Tropical Depression 06B

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.1.5
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20131206 003400   -2.2      N/A   4.1% 155.54    2.17  35.0 SSMI17   9.8  -83.8    9.8  -83.8    9.8  -84.1 Analysis Plot     
     20131206 022400   -4.5      N/A   6.8% 122.21    4.52  35.0 SSMI18   9.8  -83.7    9.8  -83.7    9.6  -83.9 Analysis Plot     
     20131206 114400   -2.6      N/A  32.9% 122.21    2.55  35.0 SSMI17  10.3  -83.6   10.0  -84.0   10.0  -84.0 Analysis Plot     
     20131206 231800   -9.7      N/A  33.8% 222.20    9.73  45.0 SSMI16  10.0  -83.9   10.6  -84.2   10.6  -84.2 Analysis Plot     
     20131207 021200   -1.8      N/A  42.5% 222.20    1.75  45.0 SSMI18  10.5  -83.8   10.5  -83.8   10.8  -84.1 Analysis Plot     
     20131207 123852 -930.0      N/A   N/A   66.66   17.19  60.0   TRMM  11.1  -84.5   10.8  -84.4   10.8  -84.4 Analysis Plot     
     20131207 230500   16.6      N/A  30.1%  55.55   16.58  60.0 SSMI16  11.7  -84.5   11.7  -84.5   11.9  -84.6 Analysis Plot     
     20131208 000800   17.2      N/A  84.9%  44.44   17.21  60.0 SSMI17  11.8  -84.5   11.8  -84.5   12.0  -84.6 Analysis Plot     
     20131208 020000    6.4      N/A  57.5%  66.66    6.42  65.0 SSMI18  12.0  -84.5   12.1  -84.6   12.1  -84.6 Analysis Plot     
     20131208 213430 -930.0      N/A   N/A   22.22    8.43  65.0   TRMM  13.6  -84.6   13.6  -84.6   13.8  -84.6 Analysis Plot     
     20131208 235500   45.8  >65 kts 100.0%  55.55   30.75  65.0 SSMI17  13.8  -84.6   13.9  -84.6   13.9  -84.6 Analysis Plot     
     20131209 090315   21.2  >65 kts  42.5%  55.55   21.21  60.0 SSMI15  14.5  -84.7   14.5  -84.7   14.4  -84.7 Analysis Plot     
     20131209 114400   37.8  >65 kts 100.0%  55.55   22.82  60.0 SSMI16  14.6  -84.7   14.6  -84.7   14.6  -84.7 Analysis Plot     
     20131209 144000 -930.0      N/A   N/A   99.99    3.42  60.0 SSMI18  14.7  -84.8   14.7  -84.8   14.7  -84.8 Analysis Plot     
     20131209 203819   51.7  >65 kts 100.0%  66.66   36.69  60.0   TRMM  15.0  -84.8   15.0  -84.8   14.9  -85.0 Analysis Plot     
     20131209 213708   43.5  >65 kts 100.0%  77.77   28.49  60.0 SSMI15  15.0  -84.8   15.0  -84.8   15.0  -85.1 Analysis Plot     
     20131210 113000    6.1      N/A   N/A  122.21    6.11  70.0 SSMI16  15.6  -85.2   15.6  -85.2   15.1  -84.8 Analysis Plot     
     20131210 123400    3.3      N/A   N/A  133.32    3.34  60.0 SSMI17  15.1  -84.9   15.1  -84.9   15.0  -84.5 Analysis Plot     
     20131210 142700    2.1      N/A   N/A   77.77    2.07  60.0 SSMI18  15.0  -84.8   15.0  -84.8   14.7  -84.5 Analysis Plot     
     20131210 194251   -3.9      N/A   N/A  144.43    3.92  50.0   TRMM  14.6  -84.6   14.6  -84.6   14.9  -84.3 Analysis Plot     
     20131211 000700 -930.0      N/A   N/A  155.54    4.30  50.0 SSMI16  14.3  -84.3   14.3  -84.3   14.5  -83.9 Analysis Plot     
     20131211 030400 -930.0      N/A   N/A  166.65    6.35  45.0 SSMI18  14.2  -83.9   14.2  -83.9   14.3  -83.8 Analysis Plot     
     20131211 111700   -3.2      N/A  13.7% 222.20    3.18  40.0 SSMI16  13.4  -83.1   13.4  -83.1   13.5  -82.8 Analysis Plot     
     20131211 141400   -2.4      N/A   N/A   88.88    2.39  40.0 SSMI18  13.2  -82.9   13.2  -82.9   12.8  -82.8 Analysis Plot     
     20131211 235400   -2.5      N/A   N/A  199.98    2.47  35.0 SSMI16  12.3  -81.9   12.3  -81.9   12.1  -81.6 Analysis Plot     
     20131212 005800   -3.1      N/A   N/A  155.54    3.13  35.0 SSMI17  12.1  -81.8   12.1  -81.8   11.8  -81.5 Analysis Plot     
     20131212 025100   -1.1      N/A   5.5% 211.09    1.12  35.0 SSMI18  11.9  -81.5   11.9  -81.5   11.7  -81.3 Analysis Plot     
     20131212 093932   -2.1      N/A   2.7% 188.87    2.08  35.0   TRMM  11.1  -80.5   11.1  -80.5   10.4  -80.3 Analysis Plot     
     20131212 110500 -930.0      N/A   N/A  211.09    2.94  35.0 SSMI16  11.1  -80.4   11.1  -80.4   10.4  -79.7 Analysis Plot     
     20131212 120700   -3.1      N/A   N/A   44.44    3.06  35.0 SSMI17  10.9  -80.3   10.9  -80.3   10.5  -79.8 Analysis Plot     
     20131212 140200 -930.0      N/A   N/A  111.10    7.07  35.0 SSMI18  10.7  -80.0   10.7  -80.0   10.6  -79.4 Analysis Plot     
     20131212 193033   -2.2      N/A   N/A  122.21    2.24  35.0   TRMM  10.2  -79.0   10.2  -79.0   10.1  -78.8 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.