Tropical Storm 17W


Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.1.5
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20130916 184135   -4.9      N/A   6.3% 255.53    4.89  25.0 SSMI15  17.6 -132.1   17.6 -132.1   17.6 -132.6 Analysis Plot     
     20130916 202500   -2.6      N/A   4.1% 222.20    2.62  25.0 SSMI16  17.6 -131.9   17.6 -131.9   18.0 -132.1 Analysis Plot     
     20130916 213500   -3.2      N/A  17.8% 311.08    3.24  25.0 SSMI17  17.6 -131.9   17.6 -131.9   17.7 -131.8 Analysis Plot     
     20130917 023823 -930.0      N/A   N/A   33.33    4.58  30.0   TRMM  17.5 -131.5   17.9 -131.1   17.9 -131.1 Analysis Plot     
     20130917 023825 -930.0      N/A   N/A  122.21    4.66  30.0   TRMM  17.5 -131.4   17.5 -131.4   17.3 -131.7 Analysis Plot     
     20130917 084700   -5.9      N/A  21.9% 233.31    5.92  35.0 SSMI17  17.6 -131.1   17.6 -131.1   17.8 -130.9 Analysis Plot     
     20130917 104948   -5.4      N/A  14.1% 122.21    5.37  35.0   TRMM  17.5 -130.9   17.5 -130.9   17.5 -131.7 Analysis Plot     
     20130917 201200   -0.0      N/A   N/A     N/A    0.00  50.0 SSMI16  17.6 -130.1   17.6 -130.1   17.3 -130.6 Analysis Plot     
     20130917 235400   -2.4      N/A  57.5% 122.21    2.40  50.0 SSMI18  17.3 -130.3   17.3 -130.3   17.0 -130.4 Analysis Plot     
     20130918 083500   13.4      N/A  68.5%  77.77   13.43  55.0 SSMI17  17.3 -129.8   17.2 -129.8   17.2 -129.8 Analysis Plot     
     20130918 110600   39.0  >65 kts 100.0%  33.33   23.97  55.0 SSMI18  17.3 -129.5   17.3 -129.7   17.3 -129.7 Analysis Plot     
     20130918 113123 -930.0      N/A   N/A  266.64    1.89  55.0   TRMM  17.3 -129.4   17.3 -129.4   17.2 -129.3 Analysis Plot     
     20130918 210900   52.8  >65 kts 100.0%  44.44   37.77  90.0 SSMI17  17.3 -128.2   16.8 -128.4   16.8 -128.4 Analysis Plot     
     20130918 234100   77.0  >85 kts 100.0%  44.44   62.00  90.0 SSMI18  17.4 -127.8   16.9 -128.4   16.9 -128.4 Analysis Plot     
     20130919 022419 -930.0      N/A   N/A   33.33   64.19  90.0   TRMM  17.1 -127.9   17.0 -128.3   17.0 -128.3 Analysis Plot     
     20130919 022424 -930.0      N/A   N/A   22.22   33.91  90.0   TRMM  17.2 -127.7   17.2 -128.4   17.2 -128.4 Analysis Plot     
     20130919 083414   73.0  >85 kts 100.0%  22.22   58.00  90.0 SSMI15  17.7 -127.1   17.8 -128.0   17.8 -128.0 Analysis Plot     
     20130919 085300   80.0  >85 kts 100.0%  22.22   65.00 120.0 SSMI16  17.8 -127.7   17.9 -127.7   17.9 -127.7 Analysis Plot     
     20130919 105500   73.8  >85 kts 100.0%  22.22   58.78 120.0 SSMI18  18.0 -127.4   18.1 -127.4   18.1 -127.4 Analysis Plot     
     20130919 200907   45.1  >65 kts 100.0%  22.22   30.12 140.0 SSMI15  18.8 -126.2   18.8 -126.2   18.8 -126.2 Analysis Plot     
     20130919 212700   58.0  >65 kts 100.0%  22.22   42.99 140.0 SSMI16  19.0 -125.8   18.9 -125.9   18.9 -125.9 Analysis Plot     
     20130919 232900   72.0  >85 kts 100.0%  22.22   56.97 140.0 SSMI18  19.1 -125.5   19.2 -125.6   19.2 -125.6 Analysis Plot     
     20130920 083333   61.0  >85 kts 100.0%  22.22   46.00 140.0 SSMI15  19.7 -124.6   19.9 -124.4   19.9 -124.4 Analysis Plot     
     20130920 084100   53.8  >65 kts 100.0%  22.22   38.83 135.0 SSMI16  19.9 -124.2   19.8 -124.1   19.8 -124.1 Analysis Plot     
     20130920 195304   40.2  >65 kts 100.0% 133.32   25.20 130.0 SSMI15  20.5 -122.5   20.2 -122.4   20.2 -122.4 Analysis Plot     
     20130920 211400   41.0  >65 kts 100.0%  22.22   25.96 130.0 SSMI16  20.6 -122.2   20.4 -122.2   20.4 -122.2 Analysis Plot     
     20130920 222400   31.2  >65 kts 100.0%  11.11   16.16 130.0 SSMI17  20.7 -122.0   20.5 -122.0   20.5 -122.0 Analysis Plot     
     20130921 020944   21.4  >65 kts  84.9% 122.21   21.39 120.0   TRMM  20.7 -121.7   20.7 -121.3   20.7 -121.3 Analysis Plot     
     20130921 082900   44.5  >65 kts 100.0% 155.54   29.46 120.0 SSMI16  21.0 -120.6   21.3 -120.5   21.3 -120.5 Analysis Plot     
     20130921 093700   -0.0      N/A   N/A     N/A    0.00 120.0 SSMI17  20.9 -120.2   21.1 -120.0   21.1 -120.0 Analysis Plot     
     20130921 121300   16.4      N/A  38.4% 177.76   16.35 120.0 SSMI18  21.0 -119.7   21.3 -119.9   21.3 -119.9 Analysis Plot     
     20130921 210200   30.6  >65 kts  91.8%  99.99   15.58 100.0 SSMI16  21.5 -118.4   21.6 -118.3   21.6 -118.3 Analysis Plot     
     20130921 221000   45.7  >65 kts 100.0%  99.99   30.65 100.0 SSMI17  21.6 -118.2   21.6 -118.1   21.6 -118.1 Analysis Plot     
     20130922 004500   38.7  >65 kts 100.0%  88.88   23.70 100.0 SSMI18  21.8 -117.7   21.8 -117.8   21.8 -117.8 Analysis Plot     
     20130922 091742   41.6  >65 kts 100.0%  77.77   26.65  95.0 SSMI15  22.5 -116.6   22.6 -116.6   22.6 -116.6 Analysis Plot     
     20130922 092600   23.7  >65 kts 100.0%  22.22    8.72  95.0 SSMI17  22.6 -116.2   22.7 -116.0   22.7 -116.0 Analysis Plot     
     20130922 205757    5.4      N/A   N/A   33.33    5.43  80.0 SSMI15  23.4 -113.4   23.4 -113.4   23.6 -113.6 Analysis Plot     
     20130923 003200    3.8      N/A   N/A  111.10    3.79  80.0 SSMI18  23.6 -112.4   23.6 -112.4   23.9 -112.4 Analysis Plot     
     20130923 015411    4.0      N/A   N/A   33.33    3.98  80.0   TRMM  23.7 -112.3   23.7 -112.3   24.2 -112.3 Analysis Plot     
     20130923 082603    4.8      N/A   2.7% 111.10    4.79  80.0   TRMM  24.0 -110.8   24.0 -110.8   24.7 -111.3 Analysis Plot     
     20130923 094500    2.5      N/A   8.2%  77.77    2.54  80.0 SSMI16  24.0 -110.8   24.0 -110.8   24.9 -111.1 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.