000 FKNT24 KNHC 211457 TCANT4 TROPICAL STORM IRENE ICAO ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011 1500 UTC SUN AUG 21 2011 TC ADVISORY DTG: 20110821/1500Z TCAC: KNHC TC: IRENE NR: 004 PSN: N1700 W06312 MOV: WNW 17KT C: 1005HPA MAX WIND: 045KT FCST PSN + 06 HR: 212100 N1720 W06444 FCST MAX WIND + 06 HR: 050KT FCST PSN + 12 HR: 220300 N1740 W06610 FCST MAX WIND + 12 HR: 060KT FCST PSN + 18 HR: 220900 N1801 W06731 FCST MAX WIND + 18 HR: 065KT FCST PSN + 24 HR: 221500 N1822 W06852 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: 20110821/2100Z $$