ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM OPHELIA ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162011 1100 PM AST SAT SEP 24 2011 ...OPHELIA STRUGGLING TO SURVIVE AS A TROPICAL CYCLONE... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...18.3N 58.4W ABOUT 310 MI...495 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 PM AST...0300 UTC...THE CENTER OF TROPICAL STORM OPHELIA WAS ESTIMATED TO BE NEAR LATITUDE 18.3 NORTH...LONGITUDE 58.4 WEST. OPHELIA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 12 MPH...19 KM/H. A WEST-NORTHWESTWARD TO NORTHWESTWARD MOTION WITH A DECREASE IN FORWARD SPEED IS EXPECTED THROUGH LATE MONDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...75 KM/H...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 48 HOURS. HOWEVER...OPHELIA COULD DEGENERATE INTO A TROUGH OF LOW PRESSURE AT ANY TIME IF IT NO LONGER HAS A WELL-DEFINED CENTER. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 260 MILES...415 KM MAINLY TO THE NORTH AND EAST OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB...29.74 INCHES. HAZARDS AFFECTING LAND ---------------------- NONE NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 AM AST. $$ FORECASTER BERG NNNN
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