000 FKNT24 KNHC 230856 TCANT4 TROPICAL STORM MARCO ICAO ADVISORY NUMBER 12 NWS NATIONAL HURRICANE CENTER MIAMI FL AL142020 0900 UTC SUN AUG 23 2020 TC ADVISORY DTG: 20200823/0900Z TCAC: KNHC TC: MARCO ADVISORY NR: 2020/012 OBS PSN: 23/0900Z N2342 W08700 MOV: NNW 11KT C: 0994HPA MAX WIND: 060KT FCST PSN +6 HR: 23/1500Z N2445 W08723 FCST MAX WIND +6 HR: 065KT FCST PSN +12 HR: 23/2100Z N2548 W08751 FCST MAX WIND +12 HR: 065KT FCST PSN +18 HR: 24/0300Z N2648 W08821 FCST MAX WIND +18 HR: 065KT FCST PSN +24 HR: 24/0900Z N2743 W08852 FCST MAX WIND +24 HR: 065KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20200823/1500Z ??