000 ABPZ20 KNHC 211139 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 500 AM 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 380 MILES SOUTH-SOUTHWEST OF ACAPULCO MEXICO...AND ON TROPICAL DEPRESSION BLAS LOCATED ABOUT 575 MILES SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. A BROAD AREA OF LOW PRESSURE LOCATED A FEW HUNDRED MILES SOUTH OF GUATEMALA AND EL SALVADOR IS ACCOMPANIED BY A LARGE AREA OF CLOUDINESS AND SHOWERS. SOME SLOW DEVELOPMENT OF THIS SYSTEM IS POSSIBLE OVER THE NEXT COUPLE OF DAYS AS ENVIRONMENTAL CONDITIONS ARE EXPECTED TO GRADUALLY BECOME MORE FAVORABLE FOR DEVELOPMENT. THERE IS A LOW CHANCE...20 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS THIS SYSTEM MOVES WEST-NORTHWESTWARD NEAR 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BLAKE