000 FKNT24 KNHC 221449 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 1500 UTC WED AUG 22 2012 TC ADVISORY DTG: 20120822/1500Z TCAC: KNHC TC: ISAAC NR: 006 PSN: N1554 W05918 MOV: W 18KT C: 1006HPA MAX WIND: 040KT FCST PSN + 06 HR: 222100 N1610 W06058 FCST MAX WIND + 06 HR: 045KT FCST PSN + 12 HR: 230300 N1625 W06233 FCST MAX WIND + 12 HR: 045KT FCST PSN + 18 HR: 230900 N1640 W06403 FCST MAX WIND + 18 HR: 050KT FCST PSN + 24 HR: 231500 N1655 W06533 FCST MAX WIND + 24 HR: 055KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120822/2100Z ..