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| #457355 (Received by flhurricane at: 4:44 AM 07.Sep.2011) TCPAT2 BULLETIN HURRICANE KATIA ADVISORY NUMBER 37 NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011 500 AM AST WED SEP 07 2011 ...KATIA A LITTLE WEAKER...EXPECTED TO PASS BETWEEN BERMUDA AND THE EAST COAST OF THE UNITED STATES TONIGHT AND THURSDAY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...28.7N 67.9W ABOUT 310 MI...500 KM SW OF BERMUDA MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 10 MPH...17 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 A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 24 TO 48 HOURS. FOR ADDITIONAL STORM INFORMATION...PLEASE MONITOR PRODUCTS ISSUED BY THE BERMUDA WEATHER SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 AM AST...0900 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED NEAR LATITUDE 28.7 NORTH...LONGITUDE 67.9 WEST. KATIA IS MOVING TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/H. A TURN TOWARD THE NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD THE NORTH AND THEN THE NORTH-NORTHEAST WITH AN INCREASE IN FORWARD SPEED LATE THURSDAY AND EARLY FRIDAY. ON THE FORECAST TRACK...THE CORE OF KATIA IS EXPECTED TO MOVE BETWEEN THE EAST COAST OF THE UNITED STATES AND BERMUDA TONIGHT AND THURSDAY. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 90 MPH...150 KM/H... WITH HIGHER GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR- SIMPSON WIND SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST TODAY... FOLLOWED BY GRADUAL WEAKENING ON THURSDAY. HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 205 MILES...335 KM. THE 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...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 IN BERMUDA THROUGH THURSDAY. RAINFALL...KATIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 1 TO 2 INCHES ACROSS BERMUDA. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...800 AM AST. NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER KIMBERLAIN/PASCH |
