000 FKNT22 KNHC 172124 TCANT2 TROPICAL STORM HELENE SPECIAL ICAO ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012 2130 UTC FRI AUG 17 2012 TC ADVISORY DTG: 20120817/2130Z TCAC: KNHC TC: HELENE NR: 011 PSN: N2036 W09606 MOV: NW 06KT C: 1004HPA MAX WIND: 040KT FCST PSN + 06 HR: 180300 N2054 W09636 FCST MAX WIND + 06 HR: 045KT FCST PSN + 12 HR: 180900 N2121 W09712 FCST MAX WIND + 12 HR: 045KT FCST PSN + 18 HR: 181500 N2151 W09748 FCST MAX WIND + 18 HR: 040KT FCST PSN + 24 HR: 182100 N2218 W09819 FCST MAX WIND + 24 HR: 035KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120818/0300Z ..