000 FKNT22 KNHC 171452 TCANT2 TROPICAL STORM GRACE ICAO ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072021 1500 UTC TUE AUG 17 2021 TC ADVISORY DTG: 20210817/1500Z TCAC: KNHC TC: GRACE ADVISORY NR: 2021/017 OBS PSN: 17/1500Z N1818 W07648 MOV: W 13KT INTST CHANGE: INTSF C: 1005HPA MAX WIND: 045KT FCST PSN +6 HR: 17/2100Z N1837 W07815 FCST MAX WIND +6 HR: 050KT FCST PSN +12 HR: 18/0300Z N1854 W07948 FCST MAX WIND +12 HR: 060KT FCST PSN +18 HR: 18/0900Z N1906 W08124 FCST MAX WIND +18 HR: 065KT FCST PSN +24 HR: 18/1500Z N1919 W08258 FCST MAX WIND +24 HR: 065KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20210817/2100Z $$