Tropical Depression 12S

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              
     20170323 080035   -6.7      N/A  49.2% 222.20    6.71  40.0    GMI -12.6 -100.7  -12.6 -100.7  -12.9 -100.1 Analysis Plot     
     20170323 113700   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI18 -12.9 -100.9  -12.9 -100.9  -12.7 -100.0 Analysis Plot     
     20170323 181940   -0.0      N/A   N/A     N/A    0.00  35.0  AMSR2 -13.7 -101.3  -13.7 -101.3  -13.4 -100.9 Analysis Plot     
     20170323 212009   -3.0      N/A   N/A  122.21    3.05  35.0 SSMI15 -13.8 -101.4  -13.8 -101.4  -13.5 -100.8 Analysis Plot     
     20170324 070851 -930.0      N/A   N/A     N/A    0.00  35.0    GMI -14.4 -101.7  -14.4 -101.7  -13.9 -101.4 Analysis Plot     
     20170324 101200   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI16 -14.6 -101.0  -14.6 -101.0  -15.0  -99.9 Analysis Plot     
     20170324 112400   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI17 -14.7 -101.0  -14.7 -101.0  -14.8 -100.0 Analysis Plot     
     20170324 183609   -0.0      N/A   N/A     N/A    0.00  35.0    GMI -15.0 -101.2  -15.0 -101.2  -15.2  -99.8 Analysis Plot     
     20170324 210405   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI15 -15.0 -100.5  -15.0 -100.5  -15.1  -99.7 Analysis Plot     
     20170324 211300   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI16 -15.0 -100.5  -15.0 -100.5  -15.2  -99.7 Analysis Plot     
     20170325 001700   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI18 -15.1 -100.5  -15.1 -100.5  -15.2  -99.7 Analysis Plot     
     20170325 100051   -7.3      N/A  46.6%  66.66    7.26  45.0 SSMI15 -15.6  -99.9  -15.6  -99.9  -16.0  -99.6 Analysis Plot     
     20170325 205034   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI15 -16.4  -99.6  -16.4  -99.6  -16.5  -99.8 Analysis Plot     
     20170325 213500 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16 -16.4  -99.6  -16.4  -99.6  -16.3  -99.6 Analysis Plot     
     20170326 000300   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI18 -16.5  -99.3  -16.5  -99.3  -16.3  -99.3 Analysis Plot     
     20170326 070033   -0.0      N/A   N/A     N/A    0.00  45.0    GMI -16.5  -98.9  -16.5  -98.9  -16.4  -98.5 Analysis Plot     
     20170326 094449   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI15 -16.5  -98.9  -16.5  -98.9  -16.4  -98.6 Analysis Plot     
     20170326 123900   -3.3      N/A   N/A  144.43    3.35  40.0 SSMI18 -16.0  -98.9  -16.0  -98.9  -16.0  -98.4 Analysis Plot     
     20170326 235100   -3.8      N/A   N/A  166.65    3.75  35.0 SSMI18 -15.8  -97.9  -15.8  -97.9  -15.8  -98.1 Analysis Plot     
     20170327 122700   -3.1      N/A   N/A  111.10    3.07  35.0 SSMI18 -15.4  -96.9  -15.4  -96.9  -16.1  -97.1 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.