000 FKNT21 KNHC 050236 TCANT1 HURRICANE IRMA ICAO ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017 0300 UTC TUE SEP 05 2017 TC ADVISORY DTG: 20170905/0300Z TCAC: KNHC TC: IRMA NR: 023 PSN: N1642 W05536 MOV: W 11KT C: 0943HPA MAX WIND: 120KT FCST PSN + 06 HR: 050900 N1650 W05648 FCST MAX WIND + 06 HR: 125KT FCST PSN + 12 HR: 051500 N1703 W05803 FCST MAX WIND + 12 HR: 125KT FCST PSN + 18 HR: 052100 N1721 W05921 FCST MAX WIND + 18 HR: 130KT FCST PSN + 24 HR: 060300 N1742 W06040 FCST MAX WIND + 24 HR: 130KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170905/0900Z ..