000 ABNT20 KNHC 181733 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT SUN JUL 18 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A TROPICAL WAVE APPROACHING THE LEEWARD ISLANDS CONTINUES TO PRODUCE DISORGANIZED SHOWERS AND THUNDERSTORMS. HOWEVER...SURFACE PRESSURES REMAIN HIGH...AND ANY DEVELOPMENT OF THIS SYSTEM WILL BE SLOW TO OCCUR AS IT MOVES WEST-NORTHWESTWARD AT ABOUT 15 MPH. THERE IS A LOW CHANCE...10 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. REGARDLESS OF DEVELOPMENT...GUSTY WINDS AND LOCALLY HEAVY RAINFALL ASSOCIATED WITH THIS SYSTEM COULD AFFECT THE LEEWARD ISLANDS...THE VIRGIN ISLANDS...PUERTO RICO...THE DOMINICAN REPUBLIC...HAITI...AND THE TURKS AND CAICOS ISLANDS DURING THE NEXT COUPLE OF DAYS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS $$ FORECASTER BRENNAN