000 FKNT24 KNHC 252050 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 19 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 2100 UTC SAT AUG 25 2012 TC ADVISORY DTG: 20120825/2100Z TCAC: KNHC TC: ISAAC NR: 019 PSN: N2118 W07600 MOV: NW 18KT C: 0997HPA MAX WIND: 050KT FCST PSN + 06 HR: 260300 N2210 W07720 FCST MAX WIND + 06 HR: 055KT FCST PSN + 12 HR: 260900 N2258 W07839 FCST MAX WIND + 12 HR: 055KT FCST PSN + 18 HR: 261500 N2343 W07957 FCST MAX WIND + 18 HR: 060KT FCST PSN + 24 HR: 262100 N2422 W08107 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: 20120826/0300Z ..