Tropical Depression 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              
     20180908 042440 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  13.9   35.0   13.9   35.0   14.5   34.8 Analysis Plot     
     20180908 151635 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  14.6   36.0   14.6   36.0   14.2   35.6 Analysis Plot     
     20180908 183340   -6.6      N/A   4.1% 111.10    6.60  30.0 SSMI15  14.6   36.1   14.6   36.1   14.9   36.0 Analysis Plot     
     20180908 203249 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  14.5   36.5   14.5   36.5   15.5   37.0 Analysis Plot     
     20180908 212135    N/A      N/A   N/A     N/A     N/A  35.0 SSMI17  14.5   36.6   14.5   36.6   14.6   37.2 Analysis Plot     
     20180909 081827   -1.1      N/A   6.8%  33.33    1.06  45.0 SSMI16  14.5   37.8   14.5   37.8   14.4   38.0 Analysis Plot     
     20180909 163726    9.0      N/A  76.7%  11.11    9.01  55.0    GMI  14.3   39.4   14.3   39.4   14.5   39.4 Analysis Plot     
     20180909 183629    2.9      N/A  24.7%  33.33    2.89  55.0 SSMI16  14.3   39.5   14.3   39.5   14.5   39.6 Analysis Plot     
     20180909 202100    N/A      N/A   N/A     N/A     N/A  60.0 SSMI18  14.5   40.0   14.5   40.0   14.6   40.0 Analysis Plot     
     20180909 210837    6.5      N/A  15.1%  11.11    6.45  60.0 SSMI17  14.5   40.2   14.5   40.2   14.5   40.3 Analysis Plot     
     20180910 041158    8.4      N/A  71.2%  22.22    8.44  65.0  AMSR2  14.5   42.0   14.6   41.7   14.6   41.7 Analysis Plot     
     20180910 080540    5.0      N/A  13.7%  33.33    5.02  65.0 SSMI16  14.6   42.3   14.6   42.3   14.4   42.4 Analysis Plot     
     20180910 100920    0.3      N/A  31.5%  33.33     .35  65.0 SSMI18  14.7   42.8   14.7   42.8   14.3   42.8 Analysis Plot     
     20180910 110902    2.4      N/A  42.5%  44.44    2.42  65.0 SSMI17  14.7   42.9   14.7   42.9   14.2   42.9 Analysis Plot     
     20180910 164144    2.6      N/A  17.8%  33.33    2.59  65.0  AMSR2  14.7   44.2   14.4   44.5   14.4   44.5 Analysis Plot     
     20180910 181216 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI15  14.4   44.6   14.4   44.6   14.6   45.3 Analysis Plot     
     20180911 102007   22.3  >65 kts 100.0%  33.33    7.35  60.0 SSMI17  14.6   48.2   14.6   48.2   14.6   47.8 Analysis Plot     
     20180911 162638 -930.0      N/A   N/A     N/A    0.00  60.0    GMI  14.6   50.0   14.6   50.0   13.5   50.3 Analysis Plot     
     20180911 162653 -930.0      N/A   N/A     N/A    0.00  60.0    GMI  14.6   50.0   14.6   50.0   14.4   50.5 Analysis Plot     
     20180911 185044 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI15  14.6   50.3   14.6   50.3   14.8   50.8 Analysis Plot     
     20180911 191757    6.4      N/A   2.7% 222.20    6.39  60.0 SSMI16  14.6   50.5   14.6   50.5   14.4   51.2 Analysis Plot     
     20180911 213423    4.7      N/A  10.3% 222.20    4.68  60.0 SSMI18  14.6   51.3   14.6   51.3   14.5   51.9 Analysis Plot     
     20180911 222924    4.0      N/A   6.8% 222.20    3.99  60.0 SSMI17  14.6   51.5   14.6   51.5   14.5   51.9 Analysis Plot     
     20180911 231742    4.4      N/A   9.6% 222.20    4.44  60.0 SSMI18  14.6   51.6   14.6   51.6   14.5   51.9 Analysis Plot     
     20180912 035251    4.3      N/A   1.4% 166.65    4.27  55.0    GMI  14.5   52.5   14.5   52.5   14.4   52.8 Analysis Plot     
     20180912 070627   -6.8      N/A   5.5% 222.20    6.83  50.0 SSMI15  14.5   53.1   14.5   53.1   14.5   53.0 Analysis Plot     
     20180912 092017   -2.1      N/A   N/A  166.65    2.13  50.0 SSMI16  14.5   53.4   14.5   53.4   14.4   53.3 Analysis Plot     
     20180912 163054 -930.0      N/A   N/A     N/A    0.00  50.0  AMSR2  15.1   55.0   15.1   55.0   15.1   54.6 Analysis Plot     
     20180912 190735   -2.2      N/A   N/A   77.77    2.23  50.0 SSMI16  15.3   55.8   15.3   55.8   15.4   56.1 Analysis Plot     
     20180912 204704   -2.2      N/A   N/A   66.66    2.22  50.0 SSMI16  15.4   56.3   15.4   56.3   15.4   56.2 Analysis Plot     
     20180912 213046   -2.7      N/A   N/A  177.76    2.66  50.0 SSMI18  15.4   56.5   15.4   56.5   15.5   56.6 Analysis Plot     
     20180912 220723   -3.4      N/A   N/A  222.20    3.41  50.0 SSMI17  15.4   56.7   15.4   56.7   15.5   56.7 Analysis Plot     
     20180912 234937   -1.8      N/A   N/A  122.21    1.80  50.0 SSMI17  15.4   57.2   15.4   57.2   15.4   56.9 Analysis Plot     
     20180913 090646   -0.8      N/A   N/A   33.33     .83  40.0 SSMI16  15.4   59.5   15.4   59.5   15.7   59.6 Analysis Plot     
     20180913 112225   -0.9      N/A   9.6% 166.65     .90  40.0 SSMI18  15.4   60.1   15.4   60.1   15.2   60.0 Analysis Plot     
     20180913 120721   -2.8      N/A   5.5% 177.76    2.75  40.0 SSMI17  15.4   60.2   15.4   60.2   15.2   60.6 Analysis Plot     
     20180913 202035    N/A      N/A   N/A     N/A     N/A  40.0 SSMI15  14.9   62.7   14.9   62.7   14.9   62.7 Analysis Plot     
     20180913 190446   -3.9      N/A   N/A   22.22    3.88  35.0 SSMI15  14.9   63.0   14.9   63.0   14.8   62.8 Analysis Plot     
     20180914 075328   -4.7      N/A   5.5% 177.76    4.71  30.0 SSMI15  15.0   65.3   15.0   65.3   15.3   65.5 Analysis Plot     
     20180914 165702 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  14.9   67.7   14.9   67.7   15.8   68.4 Analysis Plot     
     20180914 202021   -2.0      N/A   N/A   99.99    2.05  35.0 SSMI16  15.3   67.9   15.3   67.9   15.6   68.0 Analysis Plot     
     20180914 221112   -2.1      N/A   N/A   99.99    2.11  35.0 SSMI16  15.3   68.3   15.3   68.3   15.6   68.0 Analysis Plot     
     20180914 223722   -1.7      N/A   N/A  188.87    1.72  35.0 SSMI18  15.3   68.4   15.3   68.4   15.3   68.7 Analysis Plot     
     20180914 232038   -0.9      N/A   N/A  188.87     .92  35.0 SSMI17  15.3   68.5   15.3   68.5   15.5   68.7 Analysis Plot     
     20180915 002023   -1.9      N/A   N/A  222.20    1.94  35.0 SSMI18  15.3   68.7   15.3   68.7   15.5   68.9 Analysis Plot     
     20180915 010350   -1.0      N/A   N/A  188.87     .99  35.0 SSMI17  15.4   68.9   15.4   68.9   15.4   68.7 Analysis Plot     
     20180915 060912   -4.4      N/A  32.9%  99.99    4.39  30.0  AMSR2  14.7   70.4   14.7   70.4   14.4   70.6 Analysis Plot     
     20180915 081303   -3.4      N/A   N/A   77.77    3.44  30.0 SSMI15  14.8   70.6   14.8   70.6   14.8   70.5 Analysis Plot     
     20180915 101241   -0.8      N/A  17.8% 222.20     .81  30.0 SSMI16  14.8   70.9   14.8   70.9   14.7   70.6 Analysis Plot     
     20180915 123926 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  14.9   71.3   14.9   71.3   14.9   70.6 Analysis Plot     
     20180915 131202   -1.0      N/A   N/A   77.77     .98  30.0 SSMI17  14.9   71.4   14.9   71.4   14.8   71.3 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.