Tropical Storm 02B

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              
     20170527 214825   -3.6      N/A   N/A  133.32    3.62  30.0 SSMI15  14.2  -88.9   14.2  -88.9   14.2  -89.6 Analysis Plot     
     20170527 225700   -3.5      N/A   5.5% 144.43    3.45  30.0 SSMI16  14.2  -88.9   14.2  -88.9   14.1  -89.7 Analysis Plot     
     20170528 014208 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  14.3  -89.1   14.3  -89.1   15.2  -88.9 Analysis Plot     
     20170528 101018   -2.0      N/A  35.6%  77.77    2.04  35.0 SSMI15  15.0  -90.5   15.0  -90.5   15.8  -90.3 Analysis Plot     
     20170528 121600 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  15.4  -90.8   15.4  -90.8   16.0  -91.3 Analysis Plot     
     20170528 213025   -6.2      N/A  20.5% 222.20    6.23  40.0 SSMI15  16.7  -91.0   16.7  -91.0   16.8  -91.1 Analysis Plot     
     20170528 224400   -5.4      N/A   N/A  211.09    5.44  40.0 SSMI16  16.7  -91.0   16.7  -91.0   17.0  -91.2 Analysis Plot     
     20170529 005124 -930.0      N/A   N/A     N/A    0.00  40.0    GMI  17.2  -91.1   17.2  -91.2   17.2  -91.2 Analysis Plot     
     20170529 095720    1.4      N/A  28.8% 188.87    1.38  55.0 SSMI15  18.0  -91.5   18.0  -91.5   18.3  -91.4 Analysis Plot     
     20170529 120300    2.9      N/A  26.0% 222.20    2.88  55.0 SSMI17  18.8  -91.5   18.8  -91.5   18.7  -91.5 Analysis Plot     
     20170529 211241    9.6      N/A  52.1%  55.55    9.60  55.0 SSMI15  20.3  -91.8   20.2  -91.8   20.2  -91.8 Analysis Plot     
     20170530 003600   43.8  >65 kts 100.0%  55.55   28.82  65.0 SSMI17  21.2  -91.8   21.2  -92.0   21.2  -92.0 Analysis Plot     
     20170530 112312    3.5      N/A   N/A   66.66    3.48  65.0    GMI  24.0  -92.3   24.0  -92.3   24.5  -92.1 Analysis Plot     
     20170530 115100    2.7      N/A   N/A   33.33    2.70  65.0 SSMI17  24.0  -92.3   24.0  -92.3   24.6  -92.1 Analysis Plot     
     20170530 211037 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI15  25.8  -92.9   25.8  -92.9   26.2  -93.3 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.