000 FKNT24 KNHC 250839 TCANT4 POST-TROPICAL CYCLONE MARCO ICAO ADVISORY NUMBER 21 NWS NATIONAL HURRICANE CENTER MIAMI FL AL142020 0900 UTC TUE AUG 25 2020 TC ADVISORY DTG: 20200825/0900Z TCAC: KNHC TC: MARCO ADVISORY NR: 2020/021 OBS PSN: 25/0900Z N2848 W09112 MOV: W 09KT C: 1008HPA MAX WIND: 025KT FCST PSN +6 HR: 25/1500Z N2848 W09212 FCST MAX WIND +6 HR: 020KT FCST PSN +12 HR: 25/2100Z N//// W///// FCST MAX WIND +12 HR: ///KT FCST PSN +18 HR: 26/0300Z N//// W///// FCST MAX WIND +18 HR: ///KT FCST PSN +24 HR: 26/0900Z N//// W///// FCST MAX WIND +24 HR: ///KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: NO MSG EXP ??