Tropical Storm 18L


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.0
 

                                         -------FORECAST-----   ----ARCHER---- 50% cert  95% cert Eyewall   Conf Alpha  Eye
     Date/Time(UTC)     Source   Sensor    Lat     Lon   Vmax      Lat     Lon   radius    radius  radius  Score Score  Prob    .
   20191025 20:45:00  METEOSAT       IR   35.82   32.24  40.0    35.77   32.24     0.41      1.17   0.05    0.62  4.06  92.5 GIF
   20191025 21:15:00  METEOSAT   NearIR   35.78   32.16  40.0    35.76   32.13     0.61      1.71   0.10    0.36  2.77  69.0 GIF
   20191025 21:45:00  METEOSAT   NearIR   35.75   32.09  40.0    35.57   30.70     0.59      1.66   0.50    0.37  2.86  66.9 GIF
   20191025 22:15:00  METEOSAT       IR   35.71   32.02  40.0    35.56   31.00     3.36      9.49   0.05    0.08  0.50  30.8 GIF
   20191025 22:45:00  METEOSAT   NearIR   35.67   31.95  40.0    35.55   30.44     0.50      1.41   0.25    0.43  3.37  71.9 GIF
   20191025 23:15:00  METEOSAT   NearIR   35.64   31.88  40.0    35.99   30.21     1.67      4.72   0.45    0.16  1.01  49.3 GIF
   20191025 23:30:00  METEOSAT   NearIR   35.62   31.84  40.0    36.19   30.24     1.17      3.30   0.50    0.21  1.44  49.5 GIF
   20191026 00:15:00  METEOSAT   NearIR   35.57   31.73  40.0    35.59   31.79     0.61      1.73   0.05    0.36  2.74  68.5 GIF
   20191026 00:45:00  METEOSAT       IR   35.53   31.66  40.0    35.76   30.24     3.36      9.49   0.15    0.20  0.50  49.5 GIF
   20191026 01:15:00  METEOSAT       IR   35.50   31.58  40.0    35.75   30.60     3.36      9.49   0.15    0.11  0.50  40.4 GIF
   20191026 01:45:00  METEOSAT   NearIR   35.47   31.50  40.0    35.47   31.56     1.52      4.29   0.10    0.17  1.11  48.6 GIF
   20191026 02:15:00  METEOSAT   NearIR   35.44   31.42  40.0    35.37   31.45     0.23      0.66   0.10    0.87  7.21  96.4 GIF
   20191026 02:45:00  METEOSAT   NearIR   35.51   31.16  40.0    35.41   31.37     0.25      0.70   0.10    0.83  6.80 100.0 GIF
   20191026 03:00:00  METEOSAT   NearIR   35.50   31.10  40.0    35.40   31.31     0.21      0.60   0.10    0.95  7.92 100.0 GIF
   20191026 03:45:00       GMI 85-92GHz   35.46   31.47  40.0    35.48   30.93     0.24      0.68    N/A    1.31  6.36   0.0 GIF
   20191026 04:15:00       GMI 85-92GHz   35.46   31.47  40.0    35.47   30.82     0.24      0.68    N/A    1.31  6.15   0.0 GIF
   20191026 04:45:00       GMI 85-92GHz   35.46   31.47  40.0    35.46   30.70     0.24      0.68    N/A    1.31  5.92   0.0 GIF
   20191026 05:15:00       GMI 85-92GHz   35.46   31.47  40.0    35.44   30.58     0.24      0.68    N/A    1.31  5.69   0.0 GIF
   20191026 05:45:00       GMI 85-92GHz   35.46   31.47  40.0    35.45   30.47     0.24      0.68    N/A    1.31  5.47   0.0 GIF
   20191026 06:15:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.44   30.35     0.26      0.73    N/A    1.19  5.79   0.0 GIF
   20191026 06:45:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.44   30.24     0.26      0.73    N/A    1.19  5.59   0.0 GIF
   20191026 07:15:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.44   30.12     0.26      0.73    N/A    1.19  5.38   0.0 GIF
   20191026 07:45:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.44   30.00     0.26      0.73    N/A    1.19  5.17   0.0 GIF
   20191026 08:15:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.44   29.87     0.26      0.73    N/A    1.19  4.97   0.0 GIF
   20191026 08:45:00     AMSR2 85-92GHz   35.48   30.92  40.0    35.30   30.35     0.26      0.73    N/A    1.19  4.77   0.0 GIF
   20191026 09:15:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.31   30.24     0.34      0.97    N/A    0.70  4.80   0.0 GIF
   20191026 09:45:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.34   30.12     0.34      0.97    N/A    0.70  4.70   0.0 GIF
   20191026 10:15:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.38   29.98     0.34      0.97    N/A    0.70  4.59   0.0 GIF
   20191026 10:45:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.43   29.83     0.34      0.97    N/A    0.70  4.47   0.0 GIF
   20191026 11:15:00  METEOSAT   NearIR   35.48   29.67  40.0    35.08   29.33     0.20      0.57   0.05    1.00  8.33 100.0 GIF
   20191026 11:45:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.54   29.51     0.34      0.97    N/A    0.70  4.22   0.0 GIF
   20191026 12:15:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.60   29.33     0.34      0.97    N/A    0.70  4.09   0.0 GIF
   20191026 12:45:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.67   29.15     0.34      0.97    N/A    0.70  3.96   0.0 GIF
   20191026 13:15:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.75   28.98     0.34      0.97    N/A    0.70  3.83   0.0 GIF
   20191026 13:45:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.81   28.78     0.34      0.97    N/A    0.70  3.70   0.0 GIF
   20191026 14:15:00    SSMI18 85-92GHz   35.27   30.46  40.0    35.89   28.59     0.34      0.97    N/A    0.70  3.58   0.0 GIF
   20191026 14:45:00  METEOSAT   NearIR   35.17   28.18  45.0    35.32   28.03     0.48      1.35   0.05    0.45  3.53  60.0 GIF
   20191026 15:15:00  METEOSAT   NearIR   35.23   28.02  45.0    35.40   27.86     0.35      1.00   0.05    0.59  4.73  69.9 GIF
   20191026 15:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.30   27.85     0.15      0.41    N/A    2.71 10.96   0.0 GIF
   20191026 16:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.38   27.69     0.15      0.41    N/A    2.71 10.48   0.0 GIF
   20191026 16:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.47   27.52     0.15      0.41    N/A    2.71  9.97   0.0 GIF
   20191026 17:15:00  METEOSAT       IR   35.56   27.35  45.0    35.63   26.95     0.17      0.48   0.05    1.21  9.88 100.0 GIF
   20191026 17:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.67   27.19     0.15      0.41    N/A    2.71  8.91   0.0 GIF
   20191026 18:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.78   27.02     0.15      0.41    N/A    2.71  8.40   0.0 GIF
   20191026 18:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    35.91   26.87     0.15      0.41    N/A    2.71  7.91   0.0 GIF
   20191026 19:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.03   26.71     0.15      0.41    N/A    2.71  7.44   0.0 GIF
   20191026 19:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.16   26.54     0.15      0.41    N/A    2.71  7.01   0.0 GIF
   20191026 20:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.29   26.38     0.15      0.41    N/A    2.71  6.61   0.0 GIF
   20191026 20:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.25   25.69     0.15      0.41    N/A    2.71  6.23   0.0 GIF
   20191026 21:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.37   25.52     0.15      0.41    N/A    2.71  5.88   0.0 GIF
   20191026 21:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.50   25.35     0.15      0.41    N/A    2.71  5.55   0.0 GIF
   20191026 22:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.63   25.18     0.15      0.41    N/A    2.71  5.25   0.0 GIF
   20191026 22:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.77   25.00     0.15      0.41    N/A    2.71  4.97   0.0 GIF
   20191026 23:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    36.92   24.83     0.15      0.41    N/A    2.71  4.72   0.0 GIF
   20191026 23:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    37.07   24.65     0.15      0.41    N/A    2.71  4.48   0.0 GIF
   20191027 00:15:00     AMSR2 85-92GHz   35.18   28.15  45.0    37.23   24.48     0.15      0.41    N/A    2.71  4.25   0.0 GIF
   20191027 00:45:00     AMSR2 85-92GHz   35.18   28.15  45.0    37.40   24.31     0.15      0.41    N/A    2.71  4.05   0.0 GIF
   20191027 01:15:00       GMI 85-92GHz   37.48   24.18  50.0    37.54   24.11     0.28      0.79    N/A    1.03  5.99   0.0 GIF
   20191027 01:45:00       GMI 85-92GHz   37.48   24.18  50.0    37.72   23.94     0.28      0.79    N/A    1.03  5.90   0.0 GIF
   20191027 02:15:00       GMI 85-92GHz   37.48   24.18  50.0    37.90   23.78     0.28      0.79    N/A    1.03  5.77   0.0 GIF
   20191027 02:45:00       GMI 85-92GHz   37.48   24.18  50.0    38.12   22.70     0.28      0.79    N/A    1.03  5.62   0.0 GIF
   20191027 03:15:00       GMI 85-92GHz   37.48   24.18  50.0    38.29   22.52     0.28      0.79    N/A    1.03  5.46   0.0 GIF
   20191027 03:45:00       GMI 85-92GHz   37.48   24.18  50.0    38.45   22.34     0.28      0.79    N/A    1.03  5.28   0.0 GIF
   20191027 04:15:00       GMI 85-92GHz   37.48   24.18  50.0    38.61   22.17     0.28      0.79    N/A    1.03  5.11   0.0 GIF
   20191027 04:45:00       GMI 85-92GHz   37.48   24.18  50.0    38.78   22.01     0.28      0.79    N/A    1.03  4.93   0.0 GIF
   20191027 05:15:00     AMSR2 85-92GHz   38.16   22.64  55.0    38.93   21.85     0.15      0.43    N/A    2.56  9.14   0.0 GIF
   20191027 05:45:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.10   21.70     0.15      0.43    N/A    2.56  8.65   0.0 GIF
   20191027 06:15:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.26   21.55     0.15      0.43    N/A    2.56  8.17   0.0 GIF
   20191027 06:45:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.41   21.40     0.15      0.43    N/A    2.56  7.71   0.0 GIF
   20191027 07:15:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.57   21.27     0.15      0.43    N/A    2.56  7.27   0.0 GIF
   20191027 07:45:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.73   21.15     0.15      0.43    N/A    2.56  6.86   0.0 GIF
   20191027 08:15:00     AMSR2 85-92GHz   38.16   22.64  55.0    39.89   21.02     0.15      0.43    N/A    2.56  6.47   0.0 GIF
   20191027 08:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    40.61   20.08     0.23      0.65    N/A    1.42  7.05   0.0 GIF
   20191027 09:15:00  METEOSAT       IR   40.79   19.93  60.0    40.87   19.60     0.21      0.61   0.05    1.00  7.84 100.0 GIF
   20191027 09:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    40.98   19.78     0.23      0.65    N/A    1.42  6.63   0.0 GIF
   20191027 10:15:00    SSMI18 85-92GHz   40.27   20.34  60.0    41.16   19.62     0.23      0.65    N/A    1.42  6.39   0.0 GIF
   20191027 10:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    41.36   19.50     0.23      0.65    N/A    1.42  6.14   0.0 GIF
   20191027 11:15:00    SSMI18 85-92GHz   40.27   20.34  60.0    41.54   19.33     0.23      0.65    N/A    1.42  5.89   0.0 GIF
   20191027 11:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    41.73   19.20     0.23      0.65    N/A    1.42  5.65   0.0 GIF
   20191027 12:15:00    SSMI18 85-92GHz   40.27   20.34  60.0    41.90   19.02     0.23      0.65    N/A    1.42  5.41   0.0 GIF
   20191027 12:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    42.08   18.88     0.23      0.65    N/A    1.42  5.17   0.0 GIF
   20191027 13:15:00    SSMI18 85-92GHz   40.27   20.34  60.0    42.26   18.75     0.23      0.65    N/A    1.42  4.95   0.0 GIF
   20191027 13:45:00    SSMI18 85-92GHz   40.27   20.34  60.0    42.44   18.61     0.23      0.65    N/A    1.42  4.73   0.0 GIF
   20191027 14:15:00    SSMI18 85-92GHz   40.27   20.34  60.0    42.61   18.48     0.23      0.65    N/A    1.42  4.53   0.0 GIF
   20191027 14:45:00     AMSR2 85-92GHz   42.48   18.48  60.0    42.72   18.34     0.18      0.51    N/A    2.01  8.92   0.0 GIF
   20191027 15:15:00     AMSR2 85-92GHz   42.48   18.48  60.0    42.88   18.27     0.18      0.51    N/A    2.01  8.62   0.0 GIF
   20191027 15:45:00  METEOSAT       IR   43.03   18.18  60.0    43.35   17.83     0.16      0.46   0.10    1.25 10.31 100.0 GIF
   20191027 16:15:00     AMSR2 85-92GHz   42.48   18.48  60.0    43.18   18.11     0.18      0.51    N/A    2.01  7.92   0.0 GIF
   20191027 16:45:00     AMSR2 85-92GHz   42.48   18.48  60.0    43.34   18.02     0.18      0.51    N/A    2.01  7.55   0.0 GIF
   20191027 17:15:00     AMSR2 85-92GHz   42.48   18.48  60.0    43.49   17.95     0.18      0.51    N/A    2.01  7.19   0.0 GIF
   20191027 17:45:00     AMSR2 85-92GHz   42.48   18.48  60.0    43.64   17.87     0.18      0.51    N/A    2.01  6.83   0.0 GIF
   20191027 18:15:00  METEOSAT   NearIR   43.78   17.79  60.0    44.16   17.37     0.23      0.64   0.10    0.89  7.39 100.0 GIF
   20191027 18:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    43.93   17.72     0.21      0.60    N/A    1.59  7.80   0.0 GIF
   20191027 19:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.07   17.65     0.21      0.60    N/A    1.59  7.63   0.0 GIF
   20191027 19:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.21   17.59     0.21      0.60    N/A    1.59  7.41   0.0 GIF
   20191027 20:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.35   17.53     0.21      0.60    N/A    1.59  7.15   0.0 GIF
   20191027 20:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.65   17.22     0.21      0.60    N/A    1.59  8.17   0.0 GIF
   20191027 21:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.75   17.19     0.21      0.60    N/A    1.59  7.78   0.0 GIF
   20191027 21:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    44.86   17.16     0.21      0.60    N/A    1.59  7.39   0.0 GIF
   20191027 22:15:00  METEOSAT   NearIR   44.97   17.12  70.0    45.29   17.23     0.21      0.60   0.20    0.75  7.87  75.6 GIF
   20191027 22:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    45.08   17.10     0.21      0.60    N/A    1.59  6.65   0.0 GIF
   20191027 23:15:00  METEOSAT   NearIR   45.18   17.06  70.0    45.56   17.24     0.25      0.70   0.25    0.65  6.74  64.3 GIF
   20191027 23:45:00  METEOSAT   NearIR   45.29   17.03  70.0    45.66   17.28     0.26      0.74   0.25    0.62  6.40  62.1 GIF
   20191028 00:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    45.40   17.01     0.21      0.60    N/A    1.59  5.67   0.0 GIF
   20191028 00:45:00  METEOSAT   NearIR   45.50   16.98  70.0    45.87   17.30     0.23      0.66   0.30    0.69  7.22  63.5 GIF
   20191028 01:15:00  METEOSAT   NearIR   45.60   16.95  70.0    45.88   17.38     0.24      0.68   0.30    0.67  6.95  65.8 GIF
   20191028 01:45:00  METEOSAT       IR   45.71   16.93  70.0    45.96   17.43     0.31      0.88   0.30    0.61  5.42  61.2 GIF
   20191028 02:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    45.81   16.94     0.21      0.60    N/A    1.59  4.62   0.0 GIF
   20191028 02:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    45.97   17.10     0.21      0.60    N/A    1.59  4.00   0.0 GIF
   20191028 03:15:00  METEOSAT   NearIR   46.03   17.10  60.0    46.13   17.46     0.43      1.21   0.40    0.49  3.92  54.3 GIF
   20191028 03:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    46.10   17.14     0.21      0.60    N/A    1.59  3.66   0.0 GIF
   20191028 04:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    46.16   17.13     0.21      0.60    N/A    1.59  3.51   0.0 GIF
   20191028 04:45:00    SSMI18 85-92GHz   43.84   17.76  60.0    46.22   17.12     0.21      0.60    N/A    1.59  3.37   0.0 GIF
   20191028 05:15:00    SSMI18 85-92GHz   43.84   17.76  60.0    46.28   17.11     0.21      0.60    N/A    1.59  3.23   0.0 GIF
   20191028 05:45:00     AMSR2 85-92GHz   46.07   17.10  60.0    46.33   17.08     0.44      1.25    N/A    0.35  3.55   0.0 GIF
   20191028 06:15:00     AMSR2 85-92GHz   46.07   17.10  60.0    46.39   17.07     0.44      1.25    N/A    0.35  3.48   0.0 GIF
   20191028 06:45:00     AMSR2 85-92GHz   46.07   17.10  60.0    46.45   17.07     0.44      1.25    N/A    0.35  3.40   0.0 GIF
   20191028 07:15:00     AMSR2 85-92GHz   46.07   17.10  60.0    46.50   17.06     0.44      1.25    N/A    0.35  3.32   0.0 GIF
   20191028 07:45:00     AMSR2 85-92GHz   46.07   17.10  60.0    46.56   17.06     0.44      1.25    N/A    0.35  3.24   0.0 GIF
   20191028 08:15:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.61   17.05     0.41      1.16    N/A    0.45  4.10   0.0 GIF
   20191028 08:45:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.58   17.50     0.41      1.16    N/A    0.45  4.07   0.0 GIF
   20191028 09:15:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.62   17.50     0.41      1.16    N/A    0.45  4.01   0.0 GIF
   20191028 09:45:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.65   17.50     0.41      1.16    N/A    0.45  3.94   0.0 GIF
   20191028 10:15:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.69   17.50     0.41      1.16    N/A    0.45  3.86   0.0 GIF
   20191028 10:45:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.73   17.50     0.41      1.16    N/A    0.45  3.77   0.0 GIF
   20191028 11:15:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.77   17.50     0.41      1.16    N/A    0.45  3.68   0.0 GIF
   20191028 11:45:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.80   17.50     0.41      1.16    N/A    0.45  3.59   0.0 GIF
   20191028 12:15:00    SSMI18 85-92GHz   46.60   17.05  60.0    46.84   17.50     0.41      1.16    N/A    0.45  3.50   0.0 GIF
 
 
Key:

  - Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 30-minute window, it is put in bold.

  - Source/sensor: Satellite source of the analyzed image.

  - Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

  - ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

  - Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

  - 50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

  - 95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

  - Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

  - % cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

 
Links to related versions:
  - Track Plot
  - Summary table
  - Intensity Estimation