573 FKNT24 KNHC 130856 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092018 0900 UTC THU SEP 13 2018 TC ADVISORY DTG: 20180913/0900Z TCAC: KNHC TC: ISAAC NR: 023 PSN: N1524 W05942 MOV: W 15KT C: 1006HPA MAX WIND: 040KT FCST PSN + 06 HR: 131500 N1528 W06106 FCST MAX WIND + 06 HR: 035KT FCST PSN + 12 HR: 132100 N1530 W06233 FCST MAX WIND + 12 HR: 035KT FCST PSN + 18 HR: 140300 N1530 W06403 FCST MAX WIND + 18 HR: 035KT FCST PSN + 24 HR: 140900 N1530 W06533 FCST MAX WIND + 24 HR: 035KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20180913/1500Z $$