000 ABPZ20 KNHC 212331 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 PM PDT FRI SEP 21 2012 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. SHOWERS AND THUNDERSTORMS CONTINUE TO ORGANIZE IN ASSOCIATION WITH A LOW PRESSURE SYSTEM LOCATED ABOUT 400 MILES SOUTH-SOUTHWEST OF MANZANILLO MEXICO. THIS LOW COULD DEVELOP INTO A TROPICAL DEPRESSION LATER TODAY OR TONIGHT AS IT MOVES TOWARD THE WEST OR WEST-NORTHWEST AT ABOUT 10 MPH. THIS SYSTEM HAS A HIGH CHANCE...90 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER CANGIALOSI