000 ABNT20 KNHC 271742 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT WED OCT 27 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A LOW PRESSURE SYSTEM LOCATED ABOUT 1200 MILES NORTHWEST OF THE NORTHERNMOST CAPE VERDE ISLANDS CONTINUES TO PRODUCE DISORGANIZED SHOWERS AND THUNDERSTORMS. THE SURFACE CIRCULATION OF THIS SYSTEM HAS BECOME A LITTLE BETTER DEFINED TODAY AND UPPER-LEVEL WINDS COULD BECOME MARGINALLY CONDUCIVE FOR DEVELOPMENT OVER THE NEXT DAY OR TWO. THERE IS A MEDIUM CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT REMAINS NEARLY STATIONARY. DISORGANIZED SHOWERS AND THUNDERSTORMS ASSOCIATED WITH AN UPPER- LEVEL AND SURFACE TROUGH ARE LOCATED ABOUT 650 MILES EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS. ENVIRONMENTAL CONDITIONS COULD BECOME MORE FAVORABLE FOR DEVELOPMENT OF THIS DISTURBANCE...AND THERE IS A LOW CHANCE...20 PERCENT...OF THIS SYSTEM BECOMING A SUBTROPICAL OR TROPICAL CYCLONE DURING THE NEXT 48 HOURS. A VIGOROUS TROPICAL WAVE IS LOCATED OVER THE CENTRAL TROPICAL ATLANTIC ABOUT 1200 MILES EAST-SOUTHEAST OF THE WINDWARD ISLANDS. UPPER-LEVEL WINDS ARE FORECAST TO BECOME MORE CONDUCIVE FOR SOME SLOW DEVELOPMENT OF THIS DISTURBANCE IN A COUPLE OF DAYS. THERE IS A LOW CHANCE...10 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD OR WEST-NORTHWESTWARD AT 15 TO 20 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER PASCH/KIMBERLAIN