000 WTNT31 KNHC 142058 TCPAT1 BULLETIN HURRICANE IGOR ADVISORY NUMBER 27 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 500 PM AST TUE SEP 14 2010 ...IGOR GETTING STRONGER AS IT MOVES WEST-NORTHWESTWARD... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...18.8N 53.1W ABOUT 655 MI...1055 KM E OF THE NORTHERN LEEWARD ISLANDS ABOUT 1180 MI...1905 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/HR PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/HR MINIMUM CENTRAL PRESSURE...933 MB...27.55 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED NEAR LATITUDE 18.8 NORTH...LONGITUDE 53.1 WEST. IGOR IS MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH...13 KM/HR. THIS GENERAL MOTION IS EXPECTED TO CONTINUE TONIGHT...FOLLOWED BY A GRADUAL TURN TOWARD THE NORTHWEST BY WEDNESDAY AFTERNOON. MAXIMUM SUSTAINED WINDS ARE NEAR 145 MPH...230 KM/HR...WITH HIGHER GUSTS. IGOR IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME FLUCTUATIONS IN INTENSITY ARE POSSIBLE DURING THE NEXT 48 HOURS...BUT IGOR IS EXPECTED TO REMAIN A VERY POWERFUL HURRICANE THROUGH THURSDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205 MILES...335 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 933 MB...27.55 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...LARGE SWELLS GENERATED BY IGOR WILL BEGIN AFFECTING THE LEEWARD ISLANDS TODAY...AND WILL REACH PUERTO RICO AND THE VIRGIN ISLANDS TONIGHT AND WEDNESDAY. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR ADDITIONAL INFORMATION. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 PM AST. $$ FORECASTER STEWART