Tropical Depression 04S


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              
     20141225 012800   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI18 -11.4  -97.1  -11.4  -97.1  -11.9  -96.8 Analysis Plot     
     20141225 100600   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI16 -11.7  -96.5  -11.7  -96.5  -12.5  -95.8 Analysis Plot     
     20141225 232500  -36.3      N/A 100.0%  33.33   21.33  35.0 SSMI17 -12.8  -95.7  -12.8  -95.7  -12.2  -94.8 Analysis Plot     
     20141226 011500  -53.4      N/A 100.0%  33.33   38.39  45.0 SSMI18 -12.4  -94.7  -12.3  -94.7  -12.3  -94.7 Analysis Plot     
     20141226 095400  -44.8      N/A 100.0%  22.22   29.82  45.0 SSMI16 -12.6  -94.1  -12.6  -94.1  -12.4  -94.2 Analysis Plot     
     20141226 135300    5.7      N/A  72.6%  22.22    5.68  70.0 SSMI18 -12.4  -94.2  -12.5  -94.1  -12.5  -94.1 Analysis Plot     
     20141226 205618   10.5      N/A  56.2%  33.33   10.49 105.0 SSMI15 -12.7  -93.9  -12.6  -93.9  -12.6  -93.9 Analysis Plot     
     20141226 231300   61.9  >85 kts 100.0%  44.44   46.87 105.0 SSMI17 -12.8  -93.8  -12.8  -93.8  -12.8  -93.8 Analysis Plot     
     20141227 010300   41.0  >65 kts 100.0%  22.22   25.98 105.0 SSMI18 -12.9  -93.7  -12.7  -93.7  -12.7  -93.7 Analysis Plot     
     20141227 100420   -0.0      N/A   N/A     N/A    0.00 105.0 SSMI15 -13.2  -93.5  -13.0  -92.9  -13.0  -92.9 Analysis Plot     
     20141227 114800   -0.0      N/A   N/A     N/A    0.00 105.0 SSMI17 -13.4  -93.4  -13.3  -92.8  -13.3  -92.8 Analysis Plot     
     20141227 202844   39.2  >65 kts 100.0%  44.44   24.23  85.0 SSMI15 -13.3  -93.0  -13.2  -92.7  -13.2  -92.7 Analysis Plot     
     20141227 223100   41.1  >65 kts 100.0%  44.44   26.08  85.0 SSMI16 -13.4  -92.9  -13.0  -92.7  -13.0  -92.7 Analysis Plot     
     20141228 005100   40.4  >65 kts 100.0%  66.66   25.45  85.0 SSMI18 -13.5  -92.9  -13.2  -92.7  -13.2  -92.7 Analysis Plot     
     20141228 101022   40.2  >65 kts 100.0% 111.10   25.22  90.0 SSMI15 -13.8  -92.3  -13.8  -92.5  -13.8  -92.5 Analysis Plot     
     20141228 113600    1.6      N/A  12.3% 111.10    1.61  90.0 SSMI17 -13.9  -92.2  -14.0  -92.4  -14.0  -92.4 Analysis Plot     
     20141228 132800    3.1      N/A   1.4% 222.20    3.14  90.0 SSMI18 -14.0  -92.2  -14.1  -92.2  -14.1  -92.2 Analysis Plot     
     20141228 221800   11.0      N/A  46.6% 166.65   10.97  70.0 SSMI16 -14.7  -92.0  -14.2  -92.4  -14.2  -92.4 Analysis Plot     
     20141229 092415    1.9      N/A  24.7%  22.22    1.94  65.0 SSMI15 -14.9  -91.7  -14.9  -91.6  -14.9  -91.6 Analysis Plot     
     20141229 105400   37.4  >65 kts 100.0%  33.33   22.45  65.0 SSMI16 -15.0  -91.6  -15.1  -91.5  -15.1  -91.5 Analysis Plot     
     20141229 131500   16.0      N/A  74.0%  33.33   16.02  65.0 SSMI18 -15.2  -91.5  -15.2  -91.5  -15.2  -91.5 Analysis Plot     
     20141229 220500   27.6  >65 kts  94.5%  22.22   12.59  75.0 SSMI16 -16.1  -90.8  -16.1  -90.6  -16.1  -90.6 Analysis Plot     
     20141230 001500   36.7  >65 kts 100.0%  11.11   21.67 105.0 SSMI17 -16.4  -90.6  -16.4  -90.3  -16.4  -90.3 Analysis Plot     
     20141230 104000   28.8  >65 kts 100.0%  22.22   13.76 105.0 SSMI16 -17.4  -89.6  -17.8  -89.5  -17.8  -89.5 Analysis Plot     
     20141230 125000   16.5      N/A 100.0%  33.33    1.48 105.0 SSMI17 -17.9  -89.4  -18.3  -89.5  -18.3  -89.5 Analysis Plot     
     20141230 215601    2.5      N/A  40.3% 177.76    2.47 105.0 SSMI15 -18.9  -88.2  -19.4  -88.2  -19.4  -88.2 Analysis Plot     
     20141231 000200    8.0      N/A  36.8% 199.98    7.97  85.0 SSMI17 -19.4  -87.9  -19.9  -88.1  -19.9  -88.1 Analysis Plot     
     20141231 015700   -0.0      N/A   N/A     N/A    0.00  85.0 SSMI18 -19.7  -87.6  -19.3  -87.4  -19.3  -87.4 Analysis Plot     
     20141231 112909 -930.0      N/A   N/A  222.20  1281.7  85.0 SSMI15 -20.8  -86.5  -20.4  -86.8  -20.4  -86.8 Analysis Plot     
     20141231 123500   -4.6      N/A   9.6% 177.76    4.56  35.0 SSMI17 -20.5  -85.9  -20.5  -85.9  -20.8  -85.7 Analysis Plot     
     20141231 143000   -3.8      N/A   4.7% 222.20    3.76  35.0 SSMI18 -20.8  -85.7  -20.8  -85.7  -21.1  -85.4 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.