000 ABNT20 KNHC 012350 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT TUE SEP 1 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON NEWLY FORMED TROPICAL STORM ERIKA LOCATED 390 MILES EAST OF THE NORTHERN LEEWARD ISLANDS. AN AREA OF LOW PRESSURE ASSOCIATED WITH A TROPICAL WAVE IS SPREADING CLOUDINESS AND THUNDERSTORMS OVER THE CAPE VERDE ISLANDS. THIS SYSTEM CONTINUES TO SHOW SOME SIGNS OF ORGANIZATION AND DEVELOPMENT...IF ANY...EXPECTED TO BE SLOW TO OCCUR AS THE SYSTEM MOVES TO THE WEST OR WEST-NORTHWEST AT 10 TO 15 MPH. THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON ERIKA ARE ISSUED UNDER WMO HEADER WTNT31 KNHC AND UNDER AWIPS HEADER MIATCPAT1. FORECAST/ADVISORIES ARE ISSUED UNDER WMO HEADER WTNT21 KNHC AND UNDER AWIPS HEADER MIATCMAT1. $$ FORECASTER AVILA