000 FKNT24 KNHC 220248 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 0300 UTC WED AUG 22 2012 TC ADVISORY DTG: 20120822/0300Z TCAC: KNHC TC: ISAAC NR: 004 PSN: N1536 W05536 MOV: W 16KT C: 1006HPA MAX WIND: 035KT FCST PSN + 06 HR: 220900 N1544 W05716 FCST MAX WIND + 06 HR: 040KT FCST PSN + 12 HR: 221500 N1554 W05852 FCST MAX WIND + 12 HR: 040KT FCST PSN + 18 HR: 222100 N1606 W06025 FCST MAX WIND + 18 HR: 045KT FCST PSN + 24 HR: 230300 N1619 W06158 FCST MAX WIND + 24 HR: 050KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120822/0900Z ..