000 FKPZ22 KNHC 210236 TCAPZ2 TROPICAL STORM GREG ICAO ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL EP072017 0300 UTC FRI JUL 21 2017 TC ADVISORY DTG: 20170721/0300Z TCAC: KNHC TC: GREG NR: 015 PSN: N1418 W11724 MOV: W 09KT C: 1003HPA MAX WIND: 045KT FCST PSN + 06 HR: 210900 N1430 W11820 FCST MAX WIND + 06 HR: 050KT FCST PSN + 12 HR: 211500 N1443 W11919 FCST MAX WIND + 12 HR: 055KT FCST PSN + 18 HR: 212100 N1458 W12022 FCST MAX WIND + 18 HR: 060KT FCST PSN + 24 HR: 220300 N1512 W12125 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: 20170721/0900Z ..