000 FKNT23 KNHC 200858 TCANT3 TROPICAL STORM HENRI ICAO ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082021 0900 UTC FRI AUG 20 2021 TC ADVISORY DTG: 20210820/0900Z TCAC: KNHC TC: HENRI ADVISORY NR: 2021/018 OBS PSN: 20/0900Z N3012 W07306 MOV: WNW 08KT INTST CHANGE: NC C: 0995HPA MAX WIND: 055KT FCST PSN +6 HR: 20/1500Z N3044 W07321 FCST MAX WIND +6 HR: 055KT FCST PSN +12 HR: 20/2100Z N3130 W07321 FCST MAX WIND +12 HR: 055KT FCST PSN +18 HR: 21/0300Z N3230 W07303 FCST MAX WIND +18 HR: 060KT FCST PSN +24 HR: 21/0900Z N3346 W07237 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: 20210820/1500Z $$