Tropical Storm 15W

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              
     20220910 192923 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  20.9 -159.8   20.9 -159.8   21.0 -158.9 Analysis Plot     
     20220911 025624   -4.7      N/A  24.7%  22.22    4.72  30.0  AMSR2  21.3 -159.7   21.3 -159.7   20.8 -159.7 Analysis Plot     
     20220911 050322   -0.3      N/A   N/A   77.77     .28  30.0 SSMI18  21.3 -159.8   21.3 -159.8   21.0 -159.9 Analysis Plot     
     20220911 093112 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  21.4 -160.0   21.4 -160.0   21.3 -159.2 Analysis Plot     
     20220911 150605   -6.7      N/A  15.1% 199.98    6.74  35.0  AMSR2  21.3 -160.8   21.3 -160.8   21.6 -160.7 Analysis Plot     
     20220911 182547 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  21.4 -160.9   21.4 -160.9   21.3 -160.7 Analysis Plot     
     20220911 191625 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  21.5 -161.0   21.5 -161.0   21.1 -161.1 Analysis Plot     
     20220911 214834 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  21.7 -161.2   21.7 -161.2   21.5 -161.7 Analysis Plot     
     20220912 020235 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  21.5 -161.5   21.5 -161.5   21.0 -161.8 Analysis Plot     
     20220912 045018 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  21.6 -161.6   21.6 -161.6   21.2 -161.8 Analysis Plot     
     20220912 091755 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  22.1 -162.1   22.1 -162.1   21.4 -162.4 Analysis Plot     
     20220912 181349  -11.2      N/A  45.2% 122.21   11.23  45.0 SSMI18  23.1 -162.7   23.3 -163.3   23.3 -163.3 Analysis Plot     
     20220912 212216   -6.6      N/A   N/A   88.88    6.56  50.0 SSMI17  23.6 -163.1   23.6 -163.1   23.5 -163.2 Analysis Plot     
     20220913 024457    7.4      N/A  17.8% 111.10    7.41  55.0  AMSR2  24.3 -163.2   24.3 -163.0   24.3 -163.0 Analysis Plot     
     20220913 043723 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  24.5 -163.2   24.4 -163.4   24.4 -163.4 Analysis Plot     
     20220913 074827   11.6      N/A   9.6%  77.77   11.57  55.0 SSMI17  25.0 -163.1   25.0 -163.1   25.0 -163.2 Analysis Plot     
     20220913 145224    3.6      N/A  42.5%  77.77    3.63  60.0  AMSR2  26.3 -162.7   26.3 -162.4   26.3 -162.4 Analysis Plot     
     20220913 212227   11.3      N/A   9.6%  66.66   11.35  65.0 SSMI17  27.7 -162.1   27.4 -162.3   27.4 -162.3 Analysis Plot     
     20220914 015213 -930.0      N/A   N/A     N/A    0.00  65.0  AMSR2  28.7 -162.2   28.8 -162.6   28.8 -162.6 Analysis Plot     
     20220914 073443   11.3      N/A  19.2%  77.77   11.30  65.0 SSMI17  30.1 -162.2   30.1 -162.2   30.4 -161.9 Analysis Plot     
     20220914 153407 -930.0      N/A   N/A     N/A    0.00  70.0  AMSR2  33.3 -162.5   33.0 -162.1   33.0 -162.1 Analysis Plot     
     20220914 201550    7.2      N/A  30.1%  77.77    7.24  70.0 SSMI16  34.9 -163.2   34.5 -162.6   34.5 -162.6 Analysis Plot     
     20220914 210849   11.0      N/A  16.4%  66.66   11.04  65.0 SSMI17  35.2 -163.0   34.8 -162.7   34.8 -162.7 Analysis Plot     
     20220915 023637    6.3      N/A   N/A   44.44    6.31  65.0  AMSR2  37.8 -165.2   38.4 -165.3   38.4 -165.3 Analysis Plot     
     20220915 052910    2.7      N/A   N/A   66.66    2.71  65.0 SSMI18  39.2 -166.0   39.5 -166.0   39.5 -166.0 Analysis Plot     
     20220915 072401    7.8      N/A   5.5% 188.87    7.83  65.0    GMI  40.7 -167.0   42.0 -166.8   42.0 -166.8 Analysis Plot     
     20220915 143450 -930.0      N/A   N/A     N/A    0.00  65.0  AMSR2  45.0 -169.9   45.0 -169.9   45.7 -168.1 Analysis Plot     
     20220915 191335 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI18  47.0 -171.4   47.0 -171.4   47.1 -172.8 Analysis Plot     
     20220915 200231 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI16  47.4 -171.8   47.4 -171.8   48.1 -171.9 Analysis Plot     
     20220915 204851 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI17  47.9 -172.2   47.9 -172.2   48.4 -172.3 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.