000 ABPZ20 KNHC 181133 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT MON JUL 18 2011 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THUNDERSTORM ACTIVITY HAS BECOME MORE CONCENTRATED NEAR THE CENTER OF A WELL-DEFINED LOW PRESSURE SYSTEM LOCATED ABOUT 240 MILES SOUTH OF GUATEMALA. UPPER-LEVEL WINDS HAVE ALSO BECOME MORE CONDUCIVE FOR DEVELOPMENT...AND A TROPICAL DEPRESSION COULD FORM LATER TODAY. THIS SYSTEM HAS A HIGH CHANCE...90 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD AT 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART 000 ABPZ20 KNHC 181133 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT MON JUL 18 2011 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THUNDERSTORM ACTIVITY HAS BECOME MORE CONCENTRATED NEAR THE CENTER OF A WELL-DEFINED LOW PRESSURE SYSTEM LOCATED ABOUT 240 MILES SOUTH OF GUATEMALA. UPPER-LEVEL WINDS HAVE ALSO BECOME MORE CONDUCIVE FOR DEVELOPMENT...AND A TROPICAL DEPRESSION COULD FORM LATER TODAY. THIS SYSTEM HAS A HIGH CHANCE...90 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD AT 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART