Tropical Storm 22W


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              
     20151001 043947  -11.5      N/A  72.6%  33.33   11.45  25.0  AMSR2  14.1 -124.8   14.1 -124.8   14.3 -124.0 Analysis Plot     
     20151001 094300   -2.0      N/A  49.3%  55.55    2.01  30.0 SSMI17  14.7 -123.5   14.7 -123.5   15.0 -123.0 Analysis Plot     
     20151001 094500   -3.0      N/A  63.0%  88.88    3.04  30.0 SSMI19  14.9 -123.2   14.9 -123.2   15.1 -122.9 Analysis Plot     
     20151001 185758  -42.5      N/A 100.0%  33.33   27.55  35.0    GMI  15.9 -121.5   15.9 -121.5   15.8 -121.2 Analysis Plot     
     20151001 190502  -32.1      N/A 100.0%  44.44   17.14  30.0 SSMI15  15.6 -121.2   15.6 -121.2   15.7 -121.2 Analysis Plot     
     20151001 222100  -32.1      N/A   N/A     N/A    0.00  30.0 SSMI19  15.9 -120.5   15.9 -120.5   16.4 -119.1 Analysis Plot     
     20151001 230100  -32.1      N/A   N/A     N/A    0.00  30.0 SSMI18  16.0 -120.3   16.0 -120.3   16.5 -119.5 Analysis Plot     
     20151002 173526   13.6      N/A  38.4%  99.99   13.62  55.0  AMSR2  17.8 -116.3   17.5 -116.6   17.5 -116.6 Analysis Plot     
     20151003 085144   16.9      N/A  23.3%  55.55   16.90  60.0 SSMI15  19.0 -114.1   19.0 -114.3   19.0 -114.3 Analysis Plot     
     20151003 110000   36.2  >65 kts 100.0%  55.55   21.23  60.0 SSMI19  19.3 -113.5   19.4 -113.5   19.4 -113.5 Analysis Plot     
     20151003 114100   44.8  >65 kts 100.0%  44.44   29.83  60.0 SSMI18  19.4 -113.4   19.4 -113.4   19.4 -113.4 Analysis Plot     
     20151003 181721   57.5  >65 kts 100.0%  44.44   42.55  80.0  AMSR2  19.9 -112.1   19.9 -112.2   19.9 -112.2 Analysis Plot     
     20151003 203557   45.3  >65 kts 100.0%  33.33   30.28  80.0 SSMI15  20.0 -111.9   20.0 -112.0   20.0 -112.0 Analysis Plot     
     20151004 001500   60.1  >85 kts 100.0%  33.33   45.12  95.0 SSMI18  20.5 -111.4   20.5 -111.5   20.5 -111.5 Analysis Plot     
     20151004 083702   65.1  >85 kts 100.0%  33.33   50.08  95.0 SSMI15  21.1 -110.6   21.3 -110.3   21.3 -110.3 Analysis Plot     
     20151004 104800    4.8      N/A   N/A  199.98    4.78 115.0 SSMI19  21.7 -109.9   21.9 -110.0   21.9 -110.0 Analysis Plot     
     20151004 113000   18.1      N/A 100.0%  33.33    3.13 115.0 SSMI18  21.8 -109.8   22.1 -110.0   22.1 -110.0 Analysis Plot     
     20151004 201836   18.1      N/A   N/A     N/A    0.00  80.0 SSMI15  22.5 -108.7   22.5 -108.7   22.5 -107.7 Analysis Plot     
     20151004 232000    0.8      N/A   N/A  155.54     .81  80.0 SSMI19  22.8 -108.3   22.8 -108.3   22.8 -107.6 Analysis Plot     
     20151005 000200    0.2      N/A   N/A  122.21     .17  80.0 SSMI18  22.8 -108.3   22.8 -108.3   23.1 -107.7 Analysis Plot     
     20151005 055531    0.2      N/A   N/A     N/A    0.00  80.0  AMSR2  23.3 -107.8   23.3 -107.8   23.5 -107.2 Analysis Plot     
     20151005 103700    0.2      N/A   N/A     N/A    0.00  80.0 SSMI19  23.8 -107.5   23.8 -107.5   23.7 -106.9 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.