Tropical Depression 15W

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              
     20140910 211100   -3.5      N/A   9.6% 133.32    3.47  25.0 SSMI17  10.4 -140.2   10.4 -140.2   11.1 -140.0 Analysis Plot     
     20140911 074200   -0.0      N/A   N/A     N/A    0.00  25.0 SSMI16  12.9 -138.2   12.9 -138.2   13.1 -137.5 Analysis Plot     
     20140911 102539   -3.5      N/A   8.2%  55.55    3.54  25.0 SSMI15  11.1 -138.0   11.1 -138.0   11.8 -138.1 Analysis Plot     
     20140911 102600   -2.4      N/A   8.2% 155.54    2.38  25.0 SSMI18  13.4 -137.3   13.4 -137.3   13.6 -137.1 Analysis Plot     
     20140911 120002   -5.9      N/A   N/A  299.97    5.94  25.0   TRMM  13.5 -137.2   13.5 -137.2   13.2 -137.3 Analysis Plot     
     20140911 185525   -5.9      N/A   7.7% 255.53    5.90  25.0 SSMI15  14.4 -135.3   14.4 -135.3   13.9 -135.5 Analysis Plot     
     20140911 201800   -0.0      N/A   N/A     N/A    0.00  30.0 SSMI16  14.2 -133.4   14.2 -133.4   13.6 -133.4 Analysis Plot     
     20140911 205700 -930.0      N/A   N/A   66.66  1265.1  30.0 SSMI17  14.2 -133.3   14.2 -133.3   13.2 -132.6 Analysis Plot     
     20140911 214910 -930.0      N/A   N/A  155.54  1277.0  30.0   TRMM  14.2 -133.3   14.2 -133.3   14.7 -133.1 Analysis Plot     
     20140911 230300  -11.2      N/A  71.2%  55.55   11.24  30.0 SSMI18  14.3 -132.8   14.3 -132.8   13.8 -132.7 Analysis Plot     
     20140912 072900   -2.8      N/A  41.1%  55.55    2.78  35.0 SSMI16  13.8 -130.6   13.8 -130.6   13.8 -130.7 Analysis Plot     
     20140912 123905 -930.0      N/A   N/A  144.43  1276.9  40.0   TRMM  13.8 -129.6   13.8 -129.6   14.3 -130.1 Analysis Plot     
     20140912 200500 -930.0      N/A   N/A  244.42  1272.1  50.0 SSMI16  13.9 -129.1   13.9 -129.1   14.7 -128.8 Analysis Plot     
     20140912 205038   -1.9      N/A  20.5% 155.54    1.91  50.0   TRMM  13.9 -129.0   13.9 -129.0   14.1 -128.9 Analysis Plot     
     20140912 225200   -0.4      N/A  34.2% 144.43     .38  50.0 SSMI18  14.0 -128.7   14.0 -128.7   14.1 -128.6 Analysis Plot     
     20140913 093600 -930.0      N/A   N/A  277.75  1278.3  60.0 SSMI17  15.0 -127.0   15.0 -127.0   15.3 -126.3 Analysis Plot     
     20140913 114038 -930.0      N/A   N/A  311.08  1283.0  60.0   TRMM  15.3 -126.6   15.3 -126.6   15.6 -126.5 Analysis Plot     
     20140913 221100   22.0  >65 kts  98.6%  66.66    7.03  65.0 SSMI17  16.1 -125.0   15.9 -124.8   15.9 -124.8 Analysis Plot     
     20140914 075922   41.9  >65 kts 100.0%  99.99   26.94  70.0 SSMI15  17.0 -123.3   17.0 -123.2   17.0 -123.2 Analysis Plot     
     20140914 084600   51.5  >65 kts 100.0%  77.77   36.53  70.0 SSMI16  17.2 -122.8   17.4 -122.4   17.4 -122.4 Analysis Plot     
     20140914 092400   43.0  >65 kts 100.0%  77.77   27.99  70.0 SSMI17  17.3 -122.6   17.4 -122.4   17.4 -122.4 Analysis Plot     
     20140914 113200   30.9  >65 kts  94.5%  33.33   15.95  70.0 SSMI18  17.5 -122.1   17.5 -122.0   17.5 -122.0 Analysis Plot     
     20140914 121944    4.3      N/A  32.9%  77.77    4.32  70.0   TRMM  17.9 -121.7   17.9 -121.7   18.0 -121.2 Analysis Plot     
     20140914 192900   12.3      N/A  11.0% 111.10   12.27  60.0 SSMI15  18.2 -119.1   18.2 -119.1   18.0 -119.2 Analysis Plot     
     20140914 202950    9.9      N/A  27.4% 144.43    9.93  60.0   TRMM  18.2 -118.8   18.1 -118.8   18.1 -118.8 Analysis Plot     
     20140914 211900    5.5      N/A  39.7% 166.65    5.47  60.0 SSMI16  18.3 -118.3   18.0 -118.6   18.0 -118.6 Analysis Plot     
     20140914 215800    1.3      N/A   8.2% 188.87    1.28  60.0 SSMI17  18.4 -118.1   17.9 -118.6   17.9 -118.6 Analysis Plot     
     20140915 000600    2.7      N/A  26.0%  88.88    2.75  60.0 SSMI18  18.5 -117.5   18.0 -117.8   18.0 -117.8 Analysis Plot     
     20140915 083300    2.8      N/A  15.1%  66.66    2.75  65.0 SSMI16  18.6 -115.6   18.6 -115.6   18.6 -115.6 Analysis Plot     
     20140915 112200 -930.0      N/A   N/A  177.76  1275.4  70.0 SSMI18  18.9 -114.3   18.6 -114.7   18.6 -114.7 Analysis Plot     
     20140915 193115 -930.0      N/A   N/A  188.87  1271.7  70.0   TRMM  19.5 -112.6   19.5 -112.6   20.0 -112.7 Analysis Plot     
     20140915 210600   20.4  >65 kts  72.6% 199.98   20.42  70.0 SSMI16  19.6 -112.0   19.5 -112.1   19.5 -112.1 Analysis Plot     
     20140916 104000   18.8      N/A  47.9%  66.66   18.85  70.0 SSMI17  20.8 -109.1   20.9 -108.6   20.9 -108.6 Analysis Plot     
     20140916 125200   -0.0      N/A   N/A     N/A    0.00  70.0 SSMI18  21.1 -108.0   21.8 -107.4   21.8 -107.4 Analysis Plot     
     20140916 210310   -0.0      N/A   N/A     N/A    0.00  60.0 SSMI15  22.3 -105.4   22.3 -105.4   22.3 -105.7 Analysis Plot     
     20140916 231100    2.6      N/A   N/A   44.44    2.57  60.0 SSMI17  22.5 -104.5   22.5 -104.5   22.3 -105.0 Analysis Plot     
     20140917 012300    2.9      N/A   N/A   88.88    2.92  60.0 SSMI18  22.7 -103.8   22.7 -103.8   22.8 -103.5 Analysis Plot     
     20140917 094900 -930.0      N/A   N/A  244.42  1279.9  60.0 SSMI16  23.2 -101.9   23.2 -101.9   22.6 -101.0 Analysis Plot     
     20140917 123900 -930.0      N/A   N/A  299.97  1279.9  60.0 SSMI18  23.4 -101.3   23.4 -101.3   22.9 -100.7 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.