000 FKNT23 KNHC 230834 TCANT3 TROPICAL DEPRESSION EIGHTEEN ICAO ADVISORY NUMBER 3 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0900 UTC THU SEP 23 2021 TC ADVISORY DTG: 20210923/0900Z TCAC: KNHC TC: EIGHTEEN ADVISORY NR: 2021/003 OBS PSN: 23/0900Z N1030 W03624 MOV: W 13KT INTST CHANGE: NC C: 1008HPA MAX WIND: 030KT FCST PSN +6 HR: 23/1500Z N1042 W03744 FCST MAX WIND +6 HR: 035KT FCST PSN +12 HR: 23/2100Z N1055 W03901 FCST MAX WIND +12 HR: 035KT FCST PSN +18 HR: 24/0300Z N1110 W04016 FCST MAX WIND +18 HR: 040KT FCST PSN +24 HR: 24/0900Z N1127 W04130 FCST MAX WIND +24 HR: 045KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20210923/1500Z $$