Tropical Storm 19L


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    .
   20210924 21:10:20    GOES16   NearIR   34.52   64.52  40.0    35.52   63.58     1.24      3.49   0.10    0.20  1.36  47.9 GIF
   20210924 21:40:20    GOES16   NearIR   34.58   64.59  40.0    35.73   63.50     0.75      2.13   0.10    0.30  2.23  60.1 GIF
   20210924 22:10:20    GOES16       IR   34.64   64.66  40.0    35.19   64.66     3.36      9.49   0.05    0.11  0.50  47.1 GIF
   20210924 22:40:20    GOES16   NearIR   34.70   64.72  40.0    34.80   64.94     1.76      4.98   0.15    0.15  0.95  49.1 GIF
   20210924 23:20:20    GOES16   NearIR   34.77   64.81  40.0    35.05   65.33     0.62      1.77   0.40    0.35  2.69  61.8 GIF
   20210924 23:40:20    GOES16       IR   34.81   64.85  40.0    35.03   65.28     3.36      9.49   0.40    0.12  0.50  44.1 GIF
   20210925 00:10:20    GOES16   NearIR   34.86   64.91  40.0    35.58   63.06     0.27      0.76   0.10    0.77  6.28  98.0 GIF
   20210925 00:40:20    GOES16       IR   34.91   64.97  40.0    35.26   63.08     0.54      1.52   0.35    0.53  3.13  79.1 GIF
   20210925 01:10:20    SSMI17 85-92GHz   34.90   64.97  40.0    34.41   64.96     0.63      1.77    N/A    0.01  2.65   0.0 GIF
   20210925 01:40:20    SSMI17 85-92GHz   34.90   64.97  40.0    34.46   65.02     0.63      1.77    N/A    0.01  2.62   0.0 GIF
   20210925 02:10:20    SSMI17 85-92GHz   34.90   64.97  40.0    34.51   65.08     0.63      1.77    N/A    0.01  2.59   0.0 GIF
   20210925 02:50:20    SSMI17 85-92GHz   34.90   64.97  40.0    33.74   65.31     0.63      1.77    N/A    0.01  2.55   0.0 GIF
   20210925 03:20:20    GOES16   NearIR   34.32   65.43  40.0    34.30   65.37     0.49      1.37   0.05    0.44  3.46  57.3 GIF
   20210925 03:40:20    GOES16   NearIR   34.35   65.46  40.0    34.35   65.43     0.45      1.28   0.05    0.47  3.70  57.3 GIF
   20210925 04:20:20    GOES16   NearIR   34.40   65.50  40.0    34.67   65.53     0.62      1.74   0.10    0.36  2.72  48.6 GIF
   20210925 04:50:20    GOES16   NearIR   34.44   65.53  40.0    34.31   65.50     0.46      1.30   0.50    0.46  3.66  53.2 GIF
   20210925 05:20:20    SSMI17 85-92GHz   34.90   64.97  40.0    33.93   65.48     0.63      1.77    N/A    0.01  2.33   0.0 GIF
   20210925 05:50:20    GOES16   NearIR   34.53   65.57  40.0    34.36   65.57     0.51      1.43   0.15    0.42  3.31  49.3 GIF
   20210925 06:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.53   65.34     0.33      0.92    N/A    0.77  5.14   0.0 GIF
   20210925 06:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.58   65.35     0.33      0.92    N/A    0.77  5.07   0.0 GIF
   20210925 07:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.63   65.35     0.33      0.92    N/A    0.77  4.97   0.0 GIF
   20210925 07:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.69   65.36     0.33      0.92    N/A    0.77  4.86   0.0 GIF
   20210925 08:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.74   65.35     0.33      0.92    N/A    0.77  4.73   0.0 GIF
   20210925 08:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.44   65.26     0.33      0.92    N/A    0.77  4.60   0.0 GIF
   20210925 09:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.47   65.26     0.33      0.92    N/A    0.77  4.46   0.0 GIF
   20210925 09:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.50   65.25     0.33      0.92    N/A    0.77  4.32   0.0 GIF
   20210925 10:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.53   65.25     0.33      0.92    N/A    0.77  4.18   0.0 GIF
   20210925 10:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.57   65.24     0.33      0.92    N/A    0.77  4.04   0.0 GIF
   20210925 11:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.61   65.24     0.33      0.92    N/A    0.77  3.91   0.0 GIF
   20210925 11:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.65   65.23     0.33      0.92    N/A    0.77  3.77   0.0 GIF
   20210925 12:20:20       GMI 85-92GHz   34.56   65.57  40.0    34.69   65.22     0.33      0.92    N/A    0.77  3.64   0.0 GIF
   20210925 12:50:20       GMI 85-92GHz   34.56   65.57  40.0    34.74   65.22     0.33      0.92    N/A    0.77  3.52   0.0 GIF
   20210925 13:10:20       GMI 85-92GHz   34.56   65.57  40.0    34.78   65.21     0.33      0.92    N/A    0.77  3.44   0.0 GIF
   20210925 13:40:20       GMI 85-92GHz   34.56   65.57  40.0    34.83   65.20     0.33      0.92    N/A    0.77  3.32   0.0 GIF
   20210925 14:10:20       GMI 85-92GHz   34.56   65.57  40.0    34.88   65.18     0.33      0.92    N/A    0.77  3.20   0.0 GIF
   20210925 14:50:20    GOES16      Vis   34.29   65.01  35.0    34.22   65.13     0.29      0.81   0.30    0.46  5.87  67.9 GIF
   20210925 15:10:20    GOES16      Vis   34.31   64.99  35.0    34.23   65.08     0.31      0.86   0.30    0.44  5.49  69.7 GIF
   20210925 15:50:20    GOES16      Vis   34.34   64.95  35.0    34.19   64.95     0.30      0.85   0.50    0.45  5.61  74.1 GIF
   20210925 16:10:20    GOES16      Vis   34.36   64.93  35.0    34.26   64.90     0.25      0.69   0.45    0.53  6.84  77.3 GIF
   20210925 16:40:20    GOES16      Vis   34.40   64.90  35.0    34.33   64.87     0.26      0.73   0.15    0.51  6.47  75.0 GIF
   20210925 17:20:20    GOES16      Vis   34.46   64.86  35.0    34.33   64.80     0.25      0.71   0.50    0.52  6.65  83.2 GIF
   20210925 17:40:20    GOES16      Vis   34.49   64.84  35.0    34.34   64.78     0.26      0.75   0.15    0.50  6.34  79.0 GIF
   20210925 18:20:20     AMSR2 85-92GHz   34.42   64.88  35.0    34.21   64.56     0.32      0.91    N/A    0.78  4.97   0.0 GIF
   20210925 18:50:20     AMSR2 85-92GHz   34.42   64.88  35.0    34.27   64.53     0.32      0.91    N/A    0.78  4.85   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