000 WTNT32 KNHC 022050 TCPAT2 BULLETIN HURRICANE KATIA ADVISORY NUMBER 19 NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 500 PM AST FRI SEP 02 2011 ...KATIA MOVING OVER OPEN ATLANTIC OCEAN WITH 75 MPH WINDS... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...18.4N 53.5W ABOUT 630 MI...1015 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 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 KATIA WAS LOCATED NEAR LATITUDE 18.4 NORTH...LONGITUDE 53.5 WEST. KATIA IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND A MOTION TOWARD THE WEST-NORTHWEST OR NORTHWEST AT ABOUT THE SAME RATE OF SPEED IS ANTICIPATED FOR THE NEXT TWO DAYS. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.21 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER ANTILLES BY LATE TODAY. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 PM AST. $$ FORECASTER LANDSEA/STEWART