000 ABNT20 KNHC 272348 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT WED AUG 27 2008 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM GUSTAV...LOCATED ABOUT 65 MILES SOUTH OF GUANTANAMO CUBA. THUNDERSTORM ACTIVITY HAS BECOME MORE CONCENTRATED THIS EVENING WITH THE LOW PRESSURE SYSTEM CENTERED ABOUT 375 MILES EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BECOME MORE CONDUCIVE FOR A TROPICAL DEPRESSION TO FORM TONIGHT OR TOMORROW AS IT DRIFTS NORTHWESTWARD. A LARGE TROPICAL WAVE LOCATED OVER THE FAR EASTERN ATLANTIC ABOUT 650 MILES WEST OF THE CAPE VERDE ISLANDS CONTINUES TO PRODUCE DISORGANIZED SHOWER AND THUNDERSTORM ACTIVITY. SOME SLOW DEVELOPMENT OF THIS SYSTEM IS POSSIBLE OVER THE NEXT COUPLE OF DAYS AT IT MOVES WESTWARD AT 10 TO 15 MILES PER HOUR. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART/FRANKLIN