000 WTNT32 KNHC 081737 TCPAT2 BULLETIN HURRICANE KATIA INTERMEDIATE ADVISORY NUMBER 42A NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 200 PM AST THU SEP 08 2011 ...KATIA WEAKENS SLIGHTLY... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...34.2N 70.0W ABOUT 330 MI...535 KM WNW OF BERMUDA MAXIMUM SUSTAINED WINDS...85 MPH...135 KM/H PRESENT MOVEMENT...N OR 5 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...973 MB...28.73 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 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 34.2 NORTH...LONGITUDE 70.0 WEST. KATIA IS MOVING TOWARD THE NORTH NEAR 16 MPH...26 KM/H. KATIA IS EXPECTED TO TURN TOWARD THE NORTHEAST OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 85 MPH...135 KM/H...WITH HIGHER GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME ADDITIONAL SLOW WEAKENING IS FORECAST DURING THE NEXT 48 HOURS AS KATIA MOVES OVER COOLER WATERS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 90 MILES...150 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...370 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 973 MB...28.73 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...LARGE SWELLS GENERATED BY KATIA WILL CONTINUE TO AFFECT MOST OF THE EAST COAST OF THE UNITED STATES AND BERMUDA. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. SWELLS ON THE EAST-FACING BEACHES OF THE BAHAMAS ARE SUBSIDING. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION. WIND...TROPICAL-STORM-FORCE WINDS...ESPECIALLY IN GUSTS...ARE STILL POSSIBLE IN BERMUDA TODAY. 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 HOGSETT/FRANKLIN