Tropical Depression 10W

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              
     20210718 220605   -7.4      N/A  24.7%  55.55    7.38  35.0 SSMI18  20.9 -113.1   20.9 -113.1   20.9 -113.1 Analysis Plot     
     20210718 223919   -9.2      N/A  31.5%  55.55    9.23  35.0 SSMI16  20.9 -113.1   20.9 -113.1   20.9 -113.1 Analysis Plot     
     20210719 003539   -4.3      N/A  15.1%  99.99    4.33  35.0 SSMI17  20.9 -113.0   20.9 -113.0   20.9 -113.0 Analysis Plot     
     20210719 090919  -13.5      N/A  54.8%  33.33   13.50  50.0 SSMI16  21.1 -112.9   21.1 -112.9   21.0 -112.9 Analysis Plot     
     20210719 102235  -13.0      N/A  45.2%  33.33   13.02  50.0 SSMI15  21.1 -112.9   21.1 -112.9   21.1 -112.9 Analysis Plot     
     20210719 110259  -40.0      N/A 100.0%  33.33   25.02  50.0 SSMI17  21.1 -112.9   21.1 -112.9   21.0 -112.9 Analysis Plot     
     20210719 220210   13.2      N/A  47.9%  44.44   13.15  65.0 SSMI18  21.3 -112.4   21.4 -112.5   21.4 -112.5 Analysis Plot     
     20210719 223327   11.9      N/A  43.8%  33.33   11.94  65.0 SSMI16  21.3 -112.4   21.3 -112.6   21.3 -112.6 Analysis Plot     
     20210720 002416   40.9  >65 kts 100.0%  44.44   25.91  65.0 SSMI17  21.4 -112.3   21.3 -112.4   21.3 -112.4 Analysis Plot     
     20210720 085636   15.5      N/A  38.4%  33.33   15.49  70.0 SSMI16  21.5 -112.2   21.5 -112.2   21.5 -112.4 Analysis Plot     
     20210720 104945    2.5      N/A  19.2%  22.22    2.46  70.0 SSMI17  21.5 -112.1   21.5 -112.1   21.7 -112.3 Analysis Plot     
     20210720 183534    3.9      N/A  13.7%  88.88    3.89  55.0  AMSR2  21.7 -111.3   21.7 -111.3   22.1 -111.6 Analysis Plot     
     20210720 215936    4.7      N/A   1.4% 122.21    4.73  55.0 SSMI16  21.8 -111.2   21.8 -111.2   22.3 -111.6 Analysis Plot     
     20210721 000954    1.0      N/A   N/A  133.32     .99  55.0 SSMI17  21.9 -111.1   21.9 -111.1   22.3 -111.5 Analysis Plot     
     20210721 053129   -1.8      N/A   8.2% 188.87    1.76  35.0  AMSR2  22.1 -110.6   22.1 -110.6   22.3 -111.1 Analysis Plot     
     20210722 061345    N/A      N/A   N/A     N/A     N/A  25.0  AMSR2  22.4 -108.7   22.4 -108.7   22.4 -108.7 Analysis Plot     
     20210722 093519    N/A      N/A   N/A     N/A     N/A  25.0 SSMI18  22.4 -108.1   22.4 -108.1   21.9 -108.3 Analysis Plot     
     20210722 112043   -0.1      N/A   N/A  111.10     .06  25.0 SSMI15  22.4 -108.1   22.4 -108.1   22.1 -108.6 Analysis Plot     
     20210722 182327   -6.1      N/A  16.4% 166.65    6.11  25.0  AMSR2  21.6 -107.7   21.6 -107.7   21.0 -107.4 Analysis Plot     
     20210722 225313 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI18  21.0 -107.3   21.0 -107.3   21.7 -106.8 Analysis Plot     
     20210723 092236 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI18  20.5 -107.6   20.5 -107.6   20.5 -108.0 Analysis Plot     
     20210723 095822   -0.6      N/A   N/A   11.11     .65  25.0 SSMI16  20.5 -107.6   20.5 -107.6   20.5 -108.2 Analysis Plot     
     20210723 110317   -3.6      N/A   N/A   33.33    3.63  25.0 SSMI15  20.5 -107.6   20.5 -107.6   20.6 -108.7 Analysis Plot     
     20210723 115042 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI17  20.4 -107.6   20.4 -107.6   20.2 -107.8 Analysis Plot     
     20210723 190809 -930.0      N/A   N/A     N/A    0.00  20.0  AMSR2  19.4 -107.2   19.4 -107.2   19.8 -106.8 Analysis Plot     
     20210723 224102 -930.0      N/A   N/A     N/A    0.00  20.0 SSMI18  19.3 -107.2   19.3 -107.2   20.4 -106.2 Analysis Plot     
     20210723 230451 -930.0      N/A   N/A     N/A    0.00  20.0 SSMI16  19.2 -107.2   19.2 -107.2   20.2 -106.3 Analysis Plot     
     20210724 010811    N/A      N/A   N/A     N/A     N/A  20.0 SSMI17  19.1 -107.2   19.1 -107.2   19.8 -106.3 Analysis Plot     
     20210724 060040   -2.3      N/A   4.1% 255.53    2.31  20.0  AMSR2  18.8 -107.3   18.8 -107.3   18.9 -107.4 Analysis Plot     
     20210724 090946   -2.1      N/A   4.1% 266.64    2.06  20.0 SSMI18  18.6 -107.5   18.6 -107.5   18.4 -107.4 Analysis Plot     
     20210724 094429 -930.0      N/A   N/A     N/A    0.00  20.0 SSMI16  18.6 -107.5   18.6 -107.5   18.8 -107.6 Analysis Plot     
     20210724 104630   -1.0      N/A   2.7% 255.53    1.01  20.0 SSMI15  18.6 -107.5   18.6 -107.5   18.3 -107.3 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.