000 ABNT20 KNHC 170532 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT SAT SEP 17 2011 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A BROAD LOW PRESSURE SYSTEM IS LOCATED ABOUT 325 MILES SOUTH-SOUTHEAST OF THE SOUTHERN CAPE VERDE ISLANDS. SHOWERS AND THUNDERSTORMS HAVE BECOME A LITTLE MORE CONCENTRATED NEAR THE CENTER OF THE LOW THIS MORNING...AND SOME ADDITIONAL DEVELOPMENT OF THIS DISTURBANCE IS POSSIBLE DURING THE NEXT COUPLE OF DAYS. THIS SYSTEM HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD AT 10 TO 15 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART