Tropical Depression 02W

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              
     20150207 074300   -1.6      N/A  19.2% 155.54    1.57  25.0 SSMI17  10.5 -157.6   10.5 -157.6   10.7 -158.2 Analysis Plot     
     20150207 083000 -930.0      N/A   N/A  177.76  1274.3  25.0 SSMI18  10.6 -157.5   10.6 -157.5   10.2 -158.0 Analysis Plot     
     20150207 161524 -930.0      N/A   N/A   22.22  1251.8  30.0   TRMM  11.1 -157.5   11.1 -157.5   11.4 -157.4 Analysis Plot     
     20150207 181600   -5.5      N/A  45.2%  99.99    5.52  35.0 SSMI16  11.6 -157.7   11.6 -157.7   11.9 -157.8 Analysis Plot     
     20150207 210600   -4.0      N/A  33.3% 333.30    3.99  35.0 SSMI18  11.8 -157.6   11.8 -157.6   12.0 -157.9 Analysis Plot     
     20150208 061553   -3.3      N/A  20.5% 122.21    3.34  40.0 SSMI15  12.4 -157.1   12.4 -157.1   12.3 -157.6 Analysis Plot     
     20150208 073100   -4.9      N/A  24.7% 144.43    4.88  50.0 SSMI17  12.5 -156.9   12.5 -156.9   12.1 -157.6 Analysis Plot     
     20150208 150437    7.4      N/A  30.1%  33.33    7.44  55.0   TRMM  12.3 -156.6   12.3 -156.6   11.8 -156.9 Analysis Plot     
     20150208 180300   -0.0      N/A   N/A     N/A    0.00  55.0 SSMI16  12.4 -156.4   12.4 -156.4   12.2 -156.7 Analysis Plot     
     20150208 200800   12.8      N/A  69.9%  44.44   12.79  65.0 SSMI17  12.2 -156.5   12.2 -156.5   12.1 -156.8 Analysis Plot     
     20150208 205400   13.1      N/A  50.7%  33.33   13.15  65.0 SSMI18  12.2 -156.5   12.2 -156.5   12.1 -156.9 Analysis Plot     
     20150209 054617    1.5      N/A  50.7%  44.44    1.54  80.0   TRMM  12.5 -156.1   12.7 -156.2   12.7 -156.2 Analysis Plot     
     20150209 175100   34.3  >65 kts  97.3%  33.33   19.33  85.0 SSMI16  13.1 -155.4   13.1 -155.3   13.1 -155.3 Analysis Plot     
     20150209 195400    9.4      N/A  69.9%  33.33    9.38  75.0 SSMI17  13.3 -155.3   13.3 -155.3   13.3 -155.0 Analysis Plot     
     20150210 070700 -930.0      N/A   N/A  166.65  1257.7 105.0 SSMI17  14.4 -154.1   14.4 -154.1   14.1 -154.7 Analysis Plot     
     20150210 093400   29.8  >65 kts  86.3%  22.22   14.75 105.0 SSMI18  14.6 -154.0   14.4 -154.0   14.4 -154.0 Analysis Plot     
     20150210 141919    1.8      N/A  21.9% 177.76    1.83 100.0   TRMM  14.9 -154.0   14.8 -154.1   14.8 -154.1 Analysis Plot     
     20150210 170247 -930.0      N/A   N/A  299.97  1280.0 100.0 SSMI15  15.2 -153.9   15.2 -154.1   15.2 -154.1 Analysis Plot     
     20150210 194100 -930.0      N/A   N/A  311.08  1274.2  85.0 SSMI17  15.9 -154.3   15.5 -153.8   15.5 -153.8 Analysis Plot     
     20150211 063000    5.8      N/A   N/A   77.77    5.82  70.0 SSMI16  16.2 -152.9   16.2 -152.9   15.8 -152.9 Analysis Plot     
     20150211 092200   -4.1      N/A   N/A   77.77    4.05  50.0 SSMI18  15.8 -152.5   15.8 -152.5   16.0 -152.7 Analysis Plot     
     20150211 190600 -930.0      N/A   N/A  311.08  1279.3  25.0 SSMI16  16.5 -152.1   16.5 -152.1   16.8 -152.3 Analysis Plot     
     20150211 215700   -1.3      N/A   N/A   33.33    1.33  25.0 SSMI18  16.8 -152.0   16.8 -152.0   17.4 -151.9 Analysis Plot     
     20150212 061700   -5.6      N/A   N/A  266.64    5.62  25.0 SSMI16  17.4 -152.0   17.4 -152.0   17.5 -152.4 Analysis Plot     
     20150212 091000   -4.6      N/A   N/A   88.88    4.59  25.0 SSMI18  17.8 -152.1   17.8 -152.1   18.0 -152.9 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.