Tropical Storm 18E


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.1
 

                                         -------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    .
   20260927 09:30:20   GOES-19     SWIR   12.22  -99.15  30.0    12.24  -99.12    1.52      0.15     N/A    0.40  3.12   0.0 PNG
   20260927 10:10:20   GOES-19     SWIR   12.24  -99.20  30.0    12.19  -99.28    2.83      0.20     N/A    0.24  1.68   0.0 PNG
   20260927 10:30:20   GOES-19     SWIR   12.26  -99.24  30.0    12.21  -99.37    4.94      0.15     N/A    0.15  0.96   0.0 PNG
   20260927 11:00:20   GOES-19       IR   12.28  -99.28  30.0    12.53 -100.00    3.44      0.20    1.22    0.35  1.38  49.9 PNG
   20260927 11:40:20   GOES-19     SWIR   12.30  -99.32  30.0    12.10  -99.25    1.47      0.30     N/A    0.41  3.22   0.0 PNG
   20260927 12:00:20   GOES-19     SWIR   12.32  -99.36  30.0    12.22  -99.36    1.67      0.40     N/A    0.37  2.84   0.0 PNG
   20260927 12:30:20   GOES-19     SWIR   12.35  -99.39  30.0    12.50  -99.44    3.20      0.05     N/A    0.21  1.48   0.0 PNG
   20260927 13:00:20   GOES-19     SWIR   12.37  -99.42  30.0    12.17  -99.45    2.06      0.30     N/A    0.31  2.30   0.0 PNG
   20260927 13:40:20   GOES-19     SWIR   12.40  -99.45  30.0    12.00  -99.78    2.66      0.05     N/A    0.25  1.79   0.0 PNG
   20260927 14:00:20   GOES-19     SWIR   12.43  -99.48  30.0    12.08  -99.68    2.73      0.20     N/A    0.24  1.74   0.0 PNG
   20260927 14:30:20   GOES-19       IR   12.46  -99.50  30.0    11.96  -99.81    9.49      0.05    3.36    0.15  0.50  44.1 PNG
   20260927 15:00:20   GOES-19      Vis   12.70  -98.60  30.0    12.65  -98.60    2.31      0.40     N/A    0.20  2.05   0.0 PNG
   20260927 15:40:20       GMI    89GHz   12.72  -98.63  30.0    12.77  -98.73    0.74      0.90    0.26    1.15  6.39  12.6 PNG
   20260927 16:00:20       GMI    89GHz   12.72  -98.63  30.0    12.78  -98.76    0.74      0.90    0.26    1.15  6.33  12.6 PNG
   20260927 16:30:20       GMI    89GHz   12.72  -98.63  30.0    12.80  -98.79    0.74      0.90    0.26    1.15  6.20  12.6 PNG
   20260927 17:10:20   GOES-19      Vis   12.77  -98.73  30.0    13.07  -99.07    0.46      0.10     N/A    0.77 10.28   0.0 PNG
   20260927 17:40:20   GOES-19      Vis   12.78  -98.77  30.0    13.03  -99.18    0.45      0.20     N/A    0.79 10.54   0.0 PNG
   20260927 18:10:20   GOES-19      Vis   12.80  -98.80  30.0    13.00  -99.31    0.74      0.20     N/A    0.50  6.43   0.0 PNG
   20260927 18:40:20   GOES-19      Vis   12.82  -98.83  30.0    12.97  -99.50    0.70      0.20     N/A    0.52  6.73   0.0 PNG
   20260927 19:10:20   GOES-19      Vis   12.83  -98.87  30.0    12.93  -99.64    0.91      0.15     N/A    0.42  5.21   0.0 PNG
   20260927 19:40:20   GOES-19      Vis   12.85  -98.90  35.0    13.00  -99.31    0.61      0.05     N/A    0.59  7.74   0.0 PNG
   20260927 20:10:20   GOES-19      Vis   12.87  -98.93  35.0    12.97  -99.40    0.88      0.15     N/A    0.43  5.38   0.0 PNG
   20260927 20:40:20   GOES-19      Vis   12.88  -98.97  35.0    13.06  -99.46    0.75      0.05     N/A    0.50  6.33   0.0 PNG
   20260927 21:10:20   GOES-19      Vis   12.60  -99.10  35.0    12.90  -99.54    0.90      0.15     N/A    0.42  5.27   0.0 PNG
   20260927 21:40:20   GOES-19      Vis   12.58  -99.14  35.0    13.13  -99.75    0.67      0.05     N/A    0.55  7.12   0.0 PNG
   20260927 22:10:20   GOES-19      Vis   12.57  -99.17  35.0    13.12  -99.89    0.92      0.05     N/A    0.42  5.18   0.0 PNG
   20260927 22:40:20       GMI    89GHz   12.72  -98.63  30.0    12.67  -99.32    0.74      0.90    0.26    1.15  3.93  12.6 PNG
   20260927 23:10:20       GMI    89GHz   12.72  -98.63  30.0    12.69  -99.36    0.74      0.90    0.26    1.15  3.77  12.6 PNG
   20260927 23:40:20  SSMISF18    89GHz   12.58  -99.28  35.0    12.98 -100.15    0.77      1.10    0.27    1.07  6.15  19.7 PNG
   20260928 00:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.08 -100.20    0.77      1.10    0.27    1.07  5.97  19.7 PNG
   20260928 01:10:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.14 -100.29    0.77      1.10    0.27    1.07  5.60  19.7 PNG
   20260928 01:40:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.17 -100.34    0.77      1.10    0.27    1.07  5.42  19.7 PNG
   20260928 02:10:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.21 -100.38    0.77      1.10    0.27    1.07  5.24  19.7 PNG
   20260928 02:40:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.24 -100.43    0.77      1.10    0.27    1.07  5.05  19.7 PNG
   20260928 03:10:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.30 -100.69    0.77      1.10    0.27    1.07  4.86  19.7 PNG
   20260928 03:40:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.32 -100.75    0.77      1.10    0.27    1.07  4.68  19.7 PNG
   20260928 04:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.33 -100.78    0.77      1.10    0.27    1.07  4.56  19.7 PNG
   20260928 04:40:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.36 -100.86    0.77      1.10    0.27    1.07  4.33  19.7 PNG
   20260928 05:10:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.37 -100.92    0.77      1.10    0.27    1.07  4.16  19.7 PNG
   20260928 05:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.38 -100.96    0.77      1.10    0.27    1.07  4.05  19.7 PNG
   20260928 06:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.41 -101.01    0.77      1.10    0.27    1.07  3.89  19.7 PNG
   20260928 06:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.42 -101.08    0.77      1.10    0.27    1.07  3.74  19.7 PNG
   20260928 07:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.45 -101.13    0.77      1.10    0.27    1.07  3.60  19.7 PNG
   20260928 07:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.47 -101.19    0.77      1.10    0.27    1.07  3.46  19.7 PNG
   20260928 08:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.48 -101.26    0.77      1.10    0.27    1.07  3.33  19.7 PNG
   20260928 08:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.51 -101.32    0.77      1.10    0.27    1.07  3.21  19.7 PNG
   20260928 09:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.80 -101.27    0.77      1.10    0.27    1.07  3.09  19.7 PNG
   20260928 09:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.82 -101.35    0.77      1.10    0.27    1.07  2.97  19.7 PNG
   20260928 10:00:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.84 -101.42    0.77      1.10    0.27    1.07  2.87  19.7 PNG
   20260928 10:30:20  SSMISF18    89GHz   12.58  -99.28  35.0    13.88 -101.48    0.77      1.10    0.27    1.07  2.77  19.7 PNG
   20260928 11:00:22  SSMISF18    89GHz   12.58  -99.28  35.0    13.90 -101.56    0.77      1.10    0.27    1.07  2.67  19.7 PNG
   20260928 11:30:22   GOES-19     SWIR   13.56 -100.74  40.0    13.19 -100.31    3.13      0.05     N/A    0.22  1.51   0.0 PNG
   20260928 12:00:20   GOES-19     SWIR   13.59 -100.81  40.0    14.54  -99.01    2.38      0.40     N/A    0.27  1.99   0.0 PNG
   20260928 12:30:20   GOES-19       IR   13.62 -100.88  40.0    14.82 -101.86    6.03      0.30    2.13    0.29  0.79  40.8 PNG
   20260928 13:00:20   GOES-19       IR   13.65 -100.96  45.0    15.02 -102.40    2.00      0.05    0.71    0.45  2.37  88.3 PNG
   20260928 13:30:20   GOES-19       IR   13.68 -101.03  45.0    14.48 -102.08    9.49      0.45    3.36    0.15  0.50  12.4 PNG
   20260928 14:00:20   GOES-19     SWIR   13.70 -101.10  45.0    14.58 -101.79    4.28      0.45     N/A    0.17  1.11   0.0 PNG
   20260928 14:30:20   GOES-19       IR   13.73 -101.17  45.0    14.81 -102.07    9.49      0.30    3.36    0.17  0.50  12.5 PNG
   20260928 15:10:20  SSMISF18    89GHz   13.80 -101.20  45.0    13.80 -101.05    0.77      1.00    0.27    1.07  6.14  15.1 PNG
   20260928 15:30:20  SSMISF18    89GHz   13.80 -101.20  45.0    13.84 -101.12    0.77      1.00    0.27    1.07  4.97  15.1 PNG
   20260928 16:00:20  SSMISF18    89GHz   13.80 -101.20  45.0    13.87 -101.20    0.77      1.00    0.27    1.07  4.78  15.1 PNG
   20260928 16:30:20  SSMISF18    89GHz   13.80 -101.20  45.0    13.91 -101.27    0.77      1.00    0.27    1.07  4.60  15.1 PNG
   20260928 17:00:20  SSMISF18    89GHz   13.80 -101.20  45.0    13.95 -101.35    0.77      1.00    0.27    1.07  4.42  15.1 PNG
   20260928 17:40:20  SSMISF18    89GHz   13.80 -101.20  45.0    14.00 -101.45    0.77      1.00    0.27    1.07  4.20  15.1 PNG
   20260928 18:00:20  SSMISF18    89GHz   13.80 -101.20  45.0    14.02 -101.50    0.77      1.00    0.27    1.07  4.09  15.1 PNG
   20260928 18:30:20  SSMISF18    89GHz   13.80 -101.20  45.0    14.06 -101.58    0.77      1.00    0.27    1.07  3.93  15.1 PNG
   20260928 19:10:20  SSMISF18    89GHz   13.80 -101.20  45.0    14.11 -101.68    0.77      1.00    0.27    1.07  3.73  15.1 PNG
   20260928 19:30:20   GOES-19      Vis   14.13 -101.85  45.0    15.03 -100.02    1.02      0.20     N/A    0.38  4.65   0.0 PNG
   20260928 20:00:20   GOES-19      Vis   14.17 -101.93  45.0    15.17 -100.15    0.64      0.45     N/A    0.57  7.45   0.0 PNG
   20260928 20:40:20   GOES-19     SWIR   14.20 -102.01  45.0    13.25 -101.60    1.04      0.30     N/A    0.57  4.58   0.0 PNG
 
 
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