Tropical Depression 22W

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              
     20201028 071302  -19.6      N/A 100.0%  33.33    4.64  30.0 SSMI16  16.6 -139.5   16.6 -139.5   16.5 -139.6 Analysis Plot     
     20201028 082122  -23.9      N/A 100.0%  22.22    8.90  30.0 SSMI18  16.6 -139.3   16.6 -139.3   16.6 -139.7 Analysis Plot     
     20201028 204010   -5.8      N/A  38.4%  33.33    5.77  35.0 SSMI16  16.6 -137.4   16.6 -137.4   16.8 -137.4 Analysis Plot     
     20201029 033049   23.8  >65 kts  64.4%  33.33   23.82  55.0    GMI  16.5 -136.0   16.5 -136.0   16.8 -136.1 Analysis Plot     
     20201029 065948   53.2  >65 kts 100.0%  44.44   38.25  55.0 SSMI16  16.5 -135.6   16.5 -135.6   16.8 -135.6 Analysis Plot     
     20201029 065951   42.8  >65 kts 100.0%  44.44   27.85  70.0 SSMI15  16.8 -135.5   16.8 -135.5   16.8 -135.5 Analysis Plot     
     20201029 202659   70.5  >85 kts 100.0%  22.22   55.51 120.0 SSMI16  16.2 -133.1   16.4 -133.4   16.4 -133.4 Analysis Plot     
     20201030 064402   36.2  >65 kts 100.0%  11.11   21.25 125.0 SSMI15  16.0 -131.5   16.3 -131.4   16.3 -131.4 Analysis Plot     
     20201030 100059    N/A      N/A   N/A     N/A     N/A 150.0 SSMI18  16.2 -131.2   16.0 -131.4   16.0 -131.4 Analysis Plot     
     20201030 195038    0.1      N/A  82.2%  88.88     .08 155.0 SSMI15  15.7 -129.6   15.9 -129.6   15.9 -129.6 Analysis Plot     
     20201030 213741   24.4  >65 kts 100.0%  66.66    9.36 155.0 SSMI18  15.6 -129.3   15.6 -129.4   15.6 -129.4 Analysis Plot     
     20201031 032018 -930.0      N/A   N/A     N/A    0.00 160.0    GMI  15.1 -128.1   15.1 -128.1   15.0 -128.4 Analysis Plot     
     20201031 081440   55.5  >65 kts 100.0%  33.33   40.45 155.0 SSMI16  14.7 -127.3   14.4 -127.2   14.4 -127.2 Analysis Plot     
     20201031 094820   54.0  >65 kts 100.0%  22.22   39.01 155.0 SSMI18  14.6 -127.0   14.5 -127.4   14.5 -127.4 Analysis Plot     
     20201031 214152   70.7  >85 kts 100.0%  22.22   55.67 170.0 SSMI16  13.7 -124.4   13.6 -124.3   13.6 -124.3 Analysis Plot     
     20201101 080132    3.1      N/A  17.8% 177.76    3.14  75.0 SSMI16  13.6 -122.2   13.6 -122.2   14.1 -122.1 Analysis Plot     
     20201101 212846    0.1      N/A   N/A  166.65     .15  55.0 SSMI16  14.8 -119.0   14.8 -119.0   14.6 -119.5 Analysis Plot     
     20201102 092255   -1.6      N/A  12.3% 188.87    1.58  30.0 SSMI18  15.3 -117.6   15.3 -117.6   15.4 -117.8 Analysis Plot     
     20201102 205442   -3.1      N/A   N/A  144.43    3.11  35.0 SSMI15  15.1 -115.6   15.1 -115.6   14.9 -116.0 Analysis Plot     
     20201102 224233 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  15.1 -115.4   15.1 -115.4   14.8 -115.5 Analysis Plot     
     20201103 091013   -4.0      N/A   N/A  144.43    4.02  35.0 SSMI18  14.7 -115.0   14.7 -115.0   14.9 -115.2 Analysis Plot     
     20201103 092717 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  14.6 -114.5   14.6 -114.5   14.9 -114.8 Analysis Plot     
     20201103 223940   -3.4      N/A   6.8% 233.31    3.38  35.0 SSMI18  14.5 -113.8   14.5 -113.8   14.5 -114.0 Analysis Plot     
     20201104 091411 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  14.4 -113.2   14.4 -113.2   13.8 -112.9 Analysis Plot     
     20201104 223123 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI16  14.2 -112.1   14.2 -112.1   14.6 -112.2 Analysis Plot     
     20201105 094030   -4.2      N/A   N/A   44.44    4.25  35.0 SSMI15  14.0 -111.2   14.0 -111.2   13.9 -111.3 Analysis Plot     
     20201105 221343   -0.6      N/A   5.5% 255.53     .57  30.0 SSMI18  13.9 -109.7   13.9 -109.7   14.0 -110.1 Analysis Plot     
     20201105 221850   -0.1      N/A   8.2% 222.20     .15  30.0 SSMI16  13.9 -109.7   13.9 -109.7   14.4 -109.9 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.