000 FKNT25 KNHC 310251 TCANT5 TROPICAL STORM IDALIA ICAO ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102023 0300 UTC THU AUG 31 2023 TC ADVISORY DTG: 20230831/0300Z TCAC: KNHC TC: IDALIA ADVISORY NR: 2023/018 OBS PSN: 31/0300Z N3300 W08000 MOV: NE 18KT INTST CHANGE: WKN C: 0987HPA MAX WIND: 050KT FCST PSN +3 HR: 31/0600Z N3318 W07908 FCST MAX WIND +3 HR: 050KT FCST PSN +9 HR: 31/1200Z N3354 W07724 FCST MAX WIND +9 HR: 050KT FCST PSN +15 HR: 31/1800Z N3354 W07536 FCST MAX WIND +15 HR: 050KT FCST PSN +21 HR: 01/0000Z N3354 W07348 FCST MAX WIND +21 HR: 050KT FCST PSN +27 HR: 01/0600Z N3333 W07221 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: 20230831/0900Z $$