000 FKNT21 KNHC 311449 TCANT1 HURRICANE IRMA ICAO ADVISORY NUMBER 5 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017 1500 UTC THU AUG 31 2017 TC ADVISORY DTG: 20170831/1500Z TCAC: KNHC TC: IRMA NR: 005 PSN: N1654 W03348 MOV: WNW 09KT C: 0979HPA MAX WIND: 085KT FCST PSN + 06 HR: 312100 N1718 W03444 FCST MAX WIND + 06 HR: 095KT FCST PSN + 12 HR: 010300 N1737 W03540 FCST MAX WIND + 12 HR: 100KT FCST PSN + 18 HR: 010900 N1752 W03637 FCST MAX WIND + 18 HR: 105KT FCST PSN + 24 HR: 011500 N1803 W03737 FCST MAX WIND + 24 HR: 105KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170831/2100Z ..