000 ABPZ20 KNHC 212345 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 500 PM PDT MON JUN 21 2010 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE CELIA LOCATED ABOUT 515 MILES SOUTH-SOUTHWEST OF MANZANILLO MEXICO...AND HAS ISSUED THE FINAL ADVISORY ON TROPICAL DEPRESSION BLAS LOCATED ABOUT 750 MILES WEST-SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. #7 A LARGE LOW PRESSURE SYSTEM CENTERED A FEW HUNDRED MILES SOUTH OF GUATEMALA IS ACCOMPANIED BY A BROAD AREA OF SCATTERED SHOWERS AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS APPEAR FAVORABLE FOR GRADUAL DEVELOPMENT OF THIS SYSTEM AND A TROPICAL DEPRESSION COULD FORM DURING THE NEXT COUPLE OF DAYS. THERE IS A MEDIUM CHANCE... 60 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST-NORTHWESTWARD AT ABOUT 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART