000 FKNT24 KNHC 260244 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 0300 UTC SUN AUG 26 2012 TC ADVISORY DTG: 20120826/0300Z TCAC: KNHC TC: ISAAC NR: 020 PSN: N2206 W07712 MOV: NW 15KT C: 0997HPA MAX WIND: 050KT FCST PSN + 06 HR: 260900 N2258 W07840 FCST MAX WIND + 06 HR: 055KT FCST PSN + 12 HR: 261500 N2342 W08000 FCST MAX WIND + 12 HR: 060KT FCST PSN + 18 HR: 262100 N2418 W08112 FCST MAX WIND + 18 HR: 065KT FCST PSN + 24 HR: 270300 N2454 W08216 FCST MAX WIND + 24 HR: 070KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120826/0900Z ..