000 ABNT20 KNHC 211157 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM EDT TUE JUL 21 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THUNDERSTORM ACTIVITY HAS INCREASED THIS MORNING IN ASSOCIATION WITH A TROPICAL WAVE OVER THE EASTERN CARIBBEAN SEA. HOWEVER...UPPER- LEVEL WINDS REMAIN UNFAVORABLE FOR DEVELOPMENT OF THIS SYSTEM AT THIS TIME. REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINFALL AND GUSTY WINDS WILL AFFECT PORTIONS OF THE LESSER ANTILLES...THE VIRGIN ISLANDS...AND PUERTO RICO TODAY AS THE WAVE MOVES WEST- NORTHWESTWARD AT 15 TO 20 MPH. THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. SHOWERS AND THUNDERSTORMS HAVE BECOME MORE CONCENTRATED NEAR THE NORTHERN BAHAMA ISLANDS THIS MORNING. HOWEVER...SURFACE PRESSURES IN THE AREA ARE HIGH...AND THERE ARE NO SIGNS OF ORGANIZATION. 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. $$ FORECASTER BEVEN