000 ABNT20 KNHC 182348 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT THU SEP 18 2008 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A TROPICAL WAVE...ACCOMPANIED BY A WEAK SURFACE LOW PRESSURE SYSTEM...CONTINUES TO PRODUCE A LARGE AREA OF CLOUDINESS AND SHOWERS ACROSS THE LESSER ANTILLES AND ADJACENT ATLANTIC WATERS. SOME ADDITIONAL ORGANIZATION OF THIS SYSTEM IS POSSIBLE OVER THE NEXT COUPLE OF DAYS AS IT MOVES SLOWLY WEST-NORTHWESTWARD. LOCALLY HEAVY RAINFALL AND GUSTY WINDS WILL BE POSSIBLE OVER PORTIONS OF THE WINDWARD AND LEEWARD ISLANDS...AND THE EASTERN CARIBBEAN SEA TONIGHT AND FRIDAY. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART