Tropical Depression 09S

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              
     20170303 093343  -12.1      N/A  68.5%  33.33   12.08  35.0  AMSR2 -12.9  -56.6  -12.9  -56.6  -12.7  -56.0 Analysis Plot     
     20170303 121454   -0.4      N/A  16.4% 133.32     .36  35.0 SSMI15 -13.0  -56.5  -13.0  -56.5  -13.2  -56.0 Analysis Plot     
     20170303 142400   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI17 -13.1  -56.3  -13.1  -56.3  -13.1  -56.3 Analysis Plot     
     20170304 032010  -15.3      N/A  11.0%  33.33   15.28  45.0    GMI -13.5  -56.0  -13.4  -56.7  -13.4  -56.7 Analysis Plot     
     20170304 101633   -0.0      N/A   N/A     N/A    0.00  55.0  AMSR2 -13.7  -56.4  -13.4  -56.5  -13.4  -56.5 Analysis Plot     
     20170304 125000   -0.0      N/A   N/A     N/A    0.00  55.0 SSMI16 -13.8  -56.4  -13.8  -56.4  -13.4  -56.0 Analysis Plot     
     20170304 153500 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18 -13.9  -56.3  -13.9  -56.3  -14.0  -56.4 Analysis Plot     
     20170304 210758 -930.0      N/A   N/A     N/A    0.00  65.0  AMSR2 -13.8  -56.7  -13.8  -56.7  -13.5  -56.4 Analysis Plot     
     20170305 024500    1.8      N/A  27.4%  99.99    1.83  65.0 SSMI18 -14.0  -56.4  -13.6  -56.2  -13.6  -56.2 Analysis Plot     
     20170305 030300   -0.0      N/A   N/A     N/A    0.00  65.0 SSMI17 -14.0  -56.4  -13.5  -56.0  -13.5  -56.0 Analysis Plot     
     20170305 123000   12.3      N/A  74.0%  44.44   12.34  75.0 SSMI16 -13.5  -55.8  -13.9  -55.5  -13.9  -55.5 Analysis Plot     
     20170305 154241 -930.0      N/A   N/A     N/A    0.00  75.0    GMI -13.6  -55.4  -13.7  -55.2  -13.7  -55.2 Analysis Plot     
     20170305 234455    9.2      N/A  31.5%  77.77    9.23  90.0 SSMI15 -14.0  -54.6  -14.0  -54.4  -14.0  -54.4 Analysis Plot     
     20170306 030957   47.4  >65 kts 100.0%  77.77   32.37  90.0    GMI -14.1  -54.1  -13.8  -54.1  -13.8  -54.1 Analysis Plot     
     20170306 100337   62.6  >85 kts 100.0%  44.44   47.58  90.0  AMSR2 -14.2  -53.4  -14.0  -53.3  -14.0  -53.3 Analysis Plot     
     20170306 131947   -0.0      N/A   N/A     N/A    0.00  90.0 SSMI15 -14.3  -53.2  -14.3  -53.2  -14.5  -53.2 Analysis Plot     
     20170306 152500   60.7  >85 kts 100.0%  44.44   45.71  90.0 SSMI17 -14.5  -52.8  -14.3  -52.7  -14.3  -52.7 Analysis Plot     
     20170307 014100   61.0  >85 kts 100.0%  44.44   46.02 125.0 SSMI16 -14.9  -51.6  -14.6  -51.3  -14.6  -51.3 Analysis Plot     
     20170307 023500   -0.0      N/A   N/A     N/A    0.00 125.0 SSMI17 -15.0  -51.3  -15.0  -51.3  -13.9  -52.1 Analysis Plot     
     20170307 122314   40.7  >65 kts 100.0%  33.33   25.67 125.0 SSMI15 -14.8  -49.9  -14.5  -50.0  -14.5  -50.0 Analysis Plot     
     20170307 153213   17.0      N/A  86.3%  44.44    2.05 125.0    GMI -15.0  -49.4  -14.8  -49.7  -14.8  -49.7 Analysis Plot     
     20170307 213900    8.0      N/A  68.5% 111.10    7.99  90.0  AMSR2 -15.6  -49.1  -15.6  -49.3  -15.6  -49.3 Analysis Plot     
     20170308 012800    2.6      N/A  71.2%  99.99    2.60  90.0 SSMI16 -15.8  -48.9  -16.0  -49.0  -16.0  -49.0 Analysis Plot     
     20170308 025836    0.3      N/A   N/A   44.44     .34  90.0    GMI -16.1  -48.7  -16.2  -48.6  -16.2  -48.6 Analysis Plot     
     20170308 134800   -0.0      N/A   N/A     N/A    0.00  90.0 SSMI16 -17.3  -47.9  -16.7  -47.5  -16.7  -47.5 Analysis Plot     
     20170308 145800 -930.0      N/A   N/A     N/A    0.00  90.0 SSMI17 -17.6  -47.7  -17.3  -47.6  -17.3  -47.6 Analysis Plot     
     20170310 032700   -2.0      N/A   N/A  166.65    1.96  45.0 SSMI18 -26.9  -47.1  -26.9  -47.1  -26.6  -47.5 Analysis Plot     
     20170310 155600   -0.0      N/A   N/A     N/A    0.00  30.0 SSMI18 -28.8  -49.3  -28.8  -49.3  -30.0  -49.7 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.