000 FKNT23 KNHC 132031 TCANT3 TROPICAL STORM GERT ICAO ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082017 2100 UTC SUN AUG 13 2017 TC ADVISORY DTG: 20170813/2100Z TCAC: KNHC TC: GERT NR: 004 PSN: N2806 W07142 MOV: NNW 09KT C: 1011HPA MAX WIND: 035KT FCST PSN + 06 HR: 140300 N2854 W07158 FCST MAX WIND + 06 HR: 040KT FCST PSN + 12 HR: 140900 N2945 W07206 FCST MAX WIND + 12 HR: 045KT FCST PSN + 18 HR: 141500 N3039 W07206 FCST MAX WIND + 18 HR: 050KT FCST PSN + 24 HR: 142100 N3133 W07154 FCST MAX WIND + 24 HR: 050KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170814/0300Z $$