000 ABNT20 KNHC 311501 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1130 AM EDT TUE JUL 31 2007 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON RECENTLY UPGRADED TROPICAL STORM CHANTAL...LOCATED ABOUT 305 MILES SOUTH OF HALIFAX NOVA SCOTIA. A WEAK AREA OF LOW PRESSURE ASSOCIATED WITH A TROPICAL WAVE IS CENTERED ABOUT 600 MILES EAST OF THE SOUTHERN WINDWARD ISLANDS AND IS MOVING WESTWARD AROUND 10 TO 15 MPH. ALTHOUGH THIS SYSTEM HAS BECOME LESS ORGANIZED OVER THE PAST FEW HOURS...IT STILL HAS THE POTENTIAL TO BECOME A TROPICAL DEPRESSION DURING THE NEXT COUPLE OF DAYS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON TROPICAL STORM CHANTAL ARE ISSUED UNDER WMO HEADER WTNT33 AND UNDER AWIPS HEADER MIATCPAT3. FORECAST/ADVISORIES ON TROPICAL STORM CHANTAL ARE ISSUED UNDER WMO HEADER WTNT23 AND UNDER AWIPS HEADER MIATCMAT3. $$ FORECASTER BLAKE