Tropical Depression 06E

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              
     20210714 092118   -3.4      N/A  58.9%  44.44    3.39  30.0  AMSR2  14.3  113.0   14.3  113.0   14.2  113.0 Analysis Plot     
     20210714 125806    N/A      N/A   N/A     N/A     N/A  30.0 SSMI18  14.5  113.5   14.5  113.5   14.4  113.5 Analysis Plot     
     20210714 132607   -4.1      N/A  80.8%  22.22    4.05  30.0 SSMI16  14.5  113.6   14.5  113.6   14.4  113.6 Analysis Plot     
     20210714 152525    N/A      N/A   N/A     N/A     N/A  45.0 SSMI17  14.3  114.0   14.3  114.0   14.3  114.2 Analysis Plot     
     20210714 163311  -15.1      N/A  83.6%  33.33   15.15  45.0    GMI  14.4  114.4   14.4  114.4   14.6  114.5 Analysis Plot     
     20210715 054836   43.8  >65 kts 100.0%  44.44   28.78  60.0    GMI  15.2  117.2   15.2  117.2   15.0  117.2 Analysis Plot     
     20210715 205636   64.1  >85 kts 100.0%  33.33   49.11  85.0  AMSR2  15.2  119.3   15.3  119.4   15.3  119.4 Analysis Plot     
     20210716 002235   40.6  >65 kts 100.0%  22.22   25.61  85.0 SSMI18  15.2  119.8   15.2  119.8   15.2  120.1 Analysis Plot     
     20210716 005613   47.9  >65 kts 100.0%  22.22   32.95  85.0 SSMI16  15.2  119.8   15.2  119.8   15.2  120.1 Analysis Plot     
     20210716 020111   40.2  >65 kts 100.0%  22.22   25.16  85.0 SSMI18  15.2  120.0   15.2  120.0   15.2  120.1 Analysis Plot     
     20210716 043242    7.5      N/A  17.8%  22.22    7.46  95.0 SSMI17  15.2  120.3   15.2  120.3   15.2  120.2 Analysis Plot     
     20210716 140432   58.1  >65 kts 100.0%  22.22   43.09 100.0 SSMI18  15.0  121.5   15.1  121.5   15.1  121.5 Analysis Plot     
     20210716 162325 -930.0      N/A   N/A     N/A    0.00 110.0    GMI  15.0  121.8   15.0  121.8   15.0  121.8 Analysis Plot     
     20210717 004302   37.5  >65 kts 100.0%  22.22   22.49 115.0 SSMI16  14.8  122.8   14.8  122.8   14.6  122.8 Analysis Plot     
     20210717 014830   39.3  >65 kts 100.0%  22.22   24.28 115.0 SSMI18  14.8  122.9   14.8  122.9   14.6  122.9 Analysis Plot     
     20210717 024149   49.1  >65 kts 100.0%  11.11   34.10 115.0 SSMI17  14.8  123.1   14.8  123.1   14.6  123.0 Analysis Plot     
     20210717 042003   40.2  >65 kts 100.0%  11.11   25.24 115.0 SSMI17  14.8  123.3   14.8  123.3   14.6  123.0 Analysis Plot     
     20210717 053837   64.1  >85 kts 100.0%  22.22   49.08 115.0    GMI  14.8  123.6   14.6  123.5   14.6  123.5 Analysis Plot     
     20210717 135221   28.8  >65 kts 100.0%  22.22   13.80 115.0 SSMI18  14.5  124.4   14.5  124.4   14.6  124.3 Analysis Plot     
     20210717 144501   37.4  >65 kts 100.0%  22.22   22.42 115.0 SSMI16  14.5  124.5   14.6  124.3   14.6  124.3 Analysis Plot     
     20210717 162350   37.8  >65 kts 100.0%  22.22   22.84 125.0 SSMI17  14.6  124.7   14.6  124.5   14.6  124.5 Analysis Plot     
     20210718 003211   29.1  >65 kts 100.0%  11.11   14.15 125.0 SSMI16  15.0  125.7   15.0  125.7   15.0  125.7 Analysis Plot     
     20210718 040727   28.4  >65 kts 100.0%  11.11   13.38 120.0 SSMI17  15.2  126.1   15.2  126.1   15.2  126.0 Analysis Plot     
     20210718 132657   33.0  >65 kts 107.7%  11.11   17.96 120.0 SSMI18  15.7  127.7   15.8  127.6   15.8  127.6 Analysis Plot     
     20210718 143150   27.0  >65 kts 100.0%  11.11   12.00 120.0 SSMI16  15.7  127.8   15.7  127.7   15.7  127.7 Analysis Plot     
     20210718 161317   68.3  >85 kts 100.0%  11.11   53.28 115.0    GMI  15.8  128.3   15.9  128.2   15.9  128.2 Analysis Plot     
     20210719 012612 -930.0      N/A   N/A     N/A    0.00 110.0 SSMI18  16.1  129.6   16.1  129.6   16.1  130.2 Analysis Plot     
     20210719 030221    2.1      N/A  65.8%  22.22    2.07  95.0 SSMI18  16.3  130.0   16.3  130.0   16.3  130.0 Analysis Plot     
     20210719 052904    N/A      N/A   N/A     N/A     N/A  95.0    GMI  16.4  130.5   16.1  130.4   16.1  130.4 Analysis Plot     
     20210720 011348    1.6      N/A   N/A   33.33    1.59  55.0 SSMI18  16.0  134.1   16.0  134.1   15.9  134.2 Analysis Plot     
     20210720 025645    4.2      N/A   N/A  133.32    4.19  55.0 SSMI15  16.0  134.1   16.0  134.1   16.0  134.5 Analysis Plot     
     20210720 051955   -2.7      N/A   N/A  111.10    2.66  45.0 SSMI17  16.1  135.1   16.1  135.1   15.8  135.0 Analysis Plot     
     20210720 145311   -3.7      N/A   N/A   88.88    3.75  35.0 SSMI18  15.8  137.8   15.8  137.8   15.7  138.0 Analysis Plot     
     20210720 153746   -3.8      N/A   1.4% 133.32    3.83  35.0 SSMI16  15.8  137.9   15.8  137.9   15.9  138.1 Analysis Plot     
     20210720 172255   -2.9      N/A   N/A  133.32    2.92  35.0 SSMI17  15.7  138.4   15.7  138.4   15.7  138.6 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.