000 WTNT32 KNHC 061742 TCPAT2 BULLETIN HURRICANE KATIA INTERMEDIATE ADVISORY NUMBER 34A NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 200 PM AST TUE SEP 06 2011 ...HURRICANE HUNTER PLANE FINDS KATIA A LITTLE WEAKER... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...27.3N 66.4W ABOUT 365 MI...590 KM SSW OF BERMUDA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...963 MB...28.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * BERMUDA A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. FOR ADDITIONAL STORM INFORMATION...PLEASE MONITOR PRODUCTS ISSUED BY THE BERMUDA WEATHER SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 PM AST...1800 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED NEAR LATITUDE 27.3 NORTH...LONGITUDE 66.4 WEST. KATIA IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/H...AND THIS MOTION IS EXPECTED TO CONTINUE THROUGH WEDNESDAY...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST AND NORTH BY THURSDAY. ON THE FORECAST TRACK...THE CORE OF KATIA IS EXPECTED TO MOVE OVER THE WESTERN ATLANTIC BETWEEN BERMUDA AND THE EAST COAST OF THE UNITED STATES. DATA FROM AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT INDICATE THAT THAT MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 115 MPH...185 KM/H...WITH HIGHER GUSTS. KATIA IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. FLUCTUATIONS IN INTENSITY ARE POSSIBLE THROUGH WEDNESDAY...AND WEAKENING IS EXPECTED BY WEDNESDAY NIGHT AND THURSDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 65 MILES...100 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205 MILES...335 KM. MINIMUM CENTRAL PRESSURE RECENTLY MEASURED BY THE HURRICANE HUNTER PLANE IS 963 MB...28.44 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...LARGE SWELLS GENERATED BY KATIA WILL CONTINUE TO AFFECT MOST OF THE EAST COAST OF THE UNITED STATES...BERMUDA...THE GREATER ANTILLES...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT FEW DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION. WIND...TROPICAL-STORM-FORCE WINDS...ESPECIALLY IN GUSTS...ARE POSSIBLE ON BERMUDA THROUGH THURSDAY. RAINFALL...KATIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 1 TO 2 INCHES ACROSS BERMUDA. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 PM AST. $$ FORECASTER BERG/AVILA