000 WTNT31 KNHC 230851 TCPAT1 BULLETIN TROPICAL STORM OPHELIA ADVISORY NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162011 500 AM AST FRI SEP 23 2011 ...OPHELIA CONTINUES TO WEAKEN... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...14.5N 51.0W ABOUT 740 MI...1190 KM ESE OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL STORM OPHELIA WAS LOCATED NEAR LATITUDE 14.5 NORTH...LONGITUDE 51.0 WEST. OPHELIA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 13 MPH...20 KM/H...AND A MOTION BETWEEN WEST-NORTHWEST AND NORTHWEST IS EXPECTED FOR THE NEXT COUPLE OF DAYS. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 45 MPH...75 KM/H...WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST DURING THE NEXT 48 HOURS...AND OPHELIA COULD BECOME A TROPICAL DEPRESSION OVER THE WEEKEND. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 260 MILES...415 KM...MOSTLY TO THE NORTH OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1004 MB...29.65 INCHES. HAZARDS AFFECTING LAND ---------------------- NONE NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER BLAKE