000 ABPZ20 KNHC 011732 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 1100 AM PDT SAT SEP 1 2012 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM ILEANA...LOCATED ABOUT 555 MILES WEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. SHOWERS AND THUNDERSTORMS ARE SHOWING SIGNS OF ORGANIZATION IN ASSOCIATION WITH AN AREA OF LOW PRESSURE LOCATED ABOUT 400 MILES SOUTHWEST OF ACAPULCO MEXICO. ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR DEVELOPMENT AND THIS SYSTEM COULD BECOME A TROPICAL DEPRESSION DURING THE NEXT DAY OR TWO AS IT MOVES WEST- NORTHWESTWARD AT AROUND 15 MPH. THIS SYSTEM HAS A HIGH CHANCE...60 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BRENNAN/BLAKE