Hurricane 09L


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              
     20220923 113313 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  14.0   68.9   14.0   68.9   13.9   68.9 Analysis Plot     
     20220923 121841   -3.0      N/A   4.1% 222.20    3.04  30.0 SSMI17  14.1   69.0   14.1   69.0   14.0   69.0 Analysis Plot     
     20220923 180836   -4.9      N/A  15.1% 122.21    4.95  30.0  AMSR2  14.3   70.6   14.3   70.6   14.4   71.0 Analysis Plot     
     20220923 205115    N/A      N/A   N/A     N/A     N/A  30.0 SSMI18  14.7   71.1   14.7   71.1   15.2   72.1 Analysis Plot     
     20220923 214035   -0.8      N/A  13.7% 199.98     .81  30.0 SSMI16  14.7   71.3   14.7   71.3   14.4   71.3 Analysis Plot     
     20220923 223143    N/A      N/A   N/A     N/A     N/A  30.0 SSMI18  14.7   71.4   14.7   71.4   15.3   71.7 Analysis Plot     
     20220924 062222   -2.1      N/A  17.8%  33.33    2.09  35.0  AMSR2  14.8   72.8   14.8   72.8   14.3   73.2 Analysis Plot     
     20220924 104200   -1.1      N/A  16.4%  77.77    1.15  35.0 SSMI18  14.7   73.7   14.7   73.7   14.4   73.5 Analysis Plot     
     20220924 112118   -1.5      N/A  11.0% 111.10    1.49  35.0 SSMI16  14.7   73.8   14.7   73.8   14.2   73.7 Analysis Plot     
     20220924 185226   -2.2      N/A  32.9%  66.66    2.18  40.0  AMSR2  14.4   75.9   14.4   75.9   14.3   76.5 Analysis Plot     
     20220924 203752   -5.8      N/A   N/A   66.66    5.80  40.0 SSMI18  14.3   76.7   14.3   76.7   14.6   76.6 Analysis Plot     
     20220924 222414   -5.7      N/A   N/A   55.55    5.70  40.0 SSMI18  14.3   77.1   14.3   77.1   14.6   76.6 Analysis Plot     
     20220924 235403    N/A      N/A   N/A     N/A     N/A  40.0 SSMI17  14.4   77.4   14.4   77.4   14.6   77.9 Analysis Plot     
     20220925 070521   -2.6      N/A   N/A   11.11    2.61  45.0  AMSR2  14.8   78.6   14.8   78.6   14.5   78.8 Analysis Plot     
     20220925 102907   -3.5      N/A   6.8% 199.98    3.48  45.0 SSMI18  14.9   78.9   14.9   78.9   14.6   78.4 Analysis Plot     
     20220925 133239   -1.3      N/A   N/A   33.33    1.27  45.0 SSMI17  15.2   79.3   15.2   79.3   15.2   79.3 Analysis Plot     
     20220925 225333   -8.1      N/A   N/A   44.44    8.09  40.0 SSMI16  16.4   80.4   16.4   80.4   16.5   80.6 Analysis Plot     
     20220925 234042  -13.5      N/A   8.2%  66.66   13.51  40.0 SSMI17  16.5   80.5   16.5   80.5   16.5   80.6 Analysis Plot     
     20220926 131919   13.9      N/A  60.3%  55.55   13.91  65.0 SSMI17  18.8   82.4   18.7   82.2   18.7   82.2 Analysis Plot     
     20220926 184107   41.8  >65 kts 100.0%  33.33   26.79  70.0  AMSR2  19.6   83.0   20.0   83.3   20.0   83.3 Analysis Plot     
     20220926 215631   52.2  >65 kts 100.0%  66.66   37.22  80.0 SSMI18  20.3   83.2   20.3   83.4   20.3   83.4 Analysis Plot     
     20220926 224025   30.6  >65 kts  94.5%  66.66   15.57  80.0 SSMI16  20.4   83.3   20.3   83.3   20.3   83.3 Analysis Plot     
     20220926 233241   49.6  >65 kts 100.0%  66.66   34.56  80.0 SSMI18  20.6   83.3   20.4   83.4   20.4   83.4 Analysis Plot     
     20220927 065215   90.4  >85 kts 100.0%  44.44   75.44 100.0  AMSR2  22.0   83.7   21.9   83.6   21.9   83.6 Analysis Plot     
     20220927 122229   65.2  >85 kts 100.0%  33.33   50.18 100.0 SSMI16  22.7   83.7   22.6   83.7   22.6   83.7 Analysis Plot     
     20220927 130535   67.1  >85 kts 100.0%  44.44   52.08 100.0 SSMI17  22.8   83.7   22.6   83.5   22.6   83.5 Analysis Plot     
     20220927 214116   42.3  >65 kts 100.0%  33.33   27.32 105.0 SSMI18  24.0   83.2   24.1   83.3   24.1   83.3 Analysis Plot     
     20220927 222750   40.9  >65 kts 100.0%  33.33   25.88 105.0 SSMI16  24.1   83.2   24.1   83.1   24.1   83.1 Analysis Plot     
     20220927 225321   41.0  >65 kts 100.0%  33.33   25.97 105.0 SSMI18  24.2   83.2   24.1   83.3   24.1   83.3 Analysis Plot     
     20220928 073312 -930.0      N/A   N/A     N/A    0.00 105.0  AMSR2  25.5   82.9   25.5   82.9   25.6   83.4 Analysis Plot     
     20220928 113118   87.8  >85 kts 100.0%  77.77   72.80 110.0 SSMI18  25.9   82.8   25.9   82.9   25.9   82.9 Analysis Plot     
     20220928 120926   77.9  >85 kts 100.0%  77.77   62.91 110.0 SSMI16  25.9   82.8   26.0   82.8   26.0   82.8 Analysis Plot     
     20220928 191644   66.8  >85 kts 114.1%  55.55   51.79 135.0    GMI  26.8   82.3   26.7   82.2   26.7   82.2 Analysis Plot     
     20220928 221359   10.5      N/A  42.5%  33.33   10.50 135.0 SSMI16  27.0   81.9   26.9   81.8   26.9   81.8 Analysis Plot     
     20220928 230715   19.1      N/A  54.8%  33.33   19.14 135.0 SSMI18  27.0   81.9   26.9   82.1   26.9   82.1 Analysis Plot     
     20220929 050158 -930.0      N/A   N/A     N/A    0.00 100.0    GMI  27.7   81.3   27.3   81.0   27.3   81.0 Analysis Plot     
     20220929 111826    1.8      N/A   N/A   77.77    1.83  60.0 SSMI18  28.1   80.8   28.1   80.8   28.0   81.0 Analysis Plot     
     20220929 115614    1.5      N/A   1.4% 188.87    1.47  60.0 SSMI16  28.2   80.8   28.2   80.8   28.2   80.8 Analysis Plot     
     20220929 220131    0.3      N/A   N/A  199.98     .32  65.0 SSMI16  29.3   79.9   29.3   79.9   29.1   79.6 Analysis Plot     
     20220929 225534    N/A      N/A   N/A     N/A     N/A  65.0 SSMI18  29.4   79.8   29.4   79.8   29.1   79.9 Analysis Plot     
     20220930 040902    6.6      N/A   9.6% 122.21    6.57  70.0    GMI  30.4   79.3   30.2   78.8   30.2   78.8 Analysis Plot     
     20220930 071926    8.2      N/A   6.8% 155.54    8.17  75.0  AMSR2  30.6   79.1   30.5   78.9   30.5   78.9 Analysis Plot     
     20220930 110528    0.3      N/A   9.6%  99.99     .30  75.0 SSMI18  31.0   79.1   31.0   79.1   31.3   78.9 Analysis Plot     
     20220930 114307    3.9      N/A  15.1%  99.99    3.94  75.0 SSMI16  31.2   79.1   31.2   79.1   31.6   78.7 Analysis Plot     
     20220930 140614 -930.0      N/A   N/A     N/A    0.00  75.0 SSMI17  31.6   79.2   31.6   79.2   32.3   78.9 Analysis Plot     
     20220930 181958    8.6      N/A  21.9%  99.99    8.64  75.0  AMSR2  33.0   79.1   33.1   79.2   33.1   79.2 Analysis Plot     
     20220930 214736    3.2      N/A   N/A  211.09    3.19  75.0 SSMI16  33.9   79.2   33.9   79.2   33.8   78.8 Analysis Plot     
     20220930 224205 -930.0      N/A   N/A     N/A    0.00  75.0 SSMI18  34.1   79.2   34.1   79.2   33.7   79.2 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.