000 FKNT24 KNHC 230256 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 0300 UTC THU AUG 23 2012 TC ADVISORY DTG: 20120823/0300Z TCAC: KNHC TC: ISAAC NR: 008 PSN: N1548 W06300 MOV: W 17KT C: 1003HPA MAX WIND: 040KT FCST PSN + 06 HR: 230900 N1604 W06436 FCST MAX WIND + 06 HR: 045KT FCST PSN + 12 HR: 231500 N1622 W06604 FCST MAX WIND + 12 HR: 050KT FCST PSN + 18 HR: 232100 N1643 W06725 FCST MAX WIND + 18 HR: 055KT FCST PSN + 24 HR: 240300 N1703 W06842 FCST MAX WIND + 24 HR: 060KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120823/0900Z ..