Tropical Depression 06W

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              
     20140428 173111  -22.5      N/A  56.2%  55.55   22.48  50.0   TRMM  14.4 -147.4   14.8 -147.4   14.8 -147.4 Analysis Plot     
     20140428 192200   30.5  >65 kts  97.3%  44.44   15.50  55.0 SSMI16  15.2 -147.5   14.9 -147.5   14.9 -147.5 Analysis Plot     
     20140428 201400   33.9  >65 kts  94.5%  22.22   18.93  55.0 SSMI17  15.2 -147.5   15.1 -147.4   15.1 -147.4 Analysis Plot     
     20140428 221400   51.4  >65 kts 100.0%  44.44   36.38  55.0 SSMI18  15.5 -147.5   15.3 -147.5   15.3 -147.5 Analysis Plot     
     20140429 063400   19.8      N/A 100.0%  22.22    4.81  65.0 SSMI16  16.5 -147.4   16.5 -147.4   16.6 -147.5 Analysis Plot     
     20140429 072700 -930.0      N/A   N/A  144.43  1270.2  65.0 SSMI17  16.4 -147.3   16.4 -147.3   16.4 -147.0 Analysis Plot     
     20140429 082323    0.4      N/A  68.5%  33.33     .43  65.0   TRMM  16.6 -147.3   16.6 -147.3   17.0 -147.5 Analysis Plot     
     20140429 092700   -0.0      N/A   N/A     N/A    0.00  65.0 SSMI18  16.6 -147.3   16.6 -147.3   17.1 -147.5 Analysis Plot     
     20140429 163508   33.2  >65 kts  90.4%  22.22   18.21  65.0   TRMM  17.7 -147.1   18.0 -147.6   18.0 -147.6 Analysis Plot     
     20140429 190900 -920.0      N/A 100.0%  22.22    1.33  60.0 SSMI16  18.2 -147.4   18.2 -147.4   18.4 -147.8 Analysis Plot     
     20140429 220000   -0.0      N/A   N/A     N/A    0.00  60.0 SSMI18  18.5 -147.3   18.5 -147.3   18.4 -147.4 Analysis Plot     
     20140430 071416    2.6      N/A   N/A   33.33    2.55  60.0 SSMI15  19.3 -147.0   19.3 -147.0   19.0 -147.0 Analysis Plot     
     20140430 091600   23.0  >65 kts  93.2%  44.44    7.98  55.0 SSMI18  19.7 -146.9   19.7 -146.9   19.3 -148.0 Analysis Plot     
     20140430 153912   -7.1      N/A   8.2% 133.32    7.10  45.0   TRMM  20.4 -146.7   20.4 -146.7   20.2 -146.3 Analysis Plot     
     20140430 185600   -6.7      N/A  15.6% 299.97    6.74  45.0 SSMI16  20.8 -146.1   20.8 -146.1   20.9 -146.0 Analysis Plot     
     20140430 214900 -930.0      N/A   N/A  299.97  1278.3  45.0 SSMI18  21.1 -145.9   21.1 -145.9   21.4 -145.6 Analysis Plot     
     20140501 070204  -10.5      N/A   N/A  177.76   10.50  35.0 SSMI15  22.0 -144.9   22.0 -144.9   22.3 -144.7 Analysis Plot     
     20140501 080958   -4.3      N/A   N/A   44.44    4.34  25.0   TRMM  22.3 -144.2   22.3 -144.2   22.5 -144.4 Analysis Plot     
     20140501 144248   -4.1      N/A   N/A   33.33    4.12  25.0   TRMM  23.1 -143.8   23.1 -143.8   23.1 -144.0 Analysis Plot     
     20140501 175941   -0.6      N/A   N/A  122.21     .60  25.0 SSMI15  23.6 -143.6   23.6 -143.6   23.6 -144.1 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.