WTPQ30 RJTD 131200 RSMC TROPICAL CYCLONE PROGNOSTIC REASONING REASONING NO. 5 FOR TD LOCATED AT 7N 140E 1.GENERAL COMMENTS A TD IS LOCATED AT 7N, 140E. INFORMATION ON THE CURRENT POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS. CENTRAL PRESSURE IS 1008HPA AND MAXIMUM SUSTAINED WINDS ARE 25KNOTS. THE SYSTEM IS IN A FAVORABLE ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF HIGH SSTS AND HIGH TCHP. HOWEVER, THE LIMITED FIRMNESS OF ITS STRUCTURE HAS CAUSED IT TO WEAKEN OVER THE LAST SIX HOURS. INFORMATION ON THE CURRENT INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND SURFACE OBSERVATIONS. 2.SYNOPTIC SITUATION THE SYSTEM IS MOVING SLOWLY WESTWARD. ANIMATED MSI SHOWS THE SEPARATION OF ACTIVE CONVECTIVE CLOUD CLUSTERS FROM THE CSC. WATER VAPOR IMAGERY SHOWS DRY AIR AROUND THE SYSTEM. DMSP-F17/SSMIS 89 GHZ MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD CLUSTERS AROUND THE CSC. 3.TRACK FORECAST SEE THE MARINE WARNING (WWJP27 RJTD). 4.INTENSITY FORECAST SEE THE MARINE WARNING (WWJP27 RJTD). 5.REMARKS AS THE TD IS NOT EXPECTED TO BE UPGRADED TO TS INTENSITY IN THE NEXT 24 HOURS, THIS WILL BE THE FINAL PROGNOSTIC REASONING FOR THE SYSTEM. =