Tropical Depression 24W

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              
     20191102 153253 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  13.4 -156.6   13.4 -156.6   13.6 -156.3 Analysis Plot     
     20191102 202608 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  13.8 -156.2   13.8 -156.2   14.6 -155.4 Analysis Plot     
     20191103 004428 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  14.5 -155.6   14.5 -155.6   14.4 -155.1 Analysis Plot     
     20191103 060441   -3.7      N/A  12.3% 155.54    3.72  40.0 SSMI15  15.4 -155.0   15.4 -155.0   14.8 -154.8 Analysis Plot     
     20191103 074655   -2.1      N/A  38.4% 111.10    2.12  40.0 SSMI16  15.6 -154.6   15.6 -154.6   15.1 -154.9 Analysis Plot     
     20191103 075947    N/A      N/A   N/A     N/A     N/A  40.0 SSMI18  15.7 -154.6   15.7 -154.6   15.4 -154.9 Analysis Plot     
     20191103 171826  -16.2      N/A  64.4%  77.77   16.22  50.0 SSMI15  16.4 -153.5   16.4 -153.5   16.6 -153.9 Analysis Plot     
     20191103 193318   -4.7      N/A  47.9%  44.44    4.68  50.0 SSMI16  16.5 -153.4   16.5 -153.4   16.5 -153.8 Analysis Plot     
     20191103 201400    8.1      N/A  11.0%  55.55    8.14  65.0 SSMI18  16.9 -153.4   16.9 -153.4   16.6 -153.8 Analysis Plot     
     20191104 030717   31.1  >65 kts  89.0%  55.55   16.08  75.0  AMSR2  17.4 -153.3   17.6 -153.6   17.6 -153.6 Analysis Plot     
     20191104 073353   39.1  >65 kts 100.0%  44.44   24.09  80.0 SSMI16  18.0 -153.1   18.0 -153.1   17.9 -153.3 Analysis Plot     
     20191104 075659   44.8  >65 kts 100.0%  55.55   29.76  80.0 SSMI18  18.0 -153.1   18.0 -153.1   18.0 -153.3 Analysis Plot     
     20191104 151916   66.5  >85 kts 100.0%  66.66   51.50  85.0  AMSR2  18.6 -152.6   18.6 -152.5   18.6 -152.5 Analysis Plot     
     20191104 174138 -930.0      N/A   N/A     N/A    0.00  85.0 SSMI15  18.7 -152.5   18.7 -152.2   18.7 -152.2 Analysis Plot     
     20191105 003548   85.1  >85 kts 100.0%  55.55   70.13 105.0    GMI  19.1 -151.9   19.1 -151.8   19.1 -151.8 Analysis Plot     
     20191105 065949   77.7  >85 kts 100.0%  44.44   62.65 115.0 SSMI16  19.5 -151.5   19.5 -151.4   19.5 -151.4 Analysis Plot     
     20191105 185710   63.2  >85 kts 100.0%  22.22   48.16 140.0 SSMI16  20.3 -150.6   20.3 -150.7   20.3 -150.7 Analysis Plot     
     20191106 025641   48.6  >65 kts 100.0%  22.22   33.58 150.0  AMSR2  21.0 -150.5   21.0 -150.4   21.0 -150.4 Analysis Plot     
     20191106 110744   64.4  >85 kts 100.0%  33.33   49.36 145.0    GMI  21.7 -150.6   21.5 -150.8   21.5 -150.8 Analysis Plot     
     20191106 185348   65.1  >85 kts 100.0%  44.44   50.06 135.0 SSMI16  22.3 -150.9   22.2 -151.1   22.2 -151.1 Analysis Plot     
     20191107 034037   17.3      N/A  41.1%  44.44   17.31 105.0  AMSR2  23.3 -151.5   23.3 -151.4   23.3 -151.4 Analysis Plot     
     20191107 071436 -930.0      N/A   N/A     N/A    0.00 105.0 SSMI15  23.5 -151.6   23.2 -151.9   23.2 -151.9 Analysis Plot     
     20191107 154805   20.2  >65 kts  61.6%  66.66   20.23  90.0  AMSR2  25.0 -152.3   25.2 -152.5   25.2 -152.5 Analysis Plot     
     20191107 183327   37.1  >65 kts 100.0%  55.55   22.06  90.0 SSMI15  25.2 -152.4   25.6 -152.9   25.6 -152.9 Analysis Plot     
     20191108 145134    9.3      N/A   8.2% 166.65    9.33  60.0  AMSR2  30.1 -160.4   30.1 -160.4   30.4 -159.5 Analysis Plot     
     20191108 182736 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI16  30.4 -161.1   30.4 -161.1   31.0 -160.2 Analysis Plot     
     20191109 015249 -930.0      N/A   N/A     N/A    0.00  45.0  AMSR2  31.4 -161.3   31.4 -161.3   31.0 -161.6 Analysis Plot     
     20191109 045601   -1.7      N/A   N/A   55.55    1.72  45.0 SSMI16  31.5 -162.1   31.5 -162.1   31.0 -162.5 Analysis Plot     
     20191109 053716 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  31.6 -162.3   31.6 -162.3   31.0 -162.8 Analysis Plot     
     20191109 183840 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  32.2 -166.3   32.2 -166.3   31.9 -166.2 Analysis Plot     
     20191109 190604   -1.1      N/A   N/A   22.22    1.15  35.0 SSMI18  32.2 -166.4   32.2 -166.4   31.9 -166.9 Analysis Plot     
     20191110 044253   -1.6      N/A   N/A   77.77    1.65  35.0 SSMI16  32.9 -169.0   32.9 -169.0   32.8 -169.8 Analysis Plot     
     20191110 064430   -1.7      N/A   N/A   33.33    1.72  35.0 SSMI18  33.2 -169.5   33.2 -169.5   32.7 -170.3 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.