000 FKNT23 KNHC 170835 TCANT3 HURRICANE GERT ICAO ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082017 0900 UTC THU AUG 17 2017 TC ADVISORY DTG: 20170817/0900Z TCAC: KNHC TC: GERT NR: 018 PSN: N4142 W05400 MOV: ENE 34KT C: 0968HPA MAX WIND: 085KT FCST PSN + 06 HR: 171500 N4322 W04936 FCST MAX WIND + 06 HR: 075KT FCST PSN + 12 HR: 172100 N4509 W04536 FCST MAX WIND + 12 HR: 065KT FCST PSN + 18 HR: 180300 N4703 W04200 FCST MAX WIND + 18 HR: 060KT FCST PSN + 24 HR: 180900 N4840 W03909 FCST MAX WIND + 24 HR: 055KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170817/1500Z $$