000 WTNT31 KNHC 141443 TCPAT1 BULLETIN HURRICANE IGOR ADVISORY NUMBER 26 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 1100 AM AST TUE SEP 14 2010 ...CATEGORY 4 IGOR MOVING SLOWLY WEST-NORTHWESTWARD... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...18.3N 52.3W ABOUT 710 MI...1140 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...135 MPH...215 KM/HR PRESENT MOVEMENT...WNW OR 290 DEGREES AT 7 MPH...11 KM/HR MINIMUM CENTRAL PRESSURE...945 MB...27.91 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 18.3 NORTH...LONGITUDE 52.3 WEST. IGOR IS MOVING TOWARD THE WEST-NORTHWEST NEAR 7 MPH. THIS GENERAL MOTION IS EXPECTED TO CONTINUE TODAY...FOLLOWED BY A TURN TOWARD THE NORTHWEST ON WEDNESDAY. MAXIMUM SUSTAINED WINDS REMAIN NEAR 135 MPH...215 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 COUPLE OF DAYS...BUT IGOR IS EXPECTED TO REMAIN A DANGEROUS HURRICANE THROUGH THURSDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 50 MILES...85 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 195 MILES...315 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 945 MB...27.91 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...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...500 PM AST. $$ FORECASTER BEVEN