000 ABPZ30 KNHC 011451 TWSEP MONTHLY TROPICAL WEATHER SUMMARY NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM PDT THU NOV 1 2007 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. ONLY ONE TROPICAL STORM...KIKO...FORMED IN THE EASTERN NORTH PACIFIC DURING THE MONTH OF OCTOBER. THIS IS BELOW THE CLIMATOLOGICAL MEAN OF TWO TROPICAL STORMS DEVELOPING DURING THE MONTH OF OCTOBER...WITH ONE BECOMING A HURRICANE. SO FAR...2007 IS THE SECOND QUIETEST SEASON (BASED ON RELIABLE RECORDS SINCE 1971) BEHIND 1977 IN TERMS OF ACE...ACCUMULATED CYCLONE ENERGY...WHICH IS A MEASURE OF THE STRENGTH AND DURATION OF NAMED STORMS AND HURRICANES. JULIETTE...A SEPTEMBER TROPICAL STORM...DISSIPATED EARLY IN OCTOBER. JULIETTE FORMED FROM A TROPICAL WAVE THAT MOVED OFF THE COAST OF WEST AFRICA ON 12 SEPTEMBER AND ENTERED THE EASTERN PACIFIC OCEAN ON 23 SEPTEMBER. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE WAVE GRADUALLY BECAME BETTER ORGANIZED AND AN AREA OF LOW PRESSURE FORMED ON 27 SEPTEMBER APPROXIMATELY 300 N MI SOUTHWEST OF ACAPULCO MEXICO. CONVECTION CONTINUED TO BECOME BETTER ORGANIZED AND A DEPRESSION IS ESTIMATED TO HAVE FORMED AT 0000 UTC 29 SEPTEMBER APPROXIMATELY 365 N MI SOUTHWEST OF MANZANILLO MEXICO. THE DEPRESSION INTENSIFIED TO A TROPICAL STORM...THE TENTH OF THE 2007 EASTERN PACIFIC SEASON...LATER THAT DAY AND REACHED ITS PEAK INTENSITY OF 45 KT AT 1200 UTC 30 SEPTEMBER. THEREAFTER...STRONG VERTICAL SHEAR...COOLER SSTS...AND A MORE STABLE AIR MASS RESULTED IN WEAKENING AND JULIETTE QUICKLY DEGENERATED INTO A REMNANT LOW AT 1200 UTC 2 OCTOBER. KIKO ORIGINATED FROM THE SAME TROPICAL WAVE THAT SPAWNED TROPICAL STORM MELISSA OVER THE EASTERN TROPICAL ATLANTIC OCEAN. THE WAVE CONTINUED WESTWARD AND ENTERED THE EASTERN PACIFIC ON 8 OCTOBER. AN AREA OF LOW PRESSURE...ACCOMPANIED BY SHOWERS AND THUNDERSTORMS...DEVELOPED ALONG THE WAVE AXIS AND THE SYSTEM EVENTUALLY ACQUIRED ENOUGH ORGANIZATION TO BE CLASSIFIED AS A TROPICAL DEPRESSION EARLY ON 15 OCTOBER...WHILE CENTERED ABOUT 350 N MI SOUTHWEST OF MANZANILLO MEXICO. THE DEPRESSION DRIFTED SOUTHWARD FOR A LITTLE OVER A DAY. IT BRIEFLY BECAME A TROPICAL STORM ON OCTOBER 16...BUT WEAKENED BACK TO A DEPRESSION SHORTLY THEREAFTER. THE CYCLONE MOVED EASTWARD AND EAST- NORTHEASTWARD WITH A SLOWLY INCREASING FORWARD SPEED. KIKO BECAME A TROPICAL STORM...ONCE AGAIN...EARLY ON 17 OCTOBER WHILE CENTERED ABOUT 335 N MI SOUTH-SOUTHWEST OF MANZANILLO. FOR THE NEXT DAY OR TWO...KIKO MOVED TOWARD THE EAST-NORTHEAST AS A MINIMAL STORM...TOWARD THE SOUTHWESTERN COAST OF MEXICO. BY EARLY ON 19 OCTOBER...KIKO TURNED TOWARD THE NORTHWEST AS A RIDGE DEVELOPED OVER MEXICO. DURING THE NEXT COUPLE OF DAYS...KIKO MOVED SLOWLY TOWARD THE NORTHWEST AND GRADUALLY STRENGTHENED...AND REACHED ITS MAXIMUM INTENSITY OF 60 KT AROUND ON 20 OCTOBER WHILE CENTERED ABOUT 150 N MI WEST-SOUTHWEST OF MANZANILLO. KIKO GRADUALLY WEAKENED DUE TO BOTH INCREASING SOUTHERLY SHEAR AND A MORE STABLE ENVIRONMENT AND BECAME A TROPICAL DEPRESSION ON 22 OCTOBER. THE DEPRESSION MOVED WESTWARD AND DEGENERATED INTO A REMNANT LOW EARLY ON 24 OCTOBER. THE REMNANT LOW CONTINUED TO MOVE GENERALLY WESTWARD FOR THE NEXT COUPLE OF DAYS WITHIN THE LOW-LEVEL STEERING FLOW THEN TURNED NORTHWARD BEFORE DISSIPATING EARLY ON 27 OCTOBER. SUMMARY TABLE NAME DATES MAX WIND (KT) DEATHS ------------------------------------------------------- TS JULIETTE 29 SEP-2 OCT 45 TS KIKO 15-23 OCT 60 ------------------------------------------------------- NOTE...DATES BASED ON COORDINATED UNIVERSAL TIME (UTC) * UNKNOWN AT THIS TIME $$ FORECASTER MAINELLI/RHOME