000 FKNT24 KNHC 270840 TCANT4 TROPICAL STORM HARVEY ICAO ADVISORY NUMBER 28 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092017 0900 UTC SUN AUG 27 2017 TC ADVISORY DTG: 20170827/0900Z TCAC: KNHC TC: HARVEY NR: 028 PSN: N2912 W09742 MOV: SSW 01KT C: 0998HPA MAX WIND: 040KT FCST PSN + 06 HR: 271500 N2904 W09730 FCST MAX WIND + 06 HR: 035KT FCST PSN + 12 HR: 272100 N2855 W09718 FCST MAX WIND + 12 HR: 035KT FCST PSN + 18 HR: 280300 N2846 W09706 FCST MAX WIND + 18 HR: 030KT FCST PSN + 24 HR: 280900 N2839 W09654 FCST MAX WIND + 24 HR: 030KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170827/1500Z ..