000 FKPZ25 KNHC 270855 TCAPZ5 TROPICAL STORM IRWIN ICAO ADVISORY NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102017 0900 UTC THU JUL 27 2017 TC ADVISORY DTG: 20170727/0900Z TCAC: KNHC TC: IRWIN NR: 020 PSN: N1442 W12348 MOV: WSW 05KT C: 0997HPA MAX WIND: 050KT FCST PSN + 06 HR: 271500 N1438 W12412 FCST MAX WIND + 06 HR: 050KT FCST PSN + 12 HR: 272100 N1434 W12430 FCST MAX WIND + 12 HR: 050KT FCST PSN + 18 HR: 280300 N1431 W12442 FCST MAX WIND + 18 HR: 055KT FCST PSN + 24 HR: 280900 N1427 W12446 FCST MAX WIND + 24 HR: 055KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20170727/1500Z ..