000 ABNT20 KNHC 241138 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM EDT THU JUN 24 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A TROPICAL WAVE OVER THE WESTERN CARIBBEAN SEA CONTINUES TO PRODUCE SHOWERS AND A FEW THUNDERSTORMS ACROSS PORTIONS OF HISPANIOLA...JAMAICA...CUBA...THE CAYMAN ISLANDS...AND THE ADJACENT WATERS OF THE NORTHERN CARIBBEAN SEA. THIS SYSTEM HAS CHANGED LITTLE IN ORGANIZATION OVER THE PAST SEVERAL HOURS...WITH MOST OF THE SHOWER AND THUNDERSTORM ACTIVITY OCCURRING TO THE EAST OF THE WAVE AXIS...AND THE AIR FORCE RESERVE UNIT RECONNAISSANCE AIRCRAFT MISSION TO INVESTIGATE THE AREA TODAY HAS BEEN CANCELED. UPPER-LEVEL WINDS ARE EXPECTED TO BECOME MORE CONDUCIVE FOR DEVELOPMENT OF THIS SYSTEM AS IT MOVES WESTWARD OR WEST- NORTHWESTWARD AROUND 10 MPH OVER THE NEXT COUPLE OF DAYS. THERE IS A MEDIUM CHANCE...40 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 PASCH/CANGIALOSI