Tropical Depression 24W


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              
     20161012 164508 -930.0      N/A   N/A     N/A    0.00  25.0  AMSR2  13.3 -129.7   13.3 -129.7   12.7 -130.6 Analysis Plot     
     20161012 191700 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  12.5 -129.9   12.5 -129.9   12.2 -130.5 Analysis Plot     
     20161012 213000   -2.2      N/A  41.2% 288.86    2.19  30.0 SSMI17  12.6 -129.6   12.6 -129.6   12.5 -129.5 Analysis Plot     
     20161012 223100 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  12.7 -129.5   12.7 -129.5   12.2 -129.2 Analysis Plot     
     20161013 035336 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  12.8 -129.3   12.8 -129.3   12.5 -129.8 Analysis Plot     
     20161013 051441 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  12.9 -129.2   12.9 -129.2   13.9 -128.8 Analysis Plot     
     20161013 094200 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  13.5 -128.9   13.5 -128.9   14.3 -129.6 Analysis Plot     
     20161013 170910 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  13.9 -128.1   13.9 -128.1   14.3 -128.5 Analysis Plot     
     20161013 172809 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  14.0 -128.0   14.0 -128.0   14.5 -127.5 Analysis Plot     
     20161013 221900   -3.4      N/A  11.0% 144.43    3.40  35.0 SSMI18  14.1 -128.0   14.1 -128.0   14.1 -127.9 Analysis Plot     
     20161014 081216   -4.4      N/A  26.0% 155.54    4.43  45.0 SSMI15  13.8 -126.7   13.8 -126.7   14.2 -126.1 Analysis Plot     
     20161014 100800  -10.7      N/A  84.9%  66.66   10.72  45.0 SSMI17  14.0 -126.1   14.0 -126.1   13.6 -126.2 Analysis Plot     
     20161014 193915   56.7  >65 kts 100.0%  77.77   41.70  65.0 SSMI15  14.0 -124.8   14.0 -125.1   14.0 -125.1 Analysis Plot     
     20161014 224500 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI17  14.5 -124.5   14.5 -124.5   14.3 -124.7 Analysis Plot     
     20161015 034406   44.3  >65 kts 100.0%  44.44   29.28  80.0    GMI  14.4 -123.8   14.5 -124.2   14.5 -124.2 Analysis Plot     
     20161015 050151   51.4  >65 kts 100.0%  44.44   36.44  80.0  AMSR2  14.5 -123.7   14.6 -124.1   14.6 -124.1 Analysis Plot     
     20161015 075712   49.3  >65 kts 100.0%  44.44   34.31  80.0 SSMI15  14.5 -123.5   14.7 -124.0   14.7 -124.0 Analysis Plot     
     20161015 095500   44.3  >65 kts 100.0%  33.33   29.28  90.0 SSMI17  14.9 -123.3   15.0 -123.4   15.0 -123.4 Analysis Plot     
     20161015 110000   47.1  >65 kts 100.0%  33.33   32.08  90.0 SSMI18  15.0 -123.1   15.0 -123.1   15.0 -123.1 Analysis Plot     
     20161015 170005   66.6  >85 kts 100.0%  22.22   51.62 100.0    GMI  15.4 -121.9   15.7 -122.0   15.7 -122.0 Analysis Plot     
     20161015 171535   53.8  >65 kts 100.0%  33.33   38.76 100.0  AMSR2  15.5 -121.8   15.7 -121.9   15.7 -121.9 Analysis Plot     
     20161015 192237   61.0  >85 kts 100.0%  33.33   46.05 100.0 SSMI15  15.6 -121.6   15.9 -121.6   15.9 -121.6 Analysis Plot     
     20161015 212200   22.7  >65 kts 100.0%  44.44    7.72 115.0 SSMI16  15.9 -121.4   15.9 -121.3   15.9 -121.3 Analysis Plot     
     20161015 223100   -0.0      N/A   N/A     N/A    0.00 115.0 SSMI17  16.1 -120.7   16.1 -120.5   16.1 -120.5 Analysis Plot     
     20161016 054552    3.2      N/A   2.7%  22.22    3.24  80.0  AMSR2  16.5 -118.6   16.5 -118.5   16.5 -118.5 Analysis Plot     
     20161016 104700    3.3      N/A   N/A   44.44    3.30  75.0 SSMI18  16.6 -117.4   16.5 -117.6   16.5 -117.6 Analysis Plot     
     20161016 175758    7.7      N/A  26.0%  11.11    7.71  80.0  AMSR2  16.9 -115.7   16.7 -115.2   16.7 -115.2 Analysis Plot     
     20161017 033237 -930.0      N/A   N/A     N/A    0.00  80.0    GMI  17.3 -113.6   17.3 -113.6   17.1 -113.9 Analysis Plot     
     20161017 165047    9.1      N/A  34.2% 166.65    9.07  80.0    GMI  18.3 -111.8   18.1 -111.9   18.1 -111.9 Analysis Plot     
     20161017 184118 -930.0      N/A   N/A     N/A    0.00  75.0  AMSR2  18.5 -111.3   18.5 -111.6   18.5 -111.6 Analysis Plot     
     20161018 053457    7.1      N/A   6.8%  11.11    7.06  70.0  AMSR2  19.3 -110.2   19.2 -110.1   19.2 -110.1 Analysis Plot     
     20161018 085800 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI16  19.3 -109.8   19.3 -109.8   19.3 -110.5 Analysis Plot     
     20161018 105800    2.0      N/A   N/A   88.88    2.02  60.0 SSMI17  19.6 -109.5   19.6 -109.5   19.5 -110.4 Analysis Plot     
     20161018 195414   -4.1      N/A   N/A  233.31    4.14  45.0 SSMI15  20.7 -108.2   20.7 -108.2   20.6 -109.2 Analysis Plot     
     20161018 222500   -3.7      N/A  16.9% 311.08    3.68  45.0 SSMI16  20.8 -108.1   20.8 -108.1   20.8 -108.7 Analysis Plot     
     20161018 233100   -2.1      N/A  13.2% 288.86    2.09  45.0 SSMI17  21.0 -107.9   21.0 -107.9   21.2 -108.3 Analysis Plot     
     20161019 032051   -3.6      N/A   N/A   66.66    3.61  35.0    GMI  21.2 -107.6   21.2 -107.6   21.2 -108.1 Analysis Plot     
     20161019 084400   -1.5      N/A   N/A   66.66    1.51  30.0 SSMI16  21.7 -108.1   21.7 -108.1   21.6 -108.2 Analysis Plot     
     20161019 104500 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  21.8 -108.1   21.8 -108.1   21.9 -108.3 Analysis Plot     
     20161019 115400 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  21.9 -108.1   21.9 -108.1   22.2 -108.1 Analysis Plot     
     20161019 164008 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  22.1 -107.9   22.1 -107.9   22.3 -106.8 Analysis Plot     
     20161019 182730   -2.4      N/A   N/A  144.43    2.36  30.0  AMSR2  22.2 -107.9   22.2 -107.9   22.1 -107.8 Analysis Plot     
     20161019 220400   -0.3      N/A   N/A  177.76     .25  30.0 SSMI16  22.3 -107.9   22.3 -107.9   22.4 -107.6 Analysis Plot     
     20161019 231700   -0.3      N/A   N/A  266.64     .26  30.0 SSMI17  22.4 -107.8   22.4 -107.8   22.8 -107.6 Analysis Plot     
     20161020 002500 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  22.4 -107.9   22.4 -107.9   22.2 -107.3 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.