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#114022 (Received by flhurricane at: 10:46 AM 02.Oct.2006) TCPAT4 BULLETIN TROPICAL STORM ISAAC ADVISORY NUMBER 20 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL092006 1100 AM AST MON OCT 02 2006 ...ISAAC WEAKENS...STILL HEADING FOR SOUTHEASTERN NEWFOUNDLAND... A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE AVALON PENINSULA IN SOUTHEASTERN NEWFOUNDLAND. A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE BURIN PENINSULA AND BONAVISTA PENINSULA IN SOUTHEASTERN NEWFOUNDLAND. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1100 AM AST...1500Z...THE CENTER OF TROPICAL STORM ISAAC WAS LOCATED NEAR LATITUDE 44.3 NORTH...LONGITUDE 55.0 WEST OR ABOUT 190 MILES...305 KM...SOUTH-SOUTHWEST OF CAPE RACE NEWFOUNDLAND. ISAAC IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 41 MPH...67 KM/HR... AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS. ON THIS TRACK THE CENTER WILL PASS NEAR OR OVER SOUTHEASTERN NEWFOUNDLAND LATER TODAY. MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/HR...WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST DURING THE NEXT 24 HOURS. ISAAC IS LOSING TROPICAL CHARACTERISTICS AND IS EXPECTED TO BECOME AN EXTRATROPICAL LOW LATER TODAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM MAINLY TO THE EAST OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 994 MB...29.35 INCHES. COASTAL STORM SURGE FLOODING OF 2 TO 3 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED NEAR AND TO THE EAST OF WHERE THE CENTER MAKES LANDFALL. RAINFALL TOTALS OF 2 TO 3 INCHES WILL BE POSSIBLE OVER SOUTHEASTERN NEWFOUNDLAND TODAY. REPEATING THE 1100 AM AST POSITION...44.3 N...55.0 W. MOVEMENT TOWARD...NORTH-NORTHEAST NEAR 41 MPH. MAXIMUM SUSTAINED WINDS...60 MPH. MINIMUM CENTRAL PRESSURE...994 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 200 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500 PM AST. $$ FORECASTER BROWN/PASCH |