000 ABPZ20 KNHC 192333 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 PM PDT MON SEP 19 2011 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THUNDERSTORM ACTIVITY HAS CONTINUED TO BECOME BETTER ORGANIZED NEAR A LOW PRESSURE SYSTEM CENTERED ABOUT 275 MILES SOUTHEAST OF PUERTO ESCONDIDO MEXICO. CONDITIONS APPEAR FAVORABLE FOR ADDITIONAL DEVELOPMENT OF THIS DISTURBANCE OVER THE NEXT COUPLE OF DAYS AS IT MOVES WEST-NORTHWESTWARD AT 5 TO 10 MPH. THIS SYSTEM HAS A MEDIUM CHANCE...50 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART