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              
     20210306 225156   -0.2      N/A   N/A   77.77     .20  35.0 SSMI16 -27.4  -96.3  -27.4  -96.3  -28.0  -96.4 Analysis Plot     
     20220324 003040   -2.6      N/A  56.2% 177.76    2.56  35.0 SSMI16 -13.8  -75.4  -13.0  -75.4  -13.0  -75.4 Analysis Plot     
     20220324 023436   12.3      N/A  24.7%  33.33   12.28  60.0 SSMI17 -12.9  -75.6  -12.9  -75.6  -12.9  -75.4 Analysis Plot     
     20220324 112310   39.8  >65 kts 100.0%  33.33   24.79  60.0 SSMI18 -13.1  -75.1  -13.1  -75.1  -13.1  -74.6 Analysis Plot     
     20220324 123300   40.1  >65 kts 100.0%  33.33   25.14  60.0 SSMI16 -13.2  -75.0  -13.2  -75.0  -13.3  -74.5 Analysis Plot     
     20220324 143526    2.3      N/A  64.4%  22.22    2.26  65.0 SSMI17 -13.1  -74.3  -13.1  -74.2  -13.1  -74.2 Analysis Plot     
     20220324 203059   54.5  >65 kts 100.0%  22.22   39.47  65.0  AMSR2 -13.5  -74.0  -13.3  -73.8  -13.3  -73.8 Analysis Plot     
     20220325 001719   53.0  >65 kts 100.0%  22.22   38.05  65.0 SSMI16 -13.7  -73.9  -13.3  -73.8  -13.3  -73.8 Analysis Plot     
     20220325 022132   53.6  >65 kts 100.0%  11.11   38.62  90.0 SSMI17 -13.4  -73.7  -13.2  -73.6  -13.2  -73.6 Analysis Plot     
     20220325 084515   79.1  >85 kts 100.0%  22.22   64.14  90.0  AMSR2 -13.7  -73.4  -13.9  -73.4  -13.9  -73.4 Analysis Plot     
     20220325 121952   49.6  >65 kts 100.0%  22.22   34.60  90.0 SSMI16 -13.9  -73.3  -14.3  -73.4  -14.3  -73.4 Analysis Plot     
     20220325 142205 -930.0      N/A   N/A     N/A    0.00 120.0 SSMI17 -14.4  -73.4  -15.2  -72.9  -15.2  -72.9 Analysis Plot     
     20220326 004249    N/A      N/A   N/A     N/A     N/A 120.0 SSMI18 -15.7  -73.5  -15.4  -73.0  -15.4  -73.0 Analysis Plot     
     20220326 020813    N/A      N/A   N/A     N/A     N/A 110.0 SSMI17 -15.5  -73.4  -15.7  -73.3  -15.7  -73.3 Analysis Plot     
     20220326 120646    N/A      N/A   N/A     N/A     N/A 110.0 SSMI16 -17.2  -74.0  -17.2  -74.3  -17.2  -74.3 Analysis Plot     
     20220326 140836    6.3      N/A   N/A  222.20    6.30  85.0 SSMI17 -17.4  -74.8  -17.5  -74.6  -17.5  -74.6 Analysis Plot     
     20220326 202001   18.1      N/A  32.9%  99.99   18.06  85.0  AMSR2 -18.5  -75.6  -18.9  -75.3  -18.9  -75.3 Analysis Plot     
     20220327 001523    4.2      N/A   N/A   88.88    4.21  85.0 SSMI18 -18.9  -75.8  -19.6  -75.7  -19.6  -75.7 Analysis Plot     
     20220327 015504    N/A      N/A   N/A     N/A     N/A  65.0 SSMI17 -19.7  -76.1  -19.7  -76.1  -20.8  -77.1 Analysis Plot     
     20220327 022720 -930.0      N/A   N/A     N/A    0.00  65.0    GMI -19.9  -76.3  -19.9  -76.3  -20.0  -75.9 Analysis Plot     
     20220327 083058   13.0      N/A  23.3%  55.55   12.98  65.0  AMSR2 -20.7  -77.2  -20.6  -77.2  -20.6  -77.2 Analysis Plot     
     20220327 115339   18.8      N/A  34.2%  44.44   18.83  65.0 SSMI16 -21.1  -77.7  -21.1  -77.7  -21.0  -78.0 Analysis Plot     
     20220327 135515   -6.2      N/A  41.1%  77.77    6.25  50.0 SSMI17 -21.1  -78.3  -21.1  -78.3  -21.3  -78.6 Analysis Plot     
     20220327 233816   -4.2      N/A   4.1%  88.88    4.23  50.0 SSMI16 -21.7  -79.7  -21.7  -79.7  -22.2  -79.8 Analysis Plot     
     20220328 013100   -2.1      N/A  34.2% 122.21    2.07  45.0 SSMI17 -21.5  -79.8  -21.5  -79.8  -22.3  -80.0 Analysis Plot     
     20220328 114030   -8.4      N/A  37.0%  88.88    8.44  45.0 SSMI16 -21.8  -80.8  -21.8  -80.8  -22.5  -81.1 Analysis Plot     
     20220328 134150   -0.5      N/A  15.1%  88.88     .48  45.0 SSMI17 -22.2  -81.6  -22.2  -81.6  -22.2  -81.4 Analysis Plot     
     20220328 200848   -9.3      N/A   8.2%  77.77    9.33  45.0  AMSR2 -22.0  -82.3  -22.0  -82.3  -21.9  -82.1 Analysis Plot     
     20220328 234943 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18 -21.9  -82.4  -21.9  -82.4  -22.1  -82.6 Analysis Plot     
     20220329 005445   -9.5      N/A  26.0%  77.77    9.48  45.0 SSMI17 -21.9  -82.5  -21.9  -82.5  -21.8  -82.5 Analysis Plot     
     20220329 081816  -19.6      N/A  50.7%  44.44   19.62  45.0  AMSR2 -21.6  -82.6  -21.6  -82.7  -21.6  -82.7 Analysis Plot     
     20220329 111640  -11.6      N/A   6.8%  99.99   11.64  45.0 SSMI16 -21.5  -82.7  -21.5  -82.7  -21.3  -82.8 Analysis Plot     
     20220329 120539   -7.3      N/A  37.0%  99.99    7.26  45.0    GMI -21.4  -82.7  -21.4  -82.7  -21.1  -82.7 Analysis Plot     
     20220329 145444   -4.2      N/A  12.3% 122.21    4.16  45.0 SSMI17 -21.3  -82.5  -21.3  -82.5  -21.0  -82.7 Analysis Plot     
     20220329 233556   -1.6      N/A   N/A  199.98    1.65  45.0 SSMI18 -20.8  -82.4  -20.8  -82.4  -20.6  -82.6 Analysis Plot     
     20220330 010554 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17 -20.7  -82.4  -20.7  -82.4  -20.2  -82.6 Analysis Plot     
     20220330 012400   -2.1      N/A  11.0%  44.44    2.09  45.0    GMI -20.0  -81.7  -20.0  -81.7  -19.9  -82.5 Analysis Plot     
     20220330 114719    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18 -19.5  -81.6  -19.5  -81.6  -20.1  -82.4 Analysis Plot     
     20220330 131509    N/A      N/A   N/A     N/A     N/A  45.0 SSMI17 -19.5  -81.6  -19.5  -81.6  -20.0  -83.1 Analysis Plot     
     20220330 195531   -9.5      N/A  52.1% 188.87    9.47  40.0  AMSR2 -19.4  -82.7  -19.5  -83.1  -19.5  -83.1 Analysis Plot     
     20220330 232315   -8.9      N/A   9.6% 111.10    8.86  40.0 SSMI18 -19.3  -82.8  -19.3  -82.8  -19.3  -83.0 Analysis Plot     
     20220331 080636    N/A      N/A   N/A     N/A     N/A  35.0  AMSR2 -19.3  -83.7  -19.3  -83.7  -19.9  -83.7 Analysis Plot     
     20220331 113434   -4.5      N/A  16.4%  22.22    4.50  35.0 SSMI18 -19.3  -83.8  -19.3  -83.8  -19.7  -83.8 Analysis Plot     
     20220331 130138 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17 -19.5  -84.2  -19.5  -84.2  -19.5  -84.6 Analysis Plot     
     20220331 231037    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18 -19.4  -84.5  -19.4  -84.5  -19.5  -85.6 Analysis Plot     
     20220401 002709 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16 -19.4  -84.5  -19.4  -84.5  -19.4  -84.2 Analysis Plot     
     20220401 110338 -930.0      N/A   N/A     N/A    0.00  40.0    GMI -19.3  -83.8  -19.3  -83.8  -19.5  -84.6 Analysis Plot     
     20220401 112145   -1.6      N/A   N/A  199.98    1.56  40.0 SSMI18 -19.3  -83.9  -19.3  -83.9  -19.4  -84.2 Analysis Plot     
     20220401 194307   -1.9      N/A   2.7% 222.20    1.92  35.0  AMSR2 -19.2  -84.4  -19.2  -84.4  -19.0  -84.5 Analysis Plot     
     20220401 225910   -2.3      N/A   N/A  222.20    2.33  35.0 SSMI18 -19.2  -84.3  -19.2  -84.3  -18.7  -84.6 Analysis Plot     
     20220402 002153 -930.0      N/A   N/A     N/A    0.00  35.0    GMI -19.2  -84.2  -19.2  -84.2  -19.1  -84.4 Analysis Plot     
     20220402 020548 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17 -19.2  -84.1  -19.2  -84.1  -19.5  -84.3 Analysis Plot     
     20220402 075436   -5.5      N/A   8.3% 133.32    5.47  35.0  AMSR2 -19.2  -83.7  -19.2  -83.7  -19.0  -84.6 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.