000 ABPZ20 KNHC 181739 TWOEP TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1100 AM PDT FRI JUN 18 2010 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM BLAS LOCATED ABOUT 290 MILES SOUTHWEST OF MANZANILLO MEXICO. AN AREA OF SHOWERS AND THUNDERSTORMS CENTERED A FEW HUNDRED MILES SOUTH OF THE GULF OF TEHUANTEPEC IS ASSOCIATED WITH A TROPICAL WAVE. THIS SYSTEM HAS BECOME A LITTLE BETTER ORGANIZED...AND ADDITIONAL SLOW DEVELOPMENT IS POSSIBLE OVER THE NEXT DAY OR TWO AS IT MOVES TOWARD THE WEST-NORTHWEST AT 5 TO 10 MPH. THERE IS A LOW CHANCE...20 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BEVEN