542 FKNT21 KNHC 230851 TCANT1 TROPICAL STORM OPHELIA ICAO ADVISORY NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162023 0900 UTC SAT SEP 23 2023 TC ADVISORY DTG: 20230923/0900Z TCAC: KNHC TC: OPHELIA ADVISORY NR: 2023/008 OBS PSN: 23/0900Z N3418 W07654 MOV: NNW 08KT INTST CHANGE: NC C: 0981HPA MAX WIND: 060KT FCST PSN +3 HR: 23/1200Z N3441 W07706 FCST MAX WIND +3 HR: 055KT FCST PSN +9 HR: 23/1800Z N3530 W07730 FCST MAX WIND +9 HR: 045KT FCST PSN +15 HR: 24/0000Z N3615 W07724 FCST MAX WIND +15 HR: 040KT FCST PSN +21 HR: 24/0600Z N3700 W07718 FCST MAX WIND +21 HR: 035KT FCST PSN +27 HR: 24/1200Z N3736 W07648 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: 20230923/1500Z $$