000 ABNT20 KNHC 232111 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 530 PM EDT SAT SEP 23 2006 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE HELENE...LOCATED ABOUT 945 MILES WEST OF THE AZORES ISLANDS. A LARGE TROPICAL WAVE ACCOMPANIED BY A BROAD SURFACE LOW PRESSURE AREA IS LOCATED ABOUT 1050 MILES WEST-NORTHWEST OF THE CAPE VERDE ISLANDS. THE ASSOCIATED SHOWER AND THUNDERSTORM ACTIVITY HAS BECOME A LITTLE BETTER ORGANIZED THIS AFTERNOON...AND SLOW DEVELOPMENT OF THIS SYSTEM IS POSSIBLE OVER THE NEXT COUPLE OF DAYS AS IT MOVES TOWARD THE NORTH-NORTHWEST AROUND 10 MPH. ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH SUNDAY. $$ FORECASTER MAINELLI/BEVEN