000 ABPZ20 KNHC 201733 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 1100 AM PDT THU SEP 20 2012 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. SHOWER AND THUNDERSTORM ACTIVITY HAS BECOME A LITTLE MORE CONCENTRATED IN ASSOCIATION WITH A BROAD AREA OF LOW PRESSURE LOCATED A FEW HUNDRED MILES SOUTH OF ACAPULCO MEXICO. ENVIRONMENTAL CONDITIONS APPEAR TO BE CONDUCIVE FOR GRADUAL DEVELOPMENT OF THIS DISTURBANCE OVER THE NEXT FEW DAYS. THIS SYSTEM HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES GENERALLY WESTWARD AT 5 TO 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BRENNAN