000 FKPZ22 KNHC 211459 TCAPZ2 TROPICAL STORM GREG ICAO ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 1500 UTC FRI JUL 21 2017 TC ADVISORY DTG: 20170721/1500Z TCAC: KNHC TC: GREG NR: 017 PSN: N1506 W11912 MOV: WNW 09KT C: 1001HPA MAX WIND: 050KT FCST PSN + 06 HR: 212100 N1518 W12012 FCST MAX WIND + 06 HR: 055KT FCST PSN + 12 HR: 220300 N1528 W12113 FCST MAX WIND + 12 HR: 055KT FCST PSN + 18 HR: 220900 N1537 W12216 FCST MAX WIND + 18 HR: 060KT FCST PSN + 24 HR: 221500 N1545 W12322 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: 20170721/2100Z ..