Tropical Storm 17W


Passive Microwave (PMW) Intensity Information
Hurricane Intensity Estimation (HIE) Algorithm
Version 9.0
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20180802 194732 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI16  18.7 -150.6   18.7 -150.6   18.1 -150.8 Analysis Plot     
     20180802 212858 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI18  18.8 -150.4   18.8 -150.4   19.0 -150.8 Analysis Plot     
     20180803 060124   -5.6      N/A  16.4% 233.31    5.60  30.0 SSMI15  18.0 -150.0   18.0 -150.0   18.4 -150.2 Analysis Plot     
     20180803 060451   -1.1      N/A  24.7% 111.10    1.08  30.0 SSMI16  18.0 -149.9   18.0 -149.9   17.6 -150.1 Analysis Plot     
     20180803 091418    N/A      N/A   N/A     N/A     N/A  35.0 SSMI18  18.2 -150.3   18.2 -150.3   17.8 -150.0 Analysis Plot     
     20180803 192427    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16  19.2 -149.4   19.2 -149.4   18.9 -149.0 Analysis Plot     
     20180803 211632   -0.1      N/A  21.9% 122.21     .14  50.0 SSMI18  19.6 -149.1   19.6 -149.1   19.0 -149.3 Analysis Plot     
     20180804 014446   -8.2      N/A  28.8%  11.11    8.18  50.0    GMI  20.3 -148.7   20.3 -148.7   20.3 -148.8 Analysis Plot     
     20180804 060002    3.1      N/A   3.1% 144.43    3.13  55.0 SSMI15  20.6 -148.8   20.6 -148.8   20.4 -148.8 Analysis Plot     
     20180804 150343    8.3      N/A  82.2%  22.22    8.27  70.0    GMI  22.2 -147.9   22.1 -147.9   22.1 -147.9 Analysis Plot     
     20180804 152424   43.6  >65 kts 100.0%  22.22   28.55  70.0  AMSR2  22.3 -147.8   22.2 -147.9   22.2 -147.9 Analysis Plot     
     20180804 171819    3.8      N/A   N/A   22.22    3.81  70.0 SSMI15  22.5 -147.7   22.6 -147.9   22.6 -147.9 Analysis Plot     
     20180804 190854    1.1      N/A  68.5%  22.22    1.06  70.0 SSMI16  22.7 -147.6   22.5 -147.7   22.5 -147.7 Analysis Plot     
     20180804 210425   23.6  >65 kts  89.0%  22.22    8.57  75.0 SSMI18  22.8 -147.6   22.7 -147.6   22.7 -147.6 Analysis Plot     
     20180804 221257    N/A      N/A   N/A     N/A     N/A  75.0 SSMI17  23.0 -147.5   22.8 -147.4   22.8 -147.4 Analysis Plot     
     20180805 054034   13.3      N/A  24.7%  66.66   13.35  75.0 SSMI16  23.7 -147.1   23.9 -147.6   23.9 -147.6 Analysis Plot     
     20180805 083850    7.4      N/A  15.1%  66.66    7.38  75.0 SSMI18  24.3 -147.4   24.4 -147.6   24.4 -147.6 Analysis Plot     
     20180805 185552    9.0      N/A  45.2%  88.88    9.01  80.0 SSMI16  25.7 -146.5   25.8 -146.8   25.8 -146.8 Analysis Plot     
     20180805 220840   10.6      N/A   2.7%  77.77   10.60  80.0 SSMI17  26.1 -146.3   26.1 -146.3   26.1 -146.4 Analysis Plot     
     20180806 095334 -930.0      N/A   N/A     N/A    0.00  80.0 SSMI17  27.9 -145.8   27.9 -145.7   27.9 -145.7 Analysis Plot     
     20180806 145502 -930.0      N/A   N/A     N/A    0.00  70.0    GMI  29.2 -145.3   29.0 -145.1   29.0 -145.1 Analysis Plot     
     20180806 182614    1.8      N/A   N/A   55.55    1.75  70.0 SSMI15  29.7 -145.0   29.8 -145.0   29.8 -145.0 Analysis Plot     
     20180806 215601   14.3      N/A   N/A   55.55   14.30  65.0 SSMI17  30.1 -144.7   30.1 -144.6   30.1 -144.6 Analysis Plot     
     20180807 003916    9.8      N/A  34.2%  55.55    9.75  65.0    GMI  30.6 -144.4   30.5 -144.1   30.5 -144.1 Analysis Plot     
     20180807 064655   18.9      N/A  24.7%  44.44   18.90  70.0 SSMI15  31.1 -143.8   31.1 -143.9   31.1 -143.9 Analysis Plot     
     20180807 093933   14.7      N/A  24.7%  33.33   14.71  90.0 SSMI17  31.7 -143.6   31.6 -143.7   31.6 -143.7 Analysis Plot     
     20180807 174423    2.6      N/A   N/A  122.21    2.58  85.0 SSMI15  32.6 -142.4   32.9 -142.3   32.9 -142.3 Analysis Plot     
     20180807 202342 -930.0      N/A   N/A     N/A    0.00  85.0 SSMI16  32.7 -142.1   33.1 -141.7   33.1 -141.7 Analysis Plot     
     20180807 220638    2.3      N/A  11.0% 144.43    2.33  85.0 SSMI18  32.8 -142.0   33.3 -141.7   33.3 -141.7 Analysis Plot     
     20180808 063156    2.6      N/A   N/A   55.55    2.60  80.0 SSMI15  33.8 -141.5   33.8 -141.5   33.7 -141.6 Analysis Plot     
     20180808 064055    1.6      N/A   N/A   44.44    1.57  80.0 SSMI16  34.0 -141.4   34.0 -141.4   33.8 -141.5 Analysis Plot     
     20180808 101720    N/A      N/A   N/A     N/A     N/A  80.0 SSMI18  34.2 -141.2   34.2 -141.2   33.8 -141.3 Analysis Plot     
     20180808 144550    9.1      N/A   1.4%  33.33    9.09  70.0    GMI  34.9 -141.3   34.8 -141.1   34.8 -141.1 Analysis Plot     
     20180808 172716 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI15  35.3 -141.3   35.0 -140.4   35.0 -140.4 Analysis Plot     
     20180808 195900 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI16  35.5 -141.2   35.5 -141.2   35.6 -139.8 Analysis Plot     
     20180808 214531 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI18  35.8 -141.3   35.8 -141.3   36.3 -140.0 Analysis Plot     
     20180808 230854    N/A      N/A   N/A     N/A     N/A  70.0 SSMI17  36.0 -141.4   36.0 -141.4   35.8 -140.8 Analysis Plot     
     20180809 033620    2.4      N/A   N/A   11.11    2.40  65.0  AMSR2  36.8 -141.5   36.8 -141.5   36.7 -141.3 Analysis Plot     
     20180809 061813    N/A      N/A   N/A     N/A     N/A  65.0 SSMI15  37.0 -141.7   37.0 -141.7   36.5 -142.0 Analysis Plot     
     20180809 062742    N/A      N/A   N/A     N/A     N/A  65.0 SSMI16  37.2 -141.9   37.2 -141.9   36.4 -142.0 Analysis Plot     
     20180809 100445 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  37.9 -142.4   37.9 -142.4   36.8 -142.4 Analysis Plot     
     20180809 172442 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI15  38.6 -144.5   38.6 -144.5   38.2 -145.0 Analysis Plot     
     20180809 183657 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  38.6 -144.5   38.6 -144.5   39.3 -144.4 Analysis Plot     
     20180809 194500 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  38.8 -144.9   38.8 -144.9   39.2 -144.2 Analysis Plot     
     20180809 214147 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  39.1 -145.6   39.1 -145.6   39.6 -145.5 Analysis Plot     
     20180809 225519 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17  39.3 -146.0   39.3 -146.0   39.6 -145.7 Analysis Plot     
     20180809 233604 -930.0      N/A   N/A     N/A    0.00  45.0    GMI  39.5 -146.5   39.5 -146.5   40.3 -146.5 Analysis Plot     
     20180810 024239   -0.2      N/A   N/A   11.11     .18  45.0  AMSR2  39.9 -147.6   39.9 -147.6   40.5 -148.4 Analysis Plot     
     20180810 060338    N/A      N/A   N/A     N/A     N/A  45.0 SSMI15  40.2 -148.4   40.2 -148.4   40.0 -149.6 Analysis Plot     
     20180810 061429 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  40.4 -149.2   40.4 -149.2   40.6 -149.5 Analysis Plot     
     20180810 092815 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  40.7 -151.0   40.7 -151.0   41.2 -151.2 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.