000 FKNT21 KNHC 120232 TCANT1 TROPICAL DEPRESSION IRMA ICAO ADVISORY NUMBER 52 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017 0300 UTC TUE SEP 12 2017 TC ADVISORY DTG: 20170912/0300Z TCAC: KNHC TC: IRMA NR: 052 PSN: N3224 W08454 MOV: NW 13KT C: 0988HPA MAX WIND: 030KT FCST PSN + 06 HR: 120900 N3320 W08554 FCST MAX WIND + 06 HR: 025KT FCST PSN + 12 HR: 121500 N3409 W08651 FCST MAX WIND + 12 HR: 025KT FCST PSN + 18 HR: 122100 N3451 W08745 FCST MAX WIND + 18 HR: 025KT FCST PSN + 24 HR: 130300 N3530 W08818 FCST MAX WIND + 24 HR: 025KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: NO MSG EXP ..