664 FKNT23 KNHC 120835 TCANT3 HURRICANE HELENE ICAO ADVISORY NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 0900 UTC WED SEP 12 2018 TC ADVISORY DTG: 20180912/0900Z TCAC: KNHC TC: HELENE NR: 020 PSN: N1912 W03542 MOV: NNW 11KT C: 0977HPA MAX WIND: 080KT FCST PSN + 06 HR: 121500 N2012 W03618 FCST MAX WIND + 06 HR: 075KT FCST PSN + 12 HR: 122100 N2115 W03645 FCST MAX WIND + 12 HR: 075KT FCST PSN + 18 HR: 130300 N2221 W03703 FCST MAX WIND + 18 HR: 070KT FCST PSN + 24 HR: 130900 N2333 W03713 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: 20180912/1500Z $$