000 ABNT20 KNHC 151142 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM EDT FRI AUG 15 2008 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THUNDERSTORM ACTIVITY HAS INCREASED THIS MORNING IN ASSOCIATION WITH THE AREA OF LOW PRESSURE LOCATED OVER PUERTO RICO. WHILE THIS SYSTEM CONTINUES TO SHOW SIGNS OF ORGANIZATION...IT DOES NOT YET APPEAR TO HAVE A WELL-DEFINED CENTER OF CIRCULATION AT THE SURFACE. UPPER-LEVEL WINDS ARE FAVORABLE FOR DEVELOPMENT. A TROPICAL DEPRESSION COULD FORM AT ANY TIME WITHIN THE NEXT DAY OR SO... ALTHOUGH WHEN AND WHERE A DEPRESSION MIGHT FORM IS UNCERTAIN...IN PART DUE TO POTENTIAL INTERACTIONS WITH THE LAND MASS OF HISPANIOLA. AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT IS SCHEDULED TO INVESTIGATE THIS SYSTEM LATER TODAY. REGARDLESS OF DEVELOPMENT...HEAVY RAINS AND GUSTY WINDS WILL OCCUR OVER PORTIONS OF THE VIRGIN ISLANDS...PUERTO RICO...AND HISPANIOLA TODAY AND TONIGHT...AND OVER PORTIONS OF EASTERN CUBA...THE TURKS AND CAICOS...AND THE SOUTHEASTERN BAHAMAS ON SATURDAY. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. INTERESTS IN THESE AREAS SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. SHOWER AND THUNDERSTORM ACTIVITY HAS BECOME A LITTLE MORE CONCENTRATED WITHIN A BROAD AREA OF LOW PRESSURE...ASSOCIATED WITH A TROPICAL WAVE...THAT IS LOCATED ABOUT 750 MILES EAST OF THE LESSER ANTILLES. GRADUAL DEVELOPMENT OF THIS SYSTEM IS POSSIBLE DURING THE NEXT COUPLE OF DAYS AS IT MOVES WEST-NORTHWESTWARD AT 10 TO 15 MPH. ELSEWHERE.. TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER KNABB