000 ABPZ20 KNHC 191758 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 1000 AM PST SAT NOV 19 2011 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. A LOW PRESSURE SYSTEM LOCATED ABOUT 475 MILES SOUTH OF ACAPULCO MEXICO CONTINUES TO PRODUCE SHOWERS AND THUNDERSTORMS...BUT THIS ACTIVITY IS NOT YET CONCENTRATED NEAR THE CENTER OF CIRCULATION. HOWEVER...THE CIRCULATION IS BECOMING BETTER DEFINED...AND ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR THE LOW TO DEVELOP INTO A TROPICAL DEPRESSION OVER 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 10 TO 15 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BERG