000 FKNT24 KNHC 211440 TCANT4 POTENTIAL TROPICAL CYCLONE NINE ICAO ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092023 1500 UTC MON AUG 21 2023 TC ADVISORY DTG: 20230821/1500Z TCAC: KNHC TC: NINE ADVISORY NR: 2023/001 OBS PSN: 21/1500Z N2500 W08954 MOV: W 14KT INTST CHANGE: NC C: 1008HPA MAX WIND: 025KT FCST PSN +3 HR: 21/1800Z N2510 W09052 FCST MAX WIND +3 HR: 025KT FCST PSN +9 HR: 22/0000Z N2530 W09248 FCST MAX WIND +9 HR: 030KT FCST PSN +15 HR: 22/0600Z N2603 W09448 FCST MAX WIND +15 HR: 035KT FCST PSN +21 HR: 22/1200Z N2636 W09648 FCST MAX WIND +21 HR: 040KT FCST PSN +27 HR: 22/1800Z N2712 W09826 FCST MAX WIND +27 HR: 035KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20230821/2100Z $$