000 WTNT32 KNHC 170836 TCPAT2 BULLETIN TROPICAL STORM BERTHA ADVISORY NUMBER 57 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL022008 500 AM AST THU JUL 17 2008 ...BERTHA WEAKENS BUT CONTINUES MOVING SOUTHEASTWARD... AT 500 AM AST...0900Z...THE CENTER OF TROPICAL STORM BERTHA WAS LOCATED NEAR LATITUDE 34.5 NORTH...LONGITUDE 59.2 WEST OR ABOUT 355 MILES...575 KM...EAST-NORTHEAST OF BERMUDA. BERTHA IS MOVING TOWARD THE SOUTHEAST NEAR 10 MPH...17 KM/HR. A TURN TOWARD THE EAST IS EXPECTED TODAY...AND A NORTHEASTWARD TURN WITH SOME INCREASE IN FORWARD SPEED IS FORECAST TONIGHT OR EARLY FRIDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/HR...WITH HIGHER GUSTS. SLIGHT WEAKENING IS FORECAST TODAY...FOLLOWED BY LITTLE CHANGE IN STRENGTH TONIGHT AND FRIDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 160 MILES...260 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 997 MB...29.44 INCHES. REPEATING THE 500 AM AST POSITION...34.5 N...59.2 W. MOVEMENT TOWARD...SOUTHEAST NEAR 10 MPH. MAXIMUM SUSTAINED WINDS...60 MPH. MINIMUM CENTRAL PRESSURE...997 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 AM AST. $$ FORECASTER BROWN