000 FKNT22 KNHC 170855 TCANT2 TROPICAL STORM GRACE ICAO ADVISORY NUMBER 16 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072021 0900 UTC TUE AUG 17 2021 TC ADVISORY DTG: 20210817/0900Z TCAC: KNHC TC: GRACE ADVISORY NR: 2021/016 OBS PSN: 17/0900Z N1812 W07524 MOV: W 14KT INTST CHANGE: INTSF C: 1005HPA MAX WIND: 035KT FCST PSN +6 HR: 17/1500Z N1828 W07651 FCST MAX WIND +6 HR: 040KT FCST PSN +12 HR: 17/2100Z N1843 W07822 FCST MAX WIND +12 HR: 040KT FCST PSN +18 HR: 18/0300Z N1858 W07955 FCST MAX WIND +18 HR: 045KT FCST PSN +24 HR: 18/0900Z N1915 W08130 FCST MAX WIND +24 HR: 045KT RMK: THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20210817/1500Z $$