Tropical Storm 13E

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.2.1
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20170818 134700 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  14.8  116.3   14.8  116.3   14.6  116.3 Analysis Plot     
     20170818 232200   -3.6      N/A  11.0% 133.32    3.61  30.0 SSMI16  14.8  118.1   14.8  118.1   14.6  117.6 Analysis Plot     
     20170819 021047   -0.0      N/A   N/A     N/A    0.00  35.0    GMI  15.0  118.9   15.0  118.9   15.0  119.1 Analysis Plot     
     20170819 023900 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  15.0  118.8   15.0  118.8   14.2  118.6 Analysis Plot     
     20170819 110840   -2.6      N/A   8.2% 166.65    2.60  35.0 SSMI15  15.7  120.7   15.7  120.7   15.9  120.5 Analysis Plot     
     20170819 144600   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI17  15.8  121.8   15.8  121.8   15.4  122.3 Analysis Plot     
     20170819 151500 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  15.8  121.9   15.8  121.9   15.7  122.1 Analysis Plot     
     20170819 210835 -930.0      N/A   N/A     N/A    0.00  50.0  AMSR2  15.9  123.7   15.9  123.7   15.3  123.9 Analysis Plot     
     20170820 022600 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  16.1  124.9   16.1  124.9   16.6  124.9 Analysis Plot     
     20170820 022500 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  16.2  125.4   16.2  125.4   16.6  126.1 Analysis Plot     
     20170820 150100   51.3  >65 kts 100.0%  33.33   36.33  65.0 SSMI18  16.3  127.5   16.1  127.3   16.1  127.3 Analysis Plot     
     20170820 215034   66.4  >85 kts 100.0%  33.33   51.38  80.0  AMSR2  16.2  128.5   16.3  128.3   16.3  128.3 Analysis Plot     
     20170821 015910   75.1  >85 kts 100.0%  33.33   60.08  95.0    GMI  16.7  129.0   16.6  128.9   16.6  128.9 Analysis Plot     
     20170821 021500 -930.0      N/A   N/A     N/A    0.00  95.0 SSMI18  16.8  129.1   16.8  129.1   16.6  128.6 Analysis Plot     
     20170821 032800 -930.0      N/A   N/A     N/A    0.00  95.0 SSMI17  16.9  129.3   16.9  129.3   16.9  129.1 Analysis Plot     
     20170821 143700   58.7  >65 kts 100.0%  33.33   43.65 115.0 SSMI16  17.7  130.7   17.7  130.6   17.7  130.6 Analysis Plot     
     20170821 151552   45.1  >65 kts 100.0%  33.33   30.05 115.0    GMI  17.9  130.9   17.8  130.8   17.8  130.8 Analysis Plot     
     20170821 223518 -930.0      N/A   N/A     N/A    0.00 105.0  AMSR2  18.4  131.7   18.4  131.7   18.8  131.5 Analysis Plot     
     20170822 031400    0.1      N/A  28.8%  55.55     .14  95.0 SSMI17  19.1  132.0   19.0  131.9   19.0  131.9 Analysis Plot     
     20170822 031400    0.7      N/A  28.8%  55.55     .66  95.0 SSMI17  19.3  132.2   19.0  131.9   19.0  131.9 Analysis Plot     
     20170822 114658    4.4      N/A  28.8%  99.99    4.40  70.0 SSMI15  20.4  132.9   20.3  132.6   20.3  132.6 Analysis Plot     
     20170822 154700   13.1      N/A  34.2%  66.66   13.09  70.0 SSMI17  21.1  133.2   21.1  133.2   21.2  133.1 Analysis Plot     
     20170822 214130 -930.0      N/A   N/A     N/A    0.00  65.0  AMSR2  21.8  133.6   22.0  133.4   22.0  133.4 Analysis Plot     
     20170823 014649 -930.0      N/A   N/A     N/A    0.00  60.0    GMI  22.4  133.9   22.4  133.9   22.3  134.0 Analysis Plot     
     20170823 030200    2.8      N/A  19.2%  66.66    2.77  60.0 SSMI17  22.7  134.1   22.7  134.1   22.6  134.1 Analysis Plot     
     20170823 150648 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  24.6  135.1   24.6  135.1   24.6  135.1 Analysis Plot     
     20170823 153300   -7.6      N/A   1.4% 222.20    7.59  35.0 SSMI17  24.7  135.2   24.7  135.2   24.7  135.2 Analysis Plot     
     20170823 160300   -7.1      N/A   N/A  222.20    7.08  35.0 SSMI18  24.8  135.2   24.8  135.2   24.7  135.4 Analysis Plot
 
 
Legend:

  - Date/Time are determined from PMW imagery at Forecast (initial guess) Lat/Lon position.

  - Positive/Negative Latitude = North/South Hemisphere; Longitude = Western/Eastern Hemisphere.

  - "Ring Diam" value indicates the estimated surface eyewall diameter in km (the MI eyewall edge diameter minus 10 km).

  - "Ring Pct" is the percentage of the "ring" (eyewall inner boundary) that is 1) colder than the "hot spot" (warmest eye pixel) in the eye by 20K, or 2) the percentage that is a) colder than 232K and b) colder than the "hot spot" by 10K, whichever is greater.
  - Values are red if Ring % <= 65, yellow/brown if Ring % <= 85 and green if Ring % > 85.

  - "Tb diff" is the difference between the "hot spot" (warmest eye pixel) and the warmest pixel on the eyewall.

  - Intensity score are listed as negative, and not used, when the JTWC or NHC estimated Vmax is <55 kts in order to rule out weak but highly symmetric TCs.

  - Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -930 means <85% of eyewall has observations/data.