000 WTNT32 KNHC 260501 TCPAT2 BULLETIN TROPICAL STORM KATRINA INTERMEDIATE ADVISORY NUMBER 10A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1 AM EDT FRI AUG 26 2005 ...KATRINA WEAKENS SLIGHTLY WHILE PASSING OVER MAINLAND MONROE COUNTY FLORIDA...EXPECTED TO RESTRENGTHEN SOON OVER THE GULF OF MEXICO... ...CHANGES TO WARNINGS ALONG FLORIDA EAST COAST... AT 1 AM EDT...0500Z...THE HURRICANE WARNING FROM BOCA RATON NORTHWARD TO JUPITER INLET HAS BEEN DISCONTINUED...AND THE HURRICANE WARNING HAS BEEN CHANGED TO A TROPICAL STORM WARNING FROM DEERFIELD BEACH FLORIDA TO FLORIDA CITY. A TROPICAL STORM WARNING IS NOW IN EFFECT FOR ALL THE FLORIDA KEYS AND FLORIDA BAY FROM DRY TORTUGAS NORTHWARD...ALONG THE EAST COAST OF FLORIDA FROM FLORIDA CITY NORTHWARD TO DEERFIELD BEACH...AND ALONG THE GULF COAST OF FLORIDA FROM LONGBOAT KEY SOUTH AND EASTWARD TO SOUTH OF FLORIDA CITY. A TROPICAL STORM WATCH REMAINS IN EFFECT FOR PORTIONS OF THE FLORIDA WEST COAST FROM NORTH OF LONGBOAT KEY TO ANCLOTE KEY. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1 AM EDT...0500Z...THE EYE OF HURRICANE KATRINA WAS LOCATED NEAR LATITUDE 25.4 NORTH...LONGITUDE 81.1 WEST OR ABOUT 40 MILES SOUTHEAST OF MARCO ISLAND FLORIDA...AND ABOUT 60 MILES NORTHEAST OF KEY WEST FLORIDA. KATRINA IS MOVING TOWARD THE SOUTHWEST NEAR 8 MPH AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT SEVERAL HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH WITH HIGHER GUSTS. GRADUAL RE-STRENGTHENING IS EXPECTED ONCE KATRINA EMERGES OVER THE GULF OF MEXICO LATER THIS MORNING. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 70 MILES FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 990 MB...29.23 INCHES. STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS... CAN BE EXPECTED ALONG THE WEST COAST OF FLORIDA IN AREAS OF ONSHORE FLOW SOUTH OF VENICE AND IN FLORIDA BAY. STORM SURGE SHOULD GRADUALLY DECREASE THIS MORNING ALONG THE EAST COAST OF FLORIDA. KATRINA IS EXPECTED TO PRODUCE A SIGNIFICANT HEAVY RAINFALL EVENT OVER SOUTH FLORIDA...AND THE FLORIDA KEYS. TOTAL RAINFALL ACCUMULATIONS OF 6 TO 10 INCHES WITH ISOLATED MAXIMUM AMOUNTS OF 15 TO 20 INCHES ARE POSSIBLE. ISOLATED TORNADOES ARE POSSIBLE OVER EASTERN FLORIDA AND THE FLORIDA KEYS. REPEATING THE 1 AM EDT POSITION...25.4 N... 81.1 W. MOVEMENT TOWARD...SOUTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS... 70 MPH. MINIMUM CENTRAL PRESSURE... 990 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 3 AM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 5 AM EDT. FORECASTER KNABB $$