000 WTNT32 KNHC 032051 TCPAT2 BULLETIN TROPICAL STORM KATIA ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 500 PM AST SAT SEP 03 2011 ...KATIA SPARRING WITH STRONG UPPER-LEVEL WINDS...KNOCKED DOWN TO A TROPICAL STORM FOR THE SECOND TIME... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...19.9N 56.8W ABOUT 430 MI...690 KM ENE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.32 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 TROPICAL STORM KATIA WAS LOCATED NEAR LATITUDE 19.9 NORTH...LONGITUDE 56.8 WEST. KATIA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 10 MPH...17 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH MONDAY. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 70 MPH...110 KM/H...WITH HIGHER GUSTS. FLUCTUATIONS IN INTENSITY ARE POSSIBLE OVER THE NEXT DAY OR SO...AND KATIA COULD RE-STRENGTHEN BACK TO A HURRICANE AT ANY TIME. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 993 MB...29.32 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...SWELLS GENERATED BY KATIA ARE AFFECTING THE LESSER ANTILLES AND COULD BEGIN TO AFFECT BERMUDA BY TONIGHT OR SUNDAY. 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 BERG