000 ABNT20 KNHC 192111 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 530 PM EDT TUE SEP 19 2006 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL WEATHER SERVICE IS ISSUING ADVISORIES ON HURRICANE GORDON...LOCATED ABOUT 250 MILES WEST-SOUTHWEST OF TERCEIRA IN THE AZORES...AND ON HURRICANE HELENE...LOCATED ABOUT 840 MILES SOUTHEAST OF BERMUDA. A NON-TROPICAL LOW PRESSURE SYSTEM LOCATED ABOUT 320 MILES SOUTH-SOUTHEAST OF CAPE COD IS MOVING NORTH-NORTHEASTWARD AT 10 TO 15 MPH. SHOWER ACTIVITY ASSOCIATED WITH THIS SYSTEM HAS INCREASED A LITTLE TODAY...AND SOME DEVELOPMENT IS POSSIBLE BEFORE THE LOW REACHES COOLER WATERS ON WEDNESDAY. ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH WEDNESDAY. $$ FORECASTER PASCH