ZCZC MIATCDAT4 ALL TTAA00 KNHC DDHHMM TROPICAL STORM CHANTAL SPECIAL DISCUSSION NUMBER 7 NATIONAL WEATHER SERVICE MIAMI FL 8 PM EDT THU AUG 16 2001 ALTHOUGH THE SATELLITE SIGNATURE IS THAT OF A TROPICAL CYCLONE...AIR FORCE RECON COULD NOT CLOSE OFF A CENTER AND SYNOPTIC DATA INDICATES A VERY BROAD AREA OF SURFACE LOW PRESSURE WITH NO DEFINITE MINIMUM. THUS CHANTAL IS DEGENERATING INTO A TROPICAL WAVE AND ADVISORIES ARE BEING DISCONTINUED AT THIS TIME. THE UPPER-LEVEL WIND FIELD LOOKS QUITE FAVORABLE...AND THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REDEVELOPMENT. ANOTHER HURRICANE HUNTER PLANE WILL INVESTIGATE THE SYSTEM TOMORROW MORNING. WITH STRONG HIGH PRESSURE TO THE NORTH...THE WAVE SHOULD CONTINUE TO MOVE RAPIDLY WESTWARD OVER THE CARIBBEAN SEA DURING THE NEXT COUPLE OF DAYS. FORECASTER PASCH FORECAST POSITIONS AND MAX WINDS INITIAL 16/2315Z 13.0N 61.0W 35 KTS...DISSIPATING 12HR VT 17/0600Z...DISSIPATED NNNN