Tropical Depression 11W

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              
     20170726 050806 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  16.3 -128.5   16.3 -128.5   15.7 -128.7 Analysis Plot     
     20170726 080915 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI15  16.4 -128.5   16.4 -128.5   16.9 -128.2 Analysis Plot     
     20170726 091700   -1.3      N/A   1.5% 199.98    1.34  45.0 SSMI17  16.5 -128.2   16.5 -128.2   16.3 -129.2 Analysis Plot     
     20170726 092200 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  16.6 -128.2   16.6 -128.2   16.6 -128.9 Analysis Plot     
     20170726 163321   -2.9      N/A  28.8% 166.65    2.93  45.0    GMI  17.5 -127.9   17.5 -127.9   17.3 -127.4 Analysis Plot     
     20170726 193247   -0.0      N/A   N/A     N/A    0.00  50.0 SSMI15  17.5 -127.7   17.5 -127.7   17.1 -127.2 Analysis Plot     
     20170726 215600   -1.9      N/A  12.3% 166.65    1.93  50.0 SSMI18  17.8 -127.6   17.8 -127.6   18.0 -127.1 Analysis Plot     
     20170727 043309    7.2      N/A  21.9% 188.87    7.21  55.0  AMSR2  18.1 -127.4   18.1 -127.4   18.2 -126.9 Analysis Plot     
     20170727 080615    2.7      N/A  19.2% 122.21    2.72  55.0 SSMI15  18.2 -127.4   18.2 -127.4   18.2 -126.9 Analysis Plot     
     20170727 081100 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  18.2 -127.3   18.2 -127.3   19.1 -126.9 Analysis Plot     
     20170727 091200 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  18.6 -127.0   18.6 -127.0   17.6 -127.4 Analysis Plot     
     20170727 154104 -930.0      N/A   N/A     N/A    0.00  55.0    GMI  19.0 -126.5   19.0 -126.5   18.6 -127.3 Analysis Plot     
     20170727 190700    1.3      N/A  21.9% 199.98    1.31  55.0 SSMI15  19.3 -126.3   19.3 -126.3   19.2 -126.2 Analysis Plot     
     20170727 214400   -0.0      N/A   N/A     N/A    0.00  55.0 SSMI18  19.9 -126.1   19.9 -126.1   19.8 -125.8 Analysis Plot     
     20170728 045904   34.6  >65 kts 100.0%  44.44   19.61  55.0    GMI  20.5 -125.4   20.4 -125.2   20.4 -125.2 Analysis Plot     
     20170728 051648   -0.0      N/A   N/A     N/A    0.00  55.0  AMSR2  20.5 -125.4   20.5 -125.4   20.5 -125.4 Analysis Plot     
     20170728 074700   45.3  >65 kts 100.0%  44.44   30.32  65.0 SSMI16  20.6 -125.3   20.6 -125.3   20.7 -125.1 Analysis Plot     
     20170728 211400   16.6      N/A  91.8%  22.22    1.61  75.0 SSMI16  21.8 -123.5   21.8 -123.5   21.8 -123.5 Analysis Plot     
     20170728 230400 -930.0      N/A   N/A     N/A    0.00  75.0 SSMI17  22.2 -122.9   22.2 -122.9   22.4 -123.1 Analysis Plot     
     20170729 102800   57.1  >65 kts 100.0%  99.99   42.13  80.0 SSMI18  23.7 -122.1   24.1 -122.0   24.1 -122.0 Analysis Plot     
     20170729 152904    5.4      N/A   N/A   33.33    5.42  70.0    GMI  25.0 -121.1   25.0 -121.1   25.1 -120.8 Analysis Plot     
     20170729 201700    5.1      N/A  19.2% 155.54    5.06  60.0 SSMI16  25.4 -120.0   25.4 -120.0   25.5 -119.7 Analysis Plot     
     20170730 050609   -2.1      N/A   N/A   11.11    2.11  50.0  AMSR2  26.4 -118.7   26.4 -118.7   26.5 -118.3 Analysis Plot     
     20170730 085151 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI15  26.5 -118.5   26.5 -118.5   26.0 -117.7 Analysis Plot     
     20170730 100700   -2.0      N/A   N/A   22.22    1.98  50.0 SSMI17  26.8 -118.1   26.8 -118.1   27.0 -119.1 Analysis Plot     
     20170730 101600 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI18  26.9 -117.9   26.9 -117.9   26.8 -118.8 Analysis Plot     
     20170730 200321 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI15  27.8 -117.2   27.8 -117.2   27.7 -118.1 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.