ZCZC MIATCPEP1 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE JOHN ADVISORY NUMBER 9 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006 800 AM PDT WED AUG 30 2006 ...HURRICANE JOHN NOW A CATEGORY FOUR HURRICANE...NEW WATCHES AND WARNINGS ISSUED... AT 8 AM PDT...1500 UTC...THE GOVERNMENT OF MEXICO HAS EXTENDED THE HURRICANE WARNING NORTHWARD TO CABO CORRIENTES. A HURRICANE WARNING IS NOW IN EFFECT FROM LAZARO CARDENAS WESTWARD TO CABO CORRIENTES. AT 8 AM PDT...THE GOVERNMENT OF MEXICO HAS ISSUED A HURRICANE WATCH FOR THE ISLAS MARIAS. AT 8 AM PDT...THE GOVERNMENT OF MEXICO HAS ISSUED A TROPICAL STORM WATCH FROM CABO CORRIENTES TO EL ROBLITO. AT 8 AM PDT...THE GOVERNMENT OF MEXICO HAS DISCONTINUED THE TROPICAL WARNING EAST OF ACAPULCO. A TROPICAL STORM WARNING IS NOW IN EFFECT FROM ACAPULCO TO LAZARO CARDENAS. A HURRICANE WATCH REMAINS IN EFFECT FROM TECPAN DE GALEANA TO LAZARO CARDENAS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 800 AM PDT...1500Z...THE CENTER OF HURRICANE JOHN WAS LOCATED NEAR LATITUDE 16.6 NORTH...LONGITUDE 102.3 WEST OR ABOUT 160 MILES ...260 KM...WEST OF ACAPULCO MEXICO AND ABOUT 95 MILES...155 KM... SOUTH OF LAZARO CARDENAS MEXICO. JOHN IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 135 MPH...215 KM/HR...WITH HIGHER GUSTS. JOHN IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME ADDITIONAL STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS. WHILE THE CENTER OF JOHN IS FORECAST TO REMAIN JUST OFFSHORE...HURRICANE FORCE WINDS ARE STILL EXPECTED TO REACH THE COAST WITHIN THE WARNING AREA. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 50 MILES...85 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM. ESTIMATED MINIMUM CENTRAL PRESSURE...BASED ON RECENT RECONNAISSANCE DATA...IS 948 MB...27.99 INCHES. RAINFALL AMOUNTS OF 4 TO 8 INCHES...WITH ISOLATED TOTALS UP TO 12 INCHES...ARE POSSIBLE ALONG THE SOUTHERN COAST OF MEXICO WITHIN THE WARNING AREAS. THESE AMOUNTS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES OVER AREAS OF MOUNTAINOUS TERRAIN. COASTAL STORM SURGE FLOODING OF UP TO 5 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED IN AREAS OF ONSHORE FLOW NEAR THE PATH OF THE CENTER OF THE HURRICANE. REPEATING THE 800 AM PDT POSITION...16.6 N...102.3 W. MOVEMENT TOWARD...NORTHWEST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS...135 MPH. MINIMUM CENTRAL PRESSURE...948 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 AM PDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 200 PM PDT. $$ FORECASTER MAINELLI/FRANKLIN NNNN
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Page last modified: Monday, 11-Sep-2006 11:28:43 UTC