000 ABPZ20 KNHC 191143 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT SUN SEP 19 2010 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. A BROAD LOW PRESSURE SYSTEM CENTERED ABOUT 150 MILES SOUTH OF MANZANILLO MEXICO IS PRODUCING A LARGE AREA OF SHOWERS AND THUNDERSTORMS THAT EXTENDS FROM THE SOUTHWEST COAST OF MEXICO SOUTHWESTWARD FOR SEVERAL HUNDRED MILES. UPPER-LEVEL WINDS COULD DECREASE OVER THE NEXT DAY OR TWO AS THE SYSTEM MOVES WEST- NORTHWESTWARD AT ABOUT 10 MPH...AND THERE IS A MEDIUM CHANCE...40 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BERG