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#113928 (Received by flhurricane at: 4:49 PM 01.Oct.2006) TCPAT4 BULLETIN HURRICANE ISAAC ADVISORY NUMBER 17 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL092006 500 PM AST SUN OCT 01 2006 ...ISAAC MOVING TOWARD NEWFOUNDLAND... A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE AVALON PENINSULA OF NEWFOUNDLAND...WHICH INCLUDES THE CITIES OF CAPE RACE AND ST. JOHNS. 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 AST...2100Z...THE CENTER OF HURRICANE ISAAC WAS LOCATED NEAR LATITUDE 36.3 NORTH...LONGITUDE 60.0 WEST OR ABOUT 800 MILES... 1290 KM...SOUTH-SOUTHWEST OF CAPE RACE NEWFOUNDLAND. ISAAC IS MOVING TOWARD THE NORTH NEAR 21 MPH...33 KM/HR. A TURN TOWARD THE NORTH-NORTHEAST WITH AN INCREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. ISAAC IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON SCALE. ONLY SLIGHT WEAKENING IS FORECAST DURING THE NEXT 24 HOURS. ISAAC IS EXPECTED TO BECOME EXTRATROPICAL AS IT NEARS NEWFOUNDLAND. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 145 MILES...230 KM...MAINLY TO THE EAST OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 985 MB...29.09 INCHES. REPEATING THE 500 PM AST POSITION...36.3 N...60.0 W. MOVEMENT TOWARD...NORTH NEAR 21 MPH. MAXIMUM SUSTAINED WINDS...80 MPH. MINIMUM CENTRAL PRESSURE...985 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 800 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 1100 PM AST. $$ FORECASTER BROWN/FRANKLIN |