000 ABNT20 KNHC 232339 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT SUN OCT 23 2011 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON NEWLY FORMED TROPICAL DEPRESSION EIGHTEEN...LOCATED OVER THE WESTERN CARIBBEAN SEA ABOUT 105 MILES NORTHEAST OF THE NICARAGUA-HONDURAS BORDER. A BROAD LOW PRESSURE AREA LOCATED ABOUT 185 MILES EAST-SOUTHEAST OF BARBADOS IS PRODUCING SCATTERED SHOWERS AND A FEW THUNDERSTORMS. UPPER-LEVEL WINDS ARE ONLY MARGINALLY FAVORABLE AND DEVELOPMENT... IF ANY...OF THIS DISTURBANCE SHOULD BE SLOW TO OCCUR. HOWEVER... THE LOW WILL PRODUCE BRIEF PERIODS OF LOCALLY HEAVY RAINFALL AND GUSTY WINDS IN THE WINDWARD ISLANDS TONIGHT AND INTO MONDAY. THIS SYSTEM HAS A LOW CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST-NORTHWESTWARD AT ABOUT 10 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART/KIMBERLAIN