000 ABPZ20 KNHC 162331 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 PM PDT WED MAY 16 2012 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM ALETTA...LOCATED ABOUT 830 MILES SOUTH-SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. A BROAD LOW PRESSURE AREA LOCATED ABOUT 500 MILES SOUTH OF ACAPULCO MEXICO HAS CHANGED LITTLE OVER THE PAST SEVERAL HOURS. ENVIRONMENTAL CONDITIONS ARE GENERALLY CONDUCIVE FOR SLOW DEVELOPMENT OF THIS SYSTEM DURING 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 SLOWLY TO THE NORTHWEST. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BLAKE