000 ABPZ20 KNHC 211140 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT FRI AUG 21 2009 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. SHOWER AND THUNDERSTORM ACTIVITY ASSOCIATED WITH AN AREA OF LOW PRESSURE LOCATED ABOUT 1600 MILES WEST-SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA HAS BECOME MORE CONCENTRATED. THIS SYSTEM HAS THE POTENTIAL TO BECOME A TROPICAL DEPRESSION DURING THE NEXT DAY OR TWO AS IT MOVES WESTWARD AT 10 MPH. THERE IS A MEDIUM CHANCE...30 TO 50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER KIMBERLAIN/AVILA