ZCZC MIATCPEP1 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE JOHN INTERMEDIATE ADVISORY NUMBER 17A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006 1100 AM PDT FRI SEP 01 2006 ...DANGEROUS HURRICANE JOHN NEARING BAJA CALIFORNIA... A HURRICANE WARNING REMAINS IN EFFECT FOR THE SOUTHERN BAJA PENINSULA FROM SAN EVERISTO SOUTHWARD ON THE EAST COAST...AND FROM BAHIA MAGDALENA SOUTHWARD ON THE WEST COAST. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE COMPLETED. A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL BAJA CALIFORNIA PENINSULA FROM PUNTA ABREOJOS SOUTHWARD TO BAHIA MAGDALENA ON THE WEST COAST...AND NORTHWARD FROM SAN EVERISTO TO LORETO ON THE EAST COAST. A HURRICANE WATCH REMAINS IN EFFECT ALONG THE WEST COAST OF THE BAJA PENINSULA FROM BAHIA MAGDALENA TO PUNTA ABREOJOS. A TROPICAL STORM WATCH REMAINS IN EFFECT ALONG THE EAST COAST OF THE BAJA PENINSULA FROM LORETO NORTHWARD TO MULEGE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1100 AM PDT...1800Z...THE CENTER OF HURRICANE JOHN WAS LOCATED NEAR LATITUDE 22.3 NORTH...LONGITUDE 109.0 WEST OR ABOUT 85 MILES... 135 KM...SOUTHEAST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. JOHN HAS RECENTLY BEEN MOVING TOWARD THE NORTH-NORTHWEST NEAR 8 MPH...13 KM/HR... BUT A TURN TOWARD THE NORTHWEST IS EXPECTED WITHIN 24 HOURS. ON THIS TRACK JOHN WILL BE VERY CLOSE TO SOUTHERN BAJA CALIFORNIA LATER TODAY. MAXIMUM SUSTAINED WINDS ARE NEAR 110 MPH...185 KM/HR...WITH HIGHER GUSTS. JOHN IS A STRONG CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON SCALE. LITTLE SIGNIFICANT CHANGE IN STRENGTH IS FORECAST FOR THE NEXT 24 HOURS BUT ONLY A SMALL INCREASE IN WINDS WOULD BRING JOHN BACK TO CATEGORY THREE STATUS BEFORE LANDFALL. JOHN IS A RELATIVELY SMALL TROPICAL CYCLONE. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...40 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM. THE MINIMUM CENTRAL PRESSURE MEASURED BY AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT IS 958 MB...28.29 INCHES. 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. RAINFALL AMOUNTS OF 6 TO 10 INCHES...WITH ISOLATED MAXIMUM STORM TOTALS UP TO 15 INCHES...ARE POSSIBLE ACROSS THE SOUTHERN BAJA PENINSULA. THE WEST COAST OF CENTRAL MEXICO COULD RECEIVE AN ADDITIONAL 3 TO 5 INCHES OF RAIN WITH MAXIMUM STORM TOTALS OF 18 INCHES POSSIBLE. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES OVER AREAS OF MOUNTAINOUS TERRAIN. REPEATING THE 1100 AM PDT POSITION...22.3 N...109.0 W. MOVEMENT TOWARD...NORTH-NORTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS...110 MPH. MINIMUM CENTRAL PRESSURE...958 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 200 PM PDT. $$ FORECASTER BLAKE/AVILA NNNN
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Page last modified: Monday, 11-Sep-2006 11:28:43 UTC