000 FKNT24 KNHC 240855 TCANT4 TROPICAL STORM HARVEY ICAO ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092017 0900 UTC THU AUG 24 2017 TC ADVISORY DTG: 20170824/0900Z TCAC: KNHC TC: HARVEY NR: 015 PSN: N2312 W09248 MOV: N 09KT C: 0995HPA MAX WIND: 040KT FCST PSN + 06 HR: 241500 N2344 W09320 FCST MAX WIND + 06 HR: 045KT FCST PSN + 12 HR: 242100 N2416 W09354 FCST MAX WIND + 12 HR: 055KT FCST PSN + 18 HR: 250300 N2449 W09430 FCST MAX WIND + 18 HR: 060KT FCST PSN + 24 HR: 250900 N2524 W09503 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: 20170824/1500Z ..