000 ABNT20 KNHC 132106 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 530 PM EDT MON AUG 13 2007 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER ISSUING ADVISORIES ON TROPICAL DEPRESSION FOUR...LOCATED ABOUT 1900 MILES EAST OF THE LESSER ANTILLES. DISORGANIZED SHOWER ACTIVITY CONTINUES IN ASSOCIATION WITH A WEAK AREA OF LOW PRESSURE THAT IS CENTERED JUST NORTH OF THE NORTHEASTERN TIP OF THE YUCATAN PENINSULA. UPPER-LEVEL WINDS ARE GRADUALLY BECOMING MORE FAVORABLE FOR DEVELOPMENT OF THIS SYSTEM...AND A TROPICAL DEPRESSION COULD FORM TONIGHT OR TOMORROW AS THE LOW MOVES TO THE WEST-NORTHWEST AT 10 TO 15 MPH. INTERESTS IN THE WESTERN GULF OF MEXICO SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. AN AIR FORCE RESERVE RECONNASSIANCE PLANE IS SCHEDULED TO INVESTIGATE THIS SYSTEM TOMORROW AFTERNOON...IF NECESSARY. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON TROPICAL DEPRESSION FOUR ARE ISSUED UNDER WMO HEADER WTNT34 AND UNDER AWIPS HEADER MIATCPAT4. FORECAST/ADVISORIES ON THE DEPRESSION ARE ISSUED UNDER WMO HEADER WTNT24 AND UNDER AWIPS HEADER MIATCMAT4. $$ FORECASTER FRANKLIN