ADT Date/Time Fix Lat Lon | OBS Date/Time Fix Lat Lon | Diff 2018/07/21/0000Z FCST 17.9 -118.2 | 2018/07/21/0000Z BEST 17.8 -118.1 | 11.2 2018/07/21/0609Z FCST 18.2 -119.3 | 2018/07/21/0600Z BEST 18.4 -119.8 | 31.4 2018/07/21/1209Z FCST 19.1 -120.8 | 2018/07/21/1200Z BEST 19.1 -120.7 | 9.0 2018/07/21/1809Z FCST 20.1 -121.8 | 2018/07/21/1800Z BEST 20.0 -121.5 | 15.9 2018/07/22/0009Z FCST 21.0 -122.3 | 2018/07/22/0000Z BEST 21.0 -122.7 | 20.8 2018/07/22/0609Z FCST 22.2 -123.1 | 2018/07/22/0600Z BEST 21.9 -124.1 | 56.6 2018/07/22/1209Z FCST 23.1 -124.3 | 2018/07/22/1200Z BEST 23.6 -124.2 | 31.1 2018/07/22/1739Z FCST 24.7 -124.2 | 2018/07/22/1800Z BEST 24.3 -123.4 | 51.0 2018/07/23/0009Z FCST 25.8 -123.6 | 2018/07/23/0000Z BEST 26.0 -123.8 | 14.2 2018/07/23/0609Z FCST 27.6 -123.4 | 2018/07/23/0600Z BEST 28.2 -123.7 | 40.9 2018/07/23/1209Z FCST 29.9 -123.1 | 2018/07/23/1200Z BEST 30.0 -123.2 | 11.5