Tropical Storm 18E


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    .
   20221009 20:40:20    GOES16      Vis   12.39   86.83  45.0    12.31   87.01     0.32      0.91   0.45    0.42  5.19  61.6 GIF
   20221009 21:10:20    GOES16      Vis   12.41   86.93  45.0    12.33   87.09     0.32      0.90   0.15    0.42  5.29  58.0 GIF
   20221009 21:40:20    GOES16       IR   12.42   87.04  45.0    12.02   87.22     1.78      5.03   0.05    0.30  0.94  49.0 GIF
   20221009 22:10:20    GOES16       IR   12.44   87.14  45.0    11.89   87.37     1.61      4.54   0.05    0.32  1.05  55.4 GIF
   20221009 22:40:20    GOES16   NearIR   12.46   87.24  45.0    12.36   87.62     2.12      6.00   0.10    0.13  0.79  23.8 GIF
   20221009 23:10:20    GOES16       IR   12.48   87.34  45.0    11.51   87.72     3.36      9.49   0.45    0.22  0.50  47.5 GIF
   20221009 23:40:20    SSMI16 85-92GHz   12.48   87.35  45.0    12.70   87.54     0.38      1.07    N/A    0.55  4.40   0.0 GIF
   20221010 00:10:20    SSMI17 85-92GHz   12.51   87.49  45.0    12.87   87.59     0.25      0.72    N/A    1.22  6.60   0.0 GIF
   20221010 00:40:20    SSMI17 85-92GHz   12.51   87.49  45.0    12.89   87.69     0.25      0.72    N/A    1.22  6.48   0.0 GIF
   20221010 01:10:20    SSMI17 85-92GHz   12.51   87.49  45.0    12.91   87.80     0.25      0.72    N/A    1.22  6.32   0.0 GIF
   20221010 01:40:20    SSMI17 85-92GHz   12.51   87.49  45.0    12.93   87.90     0.25      0.72    N/A    1.22  6.14   0.0 GIF
   20221010 02:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    12.96   88.03     0.25      0.72    N/A    1.22  5.87   0.0 GIF
   20221010 02:40:20    GOES16       IR   12.78   88.04  40.0    13.13   88.45     0.27      0.77   0.05    0.83  6.19 100.0 GIF
   20221010 03:10:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.15   88.19     0.25      0.72    N/A    1.22  5.52   0.0 GIF
   20221010 03:40:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.19   88.28     0.25      0.72    N/A    1.22  5.30   0.0 GIF
   20221010 04:10:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.22   88.37     0.25      0.72    N/A    1.22  5.10   0.0 GIF
   20221010 04:50:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.26   88.51     0.25      0.72    N/A    1.22  4.82   0.0 GIF
   20221010 05:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.30   88.60     0.25      0.72    N/A    1.22  4.63   0.0 GIF
   20221010 05:50:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.34   88.70     0.25      0.72    N/A    1.22  4.44   0.0 GIF
   20221010 06:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.36   88.81     0.25      0.72    N/A    1.22  4.26   0.0 GIF
   20221010 06:50:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.40   88.92     0.25      0.72    N/A    1.22  4.08   0.0 GIF
   20221010 07:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.44   89.02     0.25      0.72    N/A    1.22  3.92   0.0 GIF
   20221010 07:50:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.45   89.14     0.25      0.72    N/A    1.22  3.76   0.0 GIF
   20221010 08:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.49   89.25     0.25      0.72    N/A    1.22  3.61   0.0 GIF
   20221010 08:50:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.54   89.37     0.25      0.72    N/A    1.22  3.47   0.0 GIF
   20221010 09:20:20    SSMI17 85-92GHz   12.51   87.49  45.0    13.77   89.31     0.25      0.72    N/A    1.22  3.33   0.0 GIF
   20221010 09:50:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.46   89.54     0.23      0.66    N/A    1.38  6.57   0.0 GIF
   20221010 10:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.50   89.62     0.23      0.66    N/A    1.38  6.34   0.0 GIF
   20221010 10:50:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.55   89.71     0.23      0.66    N/A    1.38  6.10   0.0 GIF
   20221010 11:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.59   89.79     0.23      0.66    N/A    1.38  5.86   0.0 GIF
   20221010 11:50:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.63   89.88     0.23      0.66    N/A    1.38  5.62   0.0 GIF
   20221010 12:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.68   89.98     0.23      0.66    N/A    1.38  5.39   0.0 GIF
   20221010 12:40:20    GOES16       IR   13.71   89.83  35.0    11.84   90.01     0.24      0.68   0.10    0.91  6.94  98.1 GIF
   20221010 13:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.77   90.17     0.23      0.66    N/A    1.38  4.94   0.0 GIF
   20221010 13:50:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.82   90.27     0.23      0.66    N/A    1.38  4.73   0.0 GIF
   20221010 14:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    13.87   90.37     0.23      0.66    N/A    1.38  4.52   0.0 GIF
   20221010 14:50:20     AMSR2 85-92GHz   13.33   89.06  35.0    14.06   90.49     0.23      0.66    N/A    1.38  4.33   0.0 GIF
   20221010 15:20:20     AMSR2 85-92GHz   13.33   89.06  35.0    14.15   90.58     0.23      0.66    N/A    1.38  4.15   0.0 GIF
   20221010 15:40:20     AMSR2 85-92GHz   13.33   89.06  35.0    14.19   90.65     0.23      0.66    N/A    1.38  4.03   0.0 GIF
   20221010 16:10:20    SSMI17 85-92GHz   13.80   90.00  35.0    14.37   90.64     0.39      1.11    N/A    0.50  3.90   0.0 GIF
   20221010 16:50:20    SSMI17 85-92GHz   13.80   90.00  35.0    14.46   90.77     0.39      1.11    N/A    0.50  3.77   0.0 GIF
   20221010 17:20:20    SSMI17 85-92GHz   13.80   90.00  35.0    14.54   90.86     0.39      1.11    N/A    0.50  3.67   0.0 GIF
   20221010 17:50:20    GOES16      Vis   14.51   90.85  35.0    14.09   91.14     0.28      0.80   0.50    0.47  5.91  58.0 GIF
   20221010 18:10:20    GOES16      Vis   14.56   90.92  35.0    13.98   91.36     0.29      0.81   0.05    0.46  5.86  52.8 GIF
   20221010 18:40:20    SSMI17 85-92GHz   13.80   90.00  35.0    14.72   91.11     0.39      1.11    N/A    0.50  3.40   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