000 ABPZ20 KNHC 220532 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1100 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 505 MILES SOUTH OF MANZANILLO MEXICO. A LARGE LOW PRESSURE SYSTEM LOCATED 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 HIGH 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 PASCH