Tropical Storm 17W


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              
     20150814 064900   -2.6      N/A   6.8%  77.77    2.56  25.0 SSMI17  15.1 -163.0   15.1 -163.0   14.5 -162.6 Analysis Plot     
     20150814 082900   -0.0      N/A   N/A     N/A    0.00  25.0 SSMI18  15.2 -163.0   15.2 -163.0   14.8 -162.5 Analysis Plot     
     20150814 151506   -3.6      N/A  24.7% 155.54    3.59  30.0  AMSR2  15.1 -162.2   15.1 -162.2   14.9 -162.1 Analysis Plot     
     20150814 163858   -4.9      N/A  21.9% 188.87    4.94  30.0 SSMI15  15.1 -162.1   15.1 -162.1   15.0 -161.7 Analysis Plot     
     20150814 193200   -4.9      N/A   N/A     N/A    0.00  35.0 SSMI19  15.1 -161.8   15.1 -161.8   15.1 -162.3 Analysis Plot     
     20150814 210600   -4.9      N/A   N/A     N/A    0.00  35.0 SSMI18  15.1 -161.8   15.1 -161.8   15.3 -161.8 Analysis Plot     
     20150815 020707   -4.9      N/A   N/A     N/A    0.00  35.0  AMSR2  14.9 -162.0   14.9 -162.0   14.8 -161.9 Analysis Plot     
     20150815 081700   -3.5      N/A  28.8% 144.43    3.47  40.0 SSMI18  15.0 -161.8   15.0 -161.8   14.9 -161.7 Analysis Plot     
     20150815 162329   -3.8      N/A   N/A   55.55    3.82  45.0 SSMI15  15.1 -161.6   15.2 -161.5   15.2 -161.5 Analysis Plot     
     20150815 191100    5.3      N/A  26.0%  99.99    5.28  55.0 SSMI17  15.2 -161.2   14.9 -161.3   14.9 -161.3 Analysis Plot     
     20150815 205300    2.6      N/A  28.8% 111.10    2.64  55.0 SSMI18  15.2 -161.1   14.8 -161.0   14.8 -161.0 Analysis Plot     
     20150816 024900   -0.0      N/A   N/A     N/A    0.00  55.0  AMSR2  14.9 -160.8   14.9 -160.8   14.9 -160.8 Analysis Plot     
     20150816 060421   15.5      N/A  27.4%  44.44   15.48  55.0    GMI  14.9 -160.6   14.4 -160.3   14.4 -160.3 Analysis Plot     
     20150816 080500    8.2      N/A  71.2% 133.32    8.24  65.0 SSMI18  14.6 -160.4   14.4 -160.5   14.4 -160.5 Analysis Plot     
     20150816 081100    7.8      N/A  56.2% 133.32    7.77  65.0 SSMI19  14.6 -160.3   14.5 -160.4   14.5 -160.4 Analysis Plot     
     20150816 204100   50.1  >65 kts 100.0%  88.88   35.13  65.0 SSMI18  14.5 -159.1   14.3 -159.4   14.3 -159.4 Analysis Plot     
     20150817 075700   46.0  >65 kts 100.0%  66.66   30.97  85.0 SSMI19  14.8 -158.0   14.7 -158.4   14.7 -158.4 Analysis Plot     
     20150818 023740   57.8  >65 kts 100.0%  44.44   42.85 115.0  AMSR2  16.2 -155.9   16.1 -155.7   16.1 -155.7 Analysis Plot     
     20150818 073700   41.2  >65 kts 100.0%  33.33   26.15 115.0 SSMI17  16.4 -155.1   16.3 -155.3   16.3 -155.3 Analysis Plot     
     20150818 074500   50.6  >65 kts 100.0%  33.33   35.57 115.0 SSMI19  16.4 -155.2   16.4 -155.3   16.4 -155.3 Analysis Plot     
     20150818 092200   37.6  >65 kts 100.0%  33.33   22.60 115.0 SSMI18  16.6 -154.9   16.6 -155.1   16.6 -155.1 Analysis Plot     
     20150818 201900   71.7  >85 kts 100.0%  99.99   56.75 120.0 SSMI19  18.1 -153.5   18.2 -153.4   18.2 -153.4 Analysis Plot     
     20150818 215700   71.7      N/A   N/A     N/A    0.00 120.0 SSMI18  18.3 -153.3   18.3 -153.3   18.5 -153.1 Analysis Plot     
     20150819 032057   -0.0      N/A   N/A     N/A    0.00 130.0  AMSR2  18.9 -152.5   18.9 -152.5   18.9 -152.5 Analysis Plot     
     20150819 072500   81.7  >85 kts 100.0%  77.77   66.67 130.0 SSMI17  19.3 -151.7   19.2 -151.9   19.2 -151.9 Analysis Plot     
     20150819 091000   88.9  >85 kts 100.0%  77.77   73.93 130.0 SSMI18  19.5 -151.5   19.3 -151.5   19.3 -151.5 Analysis Plot     
     20150819 153154   86.3  >85 kts 100.0%  88.88   71.31 140.0  AMSR2  20.0 -150.8   20.2 -150.7   20.2 -150.7 Analysis Plot     
     20150819 195800   66.4  >85 kts 100.0%  88.88   51.36 135.0 SSMI17  20.6 -150.1   20.6 -150.1   20.6 -150.1 Analysis Plot     
     20150819 214300   75.1  >85 kts 100.0%  88.88   60.09 135.0 SSMI18  20.8 -149.9   21.0 -149.8   21.0 -149.8 Analysis Plot     
     20150820 085900   71.0  >85 kts 100.0%  77.77   56.02 135.0 SSMI18  22.2 -148.3   22.2 -148.1   22.2 -148.1 Analysis Plot     
     20150820 213200   55.9  >65 kts 100.0%  77.77   40.92 115.0 SSMI19  23.7 -146.6   23.8 -146.7   23.8 -146.7 Analysis Plot     
     20150821 031044   29.3  >65 kts  65.8%  77.77   29.28 115.0  AMSR2  24.4 -146.2   24.4 -146.2   24.4 -146.2 Analysis Plot     
     20150821 084900   29.3      N/A   N/A     N/A    0.00 110.0 SSMI18  25.1 -146.0   25.1 -146.0   25.1 -146.0 Analysis Plot     
     20150821 211700   12.2      N/A   1.4%  99.99   12.25  90.0 SSMI19  26.9 -145.2   26.8 -145.0   26.8 -145.0 Analysis Plot     
     20150822 035421   -0.0      N/A   N/A     N/A    0.00  85.0  AMSR2  27.5 -144.9   27.5 -144.9   27.5 -144.9 Analysis Plot     
     20150822 083500   15.9      N/A  15.1%  77.77   15.90  80.0 SSMI19  27.9 -145.0   27.9 -145.0   27.9 -145.0 Analysis Plot     
     20150822 160019    8.0      N/A  16.4%  88.88    8.04  80.0  AMSR2  28.8 -145.2   28.8 -145.2   28.8 -145.2 Analysis Plot     
     20150822 210300    7.9      N/A   1.4%  88.88    7.91  80.0 SSMI19  29.2 -145.4   29.2 -145.4   29.2 -145.4 Analysis Plot     
     20150823 030025   11.7      N/A  37.0%  88.88   11.75  80.0  AMSR2  29.9 -145.8   29.6 -145.8   29.6 -145.8 Analysis Plot     
     20150823 082300    9.3      N/A  32.9%  77.77    9.26  80.0 SSMI19  30.4 -146.4   30.2 -146.3   30.2 -146.3 Analysis Plot     
     20150823 204900    3.0      N/A   N/A   88.88    3.03  75.0 SSMI19  31.7 -147.8   31.7 -147.8   31.7 -147.6 Analysis Plot     
     20150824 034342    4.3      N/A   N/A   33.33    4.34  65.0  AMSR2  32.4 -148.8   32.4 -148.6   32.4 -148.6 Analysis Plot     
     20150824 043742    0.8      N/A   N/A   44.44     .82  65.0 SSMI15  32.7 -149.2   32.7 -149.2   32.4 -148.8 Analysis Plot     
     20150824 172431    4.1      N/A   N/A   33.33    4.07  60.0 SSMI15  33.6 -152.5   33.6 -152.5   33.7 -152.6 Analysis Plot     
     20150824 203500    3.2      N/A  11.0% 122.21    3.25  60.0 SSMI19  34.5 -154.1   34.5 -154.1   34.1 -153.6 Analysis Plot     
     20150825 024822    3.2      N/A   N/A     N/A    0.00  60.0  AMSR2  35.7 -156.6   35.7 -156.6   35.0 -156.0 Analysis Plot     
     20150825 075800    3.2      N/A   N/A     N/A    0.00  60.0 SSMI19  37.3 -159.0   37.3 -159.0   37.4 -159.7 Analysis Plot     
     20150825 144954    5.4      N/A  13.7% 244.42    5.38  60.0  AMSR2  38.8 -161.3   38.8 -161.3   39.1 -160.5 Analysis Plot     
     20150825 201400   -0.0      N/A   N/A     N/A    0.00  60.0 SSMI17  39.5 -162.4   39.5 -162.4   39.7 -161.3 Analysis Plot     
     20150825 202400    2.6      N/A   2.7%  66.66    2.64  60.0 SSMI18  39.7 -162.8   39.7 -162.8   39.5 -162.3 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.