000 ABNT20 KNHC 102350 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT WED OCT 10 2012 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A VIGOROUS TROPICAL WAVE ACCOMPANIED BY A BROAD LOW PRESSURE SYSTEM IS LOCATED ABOUT 475 MILES EAST-SOUTHEAST OF THE WINDWARD ISLANDS. SHOWERS AND THUNDERSTORMS HAVE BECOME A LITTLE BETTER ORGANIZED THIS EVENING...AND REPORTS FROM BUOYS WELL NORTH OF THE CIRCULATION CENTER INDICATE TROPICAL-STORM-FORCE WINDS HAVE BEEN OCCURRING IN SOME OF THE HEAVIER SQUALLS. ALTHOUGH UPPER-LEVEL WINDS ARE CURRENTLY ONLY MARGINALLY FAVORABLE...SOME SLOW DEVELOPMENT OF THIS LARGE DISTURBANCE WILL BE POSSIBLE DURING THE NEXT COUPLE OF DAYS AS ENVIRONMENTAL CONDITIONS GRADUALLY BECOME MORE CONDUCIVE. THIS SYSTEM HAS A MEDIUM CHANCE...40 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS IT MOVES WEST-NORTHWESTWARD AT AROUND 15 MPH. REGARDLESS OF DEVELOPMENT...STRONG GUSTY WINDS AND HEAVY RAINFALL ARE POSSIBLE ACROSS PORTIONS OF THE LESSER ANTILLES DURING THE NEXT COUPLE OF DAYS. A WELL-DEFINED LOW PRESSURE SYSTEM LOCATED ABOUT 250 MILES EAST OF THE CENTRAL BAHAMAS HAS CONTINUED TO BECOME BETTER DEFINED OVER THE PAST SEVERAL HOURS. HOWEVER...ENVIRONMENTAL CONDITIONS ARE ONLY MARGINALLY CONDUCIVE FOR DEVELOPMENT DURING THE NEXT DAY OR SO BEFORE THE LOW MERGES WITH A COLD FRONT THURSDAY NIGHT OR FRIDAY. THIS SYSTEM HAS A LOW CHANCE...20 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES LITTLE. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART