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ZCZC MIATCPAT4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE GERT ADVISORY NUMBER 47 NATIONAL WEATHER SERVICE MIAMI FL 11 PM AST WED SEP 22 1999 ...GERT EXPECTED TO PASS JUST EAST OF THE AVALON PENINSULA EARLY THURSDAY... STORM AND HURRICANE FORCE WIND WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE MARITIME AREAS SOUTH AND EAST OF NEWFOUNDLAND. SEE STATEMENTS FROM THE CANADIAN HURRICANE CENTER FOR FURTHER INFORMATION. AT 11 PM AST...0300Z...THE CENTER OF HURRICANE GERT WAS LOCATED NEAR LATITUDE 43.7 NORTH...LONGITUDE 55.4 WEST OR ABOUT 300 MILES...480 KM...SOUTH-SOUTHWEST OF ST. JOHNS NEWFOUNDLAND. GERT IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 30 MPH...48 KM/HR ...AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS. ON THIS TRACK...GERT SHOULD PASS JUST EAST OF THE AVALON PENINSULA EARLY THURSDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST ON THURSDAY AS GERT BECOMES EXTRATROPICAL. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 115 MILES...185 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 300 MILES...480 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 965 MB...28.50 INCHES. HEAVY RAINS ARE EXPECTED OVER PORTIONS OF THE AVALON PENINSULA. REPEATING THE 11 PM AST POSITION...43.7 N... 55.4 W. MOVEMENT TOWARD...NORTH-NORTHEAST NEAR 30 MPH. MAXIMUM SUSTAINED WINDS... 80 MPH. MINIMUM CENTRAL PRESSURE... 965 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 AM AST...THURSDAY. GUINEY STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC. NNNN