000 ABPZ20 KNHC 140545 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1100 PM PDT WED AUG 13 2008 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM ISELLE...LOCATED ABOUT 250 MILES WEST-SOUTHWEST OF MANZANILLO MEXICO. AN AREA OF LOW PRESSURE IS LOCATED ABOUT 900 MILES SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA MEXICO. THE LOW HAS A WELL-DEFINED SURFACE CIRCULATION...AND DESPITE RELATIVELY STRONG UPPER-LEVEL WINDS...THE ASSOCIATED THUNDERSTORM ACTIVITY HAS INCREASED DURING THE PAST SEVERAL HOURS. THE UPPER-LEVEL WINDS ARE FORECAST TO BECOME A LITTLE MORE CONDUCIVE FOR DEVELOPMENT DURING THE NEXT COUPLE OF DAYS...AND THIS SYSTEM COULD BECOME A TROPICAL DEPRESSION ON THURSDAY OR FRIDAY. LITTLE OVERALL MOTION OF THIS SYSTEM IS EXPECTED DURING THE NEXT COUPLE OF DAYS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON ISELLE ARE ISSUED UNDER WMO HEADER WTPZ35 AND UNDER AWIPS HEADER MIATCPEP5. FORECAST/ADVISORIES ON ISELLE ARE ISSUED UNDER WMO HEADER WTPZ25 AND UNDER AWIPS HEADER MIATCMEP5. $$ FORECASTER KNABB