000 WTNT32 KNHC 081145 TCPAT2 BULLETIN HURRICANE KATIA INTERMEDIATE ADVISORY NUMBER 41A NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 800 AM AST THU SEP 08 2011 ...CENTER OF KATIA PASSING BETWEEN BERMUDA AND THE EAST COAST OF THE UNITED STATES... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...32.8N 70.2W ABOUT 325 MI...520 KM W OF BERMUDA MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...N OR 360 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...970 MB...28.64 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 800 AM AST...1200 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED NEAR LATITUDE 32.8 NORTH...LONGITUDE 70.2 WEST. KATIA IS MOVING TOWARD THE NORTH NEAR 14 MPH...22 KM/H. A TURN TOWARD THE NORTHEAST WITH AN INCREASE IN FORWARD SPEED IS EXPECTED TONIGHT. ON THE FORECAST TRACK...THE CENTER OF KATIA WILL CONTINUE TO MOVE BETWEEN THE EAST COAST OF THE UNITED STATES AND BERMUDA THROUGH TODAY. MAXIMUM SUSTAINED WINDS ARE NEAR 90 MPH...150 KM/H...WITH HIGHER GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT COUPLE OF DAYS. 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 970 MB...28.64 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...LARGE SWELLS GENERATED BY KATIA WILL CONTINUE TO AFFECT MOST OF THE EAST COAST OF THE UNITED STATES...BERMUDA...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT COUPLE OF 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 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...1100 AM AST. $$ FORECASTER BROWN