000 ABPZ20 KNHC 031738 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 1100 AM PDT TUE JUL 3 2012 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. A LARGE LOW PRESSURE SYSTEM LOCATED ABOUT 450 MILES SOUTH-SOUTHWEST OF ACAPULCO MEXICO HAS BECOME BETTER DEFINED THIS AFTERNOON. THUNDERSTORM ACTIVITY HAS CONTINUED TO INCREASE OVER THE PAST SEVERAL HOURS...AND UPPER-LEVEL WINDS ARE EXPECTED TO BECOME MORE CONDUCIVE FOR A TROPICAL DEPRESSION TO FORM DURING THE NEXT DAY OR SO. THIS SYSTEM HAS A HIGH CHANCE...80 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST- NORTHWESTWARD AT ABOUT 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART