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| #375724 (Received by flhurricane at: 4:35 AM 13.Sep.2010) TCPAT1 BULLETIN HURRICANE IGOR ADVISORY NUMBER 21 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 500 AM AST MON SEP 13 2010 ...CATEGORY FOUR IGOR CONTINUES WESTWARD... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.7N 48.8W ABOUT 940 MI...1515 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...150 MPH...240 KM/HR PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/HR MINIMUM CENTRAL PRESSURE...935 MB...27.61 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 HURRICANE IGOR WAS LOCATED NEAR LATITUDE 17.7 NORTH...LONGITUDE 48.8 WEST. IGOR IS MOVING TOWARD THE WEST NEAR 13 MPH...20 KM/HR. A TURN TOWARD THE WEST-NORTHWEST WITH SOME DECREASE IN FORWARD SPEED IS EXPECTED TO OCCUR TONIGHT OR TUESDAY. MAXIMUM SUSTAINED WINDS REMAIN NEAR 150 MPH...240 KM/HR...WITH HIGHER GUSTS. IGOR IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME FLUCTUATION IN INTENSITY IS LIKELY DURING THE NEXT 48 HOURS...AND IGOR COULD BECOME A CATEGORY FIVE HURRICANE TODAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 40 MILES...65 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 935 MB...27.61 INCHES. HAZARDS AFFECTING LAND ---------------------- NONE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER CANGIALOSI |
