000 ABNT20 KNHC 211804 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT TUE JUL 21 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A TROPICAL WAVE OVER THE EASTERN CARIBBEAN SEA IS PRODUCING AN AREA OF CONCENTRATED SHOWERS AND THUNDERSTORMS. HOWEVER...UPPER- LEVEL WINDS REMAIN UNFAVORABLE FOR DEVELOPMENT OF THIS SYSTEM AT THIS TIME. REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINFALL AND GUSTY WINDS WILL AFFECT PORTIONS OF THE VIRGIN ISLANDS...PUERTO RICO...THE DOMINICAN REPUBLIC...AND HAITI TODAY AND TONIGHT AS THE WAVE MOVES WEST-NORTHWESTWARD AT NEAR 25 MPH. THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. SHOWERS AND THUNDERSTORMS CONTINUE NEAR THE NORTHERN BAHAMA ISLANDS IN ASSOCIATION WITH A WEAK SURFACE TROUGH. HOWEVER...SURFACE PRESSURES IN THE AREA REMAIN HIGH...AND THERE ARE NO SIGNS OF ORGANIZATION. THERE IS A LOW CHANCE...LESS THAN 30 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