000 ABNT20 KNHC 241520 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1130 AM EDT SUN SEP 24 2006 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER HAS ISSUED ITS LAST ADVISORY ON HELENE...WHICH HAS BECOME EXTRATROPICAL ABOUT 595 MILES WEST-NORTHWEST OF THE AZORES. A LARGE TROPICAL WAVE...ACCOMPANIED BY A BROAD SURFACE LOW PRESSURE AREA...IS LOCATED ABOUT 1200 MILES EAST OF THE NORTHERN LEEWARD ISLANDS. UPPER-LEVEL WINDS ARE ONLY MARGINALLY FAVORABLE FOR TROPICAL CYCLONE FORMATION IN THIS AREA. HOWEVER...ONLY A SLIGHT INCREASE IN THE ORGANIZATION OF THIS SYSTEM WOULD RESULT IN THE FORMATION OF A TROPICAL DEPRESSION LATER TODAY OR ON MONDAY AS IT DRIFTS GENERALLY NORTHWESTWARD. ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH MONDAY. $$ FORECASTER PASCH