000 ABNT20 KNHC 071144 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM EDT WED OCT 7 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM HENRI...LOCATED ABOUT 460 MILES EAST OF THE NORTHERN LEEWARD ISLANDS. SHOWERS AND THUNDERSTORMS HAVE INCREASED IN ASSOCIATION WITH A TROPICAL WAVE LOCATED ABOUT 925 MILES EAST-SOUTHEAST OF THE WINDWARD ISLANDS. DEVELOPMENT...IF ANY...OF THIS SYSTEM SHOULD BE SLOW TO OCCUR AS IT MOVES TO THE WEST-NORTHWEST AT ABOUT 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 HENRI ARE ISSUED UNDER WMO HEADER WTNT35 KNHC AND UNDER AWIPS HEADER MIATCPAT5. FORECAST/ADVISORIES ARE ISSUED UNDER WMO HEADER WTNT25 KNHC AND UNDER AWIPS HEADER MIATCMAT5. $$ FORECASTER BLAKE/PASCH