JAMAICA AND ABOUT 170 MILES... 275 KM...SOUTH-SOUTHEAST OF PORT AU PRINCE HAITI. DEAN IS MOVING TOWARD THE WEST NEAR 17 MPH...28 KM/HR...AND A WESTWARD OR WEST-NORTHWESTWARD MOTION IS EXPECTED DURING THE NEXT 24 HOURS. ON THIS TRACK...THE CORE OF THE HURRICANE WILL PASS JUST SOUTH OF THE SOUTHERN COAST OF HAITI OVERNIGHT AND WILL BE NEAR JAMAICA SUNDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 145 MPH...230 KM/HR...WITH HIGHER GUSTS. DEAN IS AN EXTREMELY DANGEROUS CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE SCALE. SOME FLUCTUATIONS IN INTENSITY ARE POSSIBLE DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205 MILES...335 KM. THE MINIMUM CENTRAL PRESSURE JUST REPORTED BY AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT WAS 918 MB...27.11 INCHES. STORM TOTAL RAINFALL AMOUNTS OF 5 TO 10 INCHES CAN BE EXPECTED OVER JAMAICA...WITH MAXIMUM AMOUNTS OF UP TO 20 INCHES. AMOUNTS OF 4 TO 6 INCHES ARE POSSIBLE OVER SOUTHERN HISPANIOLA WITH MAXIMUM TOTALS OF 10 INCHES. THE REMAINDER OF HISPANIOLA AND EASTERN CUBA COULD RECEIVE 2 TO 4 INCHES OF RAIN...WITH MAXIMUM AMOUNTS UP TO 7 INCHES. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES. REPEATING THE 1100 PM AST POSITION...16.2 N...71.7 W. MOVEMENT TOWARD...WEST NEAR 17 MPH. MAXIMUM SUSTAINED WINDS...145 MPH. MINIMUM CENTRAL PRESSURE...918 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 200 AM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500 AM AST. $$ FORECASTER KNABB/ROBERTS