000 FKNT21 KNHC 211453 TCANT1 POTENTIAL TROPICAL CYCLONE SIXTEEN ICAO ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162023 1500 UTC THU SEP 21 2023 TC ADVISORY DTG: 20230921/1500Z TCAC: KNHC TC: SIXTEEN ADVISORY NR: 2023/001 OBS PSN: 21/1500Z N2842 W07554 MOV: N 08KT INTST CHANGE: NC C: 1012HPA MAX WIND: 030KT FCST PSN +3 HR: 21/1800Z N2907 W07545 FCST MAX WIND +3 HR: 030KT FCST PSN +9 HR: 22/0000Z N3000 W07530 FCST MAX WIND +9 HR: 035KT FCST PSN +15 HR: 22/0600Z N3051 W07527 FCST MAX WIND +15 HR: 040KT FCST PSN +21 HR: 22/1200Z N3142 W07524 FCST MAX WIND +21 HR: 045KT FCST PSN +27 HR: 22/1800Z N3227 W07530 FCST MAX WIND +27 HR: 050KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20230921/2100Z $$