000 WTNT31 KNHC 131443 TCPAT1 BULLETIN HURRICANE IGOR ADVISORY NUMBER 22 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 1100 AM AST MON SEP 13 2010 ...CATEGORY FOUR HURRICANE IGOR MOVING WESTWARD ACROSS THE TROPICAL ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...17.5N 49.7W ABOUT 880 MI...1420 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...150 MPH...240 KM/HR PRESENT MOVEMENT...W OR 265 DEGREES AT 10 MPH...17 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 1100 AM AST...1500 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED NEAR LATITUDE 17.5 NORTH...LONGITUDE 49.7 WEST. IGOR IS MOVING TOWARD THE WEST NEAR 10 MPH...17 KM/HR. A TURN TOWARD THE WEST-NORTHWEST IS EXPECTED 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 FLUCTUATIONS IN INTENSITY ARE LIKELY DURING THE NEXT 48 HOURS...AND IGOR IS EXPECTED TO REMAIN A POWERFUL HURRICANE FOR THE NEXT COUPLE OF DAYS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 933 MB...27.55 INCHES. HAZARDS AFFECTING LAND ---------------------- NONE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 PM AST. $$ FORECASTER BRENNAN