Tropical Storm 12L

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              
     20151109 070139 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  23.4   74.2   23.4   74.2   24.9   75.0 Analysis Plot     
     20151109 115000  -10.7      N/A   5.5%  77.77   10.72  40.0 SSMI19  24.1   74.8   24.1   74.8   24.1   74.2 Analysis Plot     
     20151109 115400   -6.8      N/A   N/A   66.66    6.77  40.0 SSMI17  24.2   74.9   24.2   74.9   24.3   74.4 Analysis Plot     
     20151109 130900 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  24.4   75.0   24.4   75.0   24.6   75.1 Analysis Plot     
     20151109 231100   -5.4      N/A  24.7%  66.66    5.36  40.0 SSMI17  25.9   76.3   25.9   76.3   26.4   75.8 Analysis Plot     
     20151110 002500   -3.0      N/A  45.2%  66.66    3.04  40.0 SSMI18  26.0   76.3   26.0   76.3   26.8   76.0 Analysis Plot     
     20151110 002500   -2.8      N/A  54.8%  66.66    2.78  45.0 SSMI18  26.9   76.1   26.9   76.1   26.8   76.0 Analysis Plot     
     20151110 101610 -930.0      N/A   N/A     N/A    0.00  50.0    GMI  29.1   75.6   29.1   75.6   28.9   75.0 Analysis Plot     
     20151110 113900    4.4      N/A  43.8% 155.54    4.41  55.0 SSMI17  29.6   75.3   29.6   75.3   29.4   74.8 Analysis Plot     
     20151110 125300    6.3      N/A  39.7% 177.76    6.26  55.0 SSMI18  29.8   75.1   29.8   75.1   29.7   74.3 Analysis Plot     
     20151110 225900   33.9  >65 kts  97.3%  77.77   18.85  60.0 SSMI17  32.5   72.2   32.5   72.2   33.0   71.1 Analysis Plot     
     20151111 001600 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI18  33.4   70.7   33.4   70.7   33.3   70.9 Analysis Plot     
     20151111 064554    7.9      N/A  31.5%  66.66    7.90  60.0  AMSR2  35.6   66.8   35.6   66.8   35.5   66.3 Analysis Plot     
     20151111 092629   23.6  >65 kts  74.6%  88.88   23.57  60.0    GMI  36.1   65.4   36.0   64.6   36.0   64.6 Analysis Plot     
     20151111 112400    8.7      N/A  67.1% 111.10    8.75  65.0 SSMI17  36.2   62.5   36.4   63.1   36.4   63.1 Analysis Plot     
     20151111 210600    6.7      N/A  24.7% 166.65    6.73  65.0 SSMI17  38.1   56.7   38.1   56.7   38.5   56.0 Analysis Plot     
     20151111 222200   -0.0      N/A   N/A     N/A    0.00  65.0 SSMI18  38.7   55.3   38.7   55.3   39.0   54.4 Analysis Plot     
     20151112 054850    4.7      N/A  12.3% 211.09    4.66  60.0  AMSR2  40.3   51.5   40.3   51.5   39.7   51.2 Analysis Plot     
     20151112 083615    3.5      N/A   N/A  177.76    3.49  60.0    GMI  40.6   50.9   40.6   50.9   40.5   50.8 Analysis Plot     
     20151112 093200    5.6      N/A   4.1% 211.09    5.64  60.0 SSMI16  40.5   51.2   40.5   51.2   40.4   50.9 Analysis Plot     
     20151112 104400    2.1      N/A   N/A   44.44    2.08  60.0 SSMI18  41.0   50.2   41.0   50.2   41.3   50.0 Analysis Plot     
     20151112 110500 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI19  41.1   50.0   41.1   50.0   41.5   50.5 Analysis Plot     
     20151112 164038    0.8      N/A   N/A   33.33     .84  60.0    GMI  41.7   48.7   41.7   48.7   42.0   49.7 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.