Tropical Depression 22S

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              
     20200313 125553   -6.9      N/A   N/A   33.33    6.94  35.0 SSMI15 -14.5  -52.2  -14.5  -52.2  -14.4  -52.0 Analysis Plot     
     20200313 131029   -2.2      N/A  37.0%  77.77    2.17  35.0 SSMI16 -14.6  -52.2  -14.6  -52.2  -14.7  -51.4 Analysis Plot     
     20200313 161701  -31.9      N/A 100.0%  11.11   16.95  35.0    GMI -14.8  -52.1  -14.8  -52.1  -14.6  -51.5 Analysis Plot     
     20200314 053342 -930.0      N/A   N/A     N/A    0.00  45.0    GMI -15.0  -51.8  -15.0  -51.8  -14.6  -51.0 Analysis Plot     
     20200314 130134    6.1      N/A  39.7%  44.44    6.08  60.0 SSMI16 -15.1  -50.9  -14.8  -51.2  -14.8  -51.2 Analysis Plot     
     20200314 142755   23.5  >65 kts  45.2%  77.77   23.54  60.0 SSMI18 -15.1  -50.9  -15.1  -51.0  -15.1  -51.0 Analysis Plot     
     20200315 021142   18.2      N/A  28.8% 122.21   18.24  65.0 SSMI18 -15.0  -51.4  -14.8  -51.4  -14.8  -51.4 Analysis Plot     
     20200315 044054   12.3      N/A  20.3%  99.99   12.31  65.0    GMI -15.1  -51.5  -14.9  -51.7  -14.9  -51.7 Analysis Plot     
     20200315 124836 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI16 -15.1  -52.3  -15.1  -52.3  -14.9  -52.3 Analysis Plot     
     20200316 020119   17.2      N/A  52.1%  66.66   17.23  80.0 SSMI18 -15.7  -53.8  -15.4  -53.4  -15.4  -53.4 Analysis Plot     
     20200317 015011   64.1  >85 kts 100.0%  55.55   49.08  80.0 SSMI18 -18.0  -58.7  -18.0  -58.7  -18.0  -58.7 Analysis Plot     
     20200317 122210   16.8      N/A 100.0%  22.22    1.79 100.0 SSMI16 -20.0  -61.8  -20.0  -61.8  -20.9  -62.1 Analysis Plot     
     20200317 135137 -930.0      N/A   N/A     N/A    0.00 100.0 SSMI18 -20.3  -62.2  -20.3  -62.2  -21.3  -62.8 Analysis Plot     
     20200317 235553 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI16 -21.7  -64.5  -21.7  -64.5  -22.5  -65.1 Analysis Plot     
     20200318 013608    5.6      N/A   N/A  188.87    5.57  70.0 SSMI18 -21.9  -64.9  -21.9  -64.9  -21.8  -64.9 Analysis Plot     
     20200318 034125 -930.0      N/A   N/A     N/A    0.00  70.0    GMI -22.2  -65.5  -22.2  -65.5  -22.4  -65.5 Analysis Plot     
     20200318 093845    N/A      N/A   N/A     N/A     N/A  55.0  AMSR2 -23.0  -66.8  -23.0  -66.8  -23.8  -67.0 Analysis Plot     
     20200318 115444    N/A      N/A   N/A     N/A     N/A  55.0 SSMI16 -23.2  -67.1  -23.2  -67.1  -24.3  -67.5 Analysis Plot     
     20200318 140846 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18 -23.4  -67.5  -23.4  -67.5  -24.3  -67.9 Analysis Plot     
     20200318 203435    N/A      N/A   N/A     N/A     N/A  45.0  AMSR2 -25.0  -69.7  -25.0  -69.7  -25.2  -69.7 Analysis Plot     
     20200319 012325 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18 -25.3  -70.3  -25.3  -70.3  -25.6  -70.6 Analysis Plot     
     20200319 032440    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16 -25.4  -70.4  -25.4  -70.4  -25.7  -70.6 Analysis Plot     
     20200319 123707 -930.0      N/A   N/A     N/A    0.00  40.0    GMI -26.1  -72.0  -26.1  -72.0  -26.0  -72.2 Analysis Plot     
     20200319 130741   -2.8      N/A   N/A  211.09    2.75  40.0 SSMI16 -26.0  -71.9  -26.0  -71.9  -26.1  -71.9 Analysis Plot     
     20200319 233307   -1.0      N/A   N/A  199.98    1.00  30.0 SSMI16 -27.2  -73.6  -27.2  -73.6  -27.1  -73.3 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.