000 WTNT34 KNHC 110844 TCPAT4 BULLETIN TROPICAL STORM SEAN ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011 500 AM AST FRI NOV 11 2011 ...SEAN WEAKENS A LITTLE AS TROPICAL STORM CONDITIONS SPREAD OVER BERMUDA... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...32.9N 66.3W ABOUT 95 MI...155 KM WNW OF BERMUDA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 22 MPH...35 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * BERMUDA INTERESTS IN BERMUDA SHOULD MONITOR PRODUCTS ISSUED BY THE BERMUDA WEATHER SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL STORM SEAN WAS LOCATED NEAR LATITUDE 32.9 NORTH...LONGITUDE 66.3 WEST. SEAN IS MOVING TOWARD THE NORTHEAST NEAR 22 MPH...35 KM/H...AND THIS MOTION IS EXPECTED TO CONTINUE WITH AN INCREASE IN FORWARD SPEED TODAY. ON THE FORECAST TRACK...THE CENTER OF SEAN WILL PASS NORTH OF BERMUDA THIS MORNING. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 60 MPH...95 KM/H... WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST BEFORE SEAN IS ABSORBED BY A FRONTAL SYSTEM TONIGHT OR SATURDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM FROM THE CENTER. THE MARINE OPERATIONS CENTER ON BERMUDA RECENTLY REPORTED SUSTAINED WINDS OF 43 MPH...69 KM/H...AND A WIND GUST OF 62 MPH...100 KM/H. ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.21 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ON BERMUDA THIS MORNING. RAINFALL...SEAN IS EXPECTED TO PRODUCE 1 TO 3 INCHES OF RAIN ON BERMUDA. SURF...SWELLS GENERATED BY SEAN ARE AFFECTING PORTIONS OF THE SOUTHEASTERN COAST OF THE UNITED STATES AND BERMUDA...CAUSING LIFE-THREATENING SURF AND RIP CURRENTS. THESE SWELLS SHOULD SUBSIDE DURING THE NEXT DAY OR TWO. PLEASE SEE STATEMENTS FROM YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR MORE DETAILS. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...800 AM AST. NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER BEVEN