Tropical Storm 06W


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              
     20210621 033600   -3.4      N/A   8.2%  11.11    3.37  30.0  AMSR2  11.4 -146.9   11.4 -146.9   11.7 -147.3 Analysis Plot     
     20210621 081802 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  11.9 -146.3   11.9 -146.3   12.9 -146.1 Analysis Plot     
     20210621 100921   -1.7      N/A  16.4% 199.98    1.67  30.0 SSMI17  12.1 -146.0   12.1 -146.0   12.1 -145.8 Analysis Plot     
     20210621 155110    N/A      N/A   N/A     N/A     N/A  30.0  AMSR2  12.5 -144.6   12.5 -144.6   12.5 -144.6 Analysis Plot     
     20210621 195432 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  12.8 -144.1   12.8 -144.1   12.6 -143.9 Analysis Plot     
     20210621 221055   -1.0      N/A  19.2%  88.88     .98  30.0 SSMI17  12.9 -144.1   12.9 -144.1   12.8 -144.1 Analysis Plot     
     20210622 042046 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  13.7 -142.9   13.7 -142.9   14.1 -143.1 Analysis Plot     
     20210622 081954   -1.8      N/A  42.5%  77.77    1.78  30.0 SSMI15  13.9 -142.6   13.9 -142.6   14.0 -142.3 Analysis Plot     
     20210622 091236   -3.6      N/A   5.5%  44.44    3.60  35.0 SSMI18  14.1 -142.3   14.1 -142.3   13.9 -142.1 Analysis Plot     
     20210622 163343   -5.3      N/A   5.5% 155.54    5.33  35.0  AMSR2  14.8 -141.0   14.8 -141.0   14.7 -140.9 Analysis Plot     
     20210622 195353 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  15.2 -141.1   15.2 -141.1   13.9 -141.4 Analysis Plot     
     20210622 215759 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  14.9 -140.5   14.9 -140.5   15.7 -139.7 Analysis Plot     
     20210623 085949   -5.5      N/A  35.6%  88.88    5.47  40.0 SSMI18  17.3 -140.4   17.3 -140.4   17.3 -141.4 Analysis Plot     
     20210623 204619  -38.6      N/A 100.0%  55.55   23.65  35.0 SSMI18  19.0 -140.1   19.0 -140.1   18.4 -139.9 Analysis Plot     
     20210624 040858    N/A      N/A   N/A     N/A     N/A  40.0  AMSR2  19.0 -139.9   19.0 -139.9   19.0 -139.9 Analysis Plot     
     20210624 073851  -16.0      N/A  31.5% 122.21   15.97  45.0 SSMI16  19.4 -140.0   19.4 -140.0   19.3 -139.9 Analysis Plot     
     20210624 084706  -14.8      N/A  27.4% 111.10   14.82  45.0 SSMI18  19.5 -139.9   19.5 -139.9   19.2 -140.0 Analysis Plot     
     20210624 095324 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17  19.6 -139.9   19.6 -139.9   19.6 -139.9 Analysis Plot     
     20210624 161951   -1.5      N/A  63.0%  33.33    1.54  45.0  AMSR2  20.3 -139.5   20.0 -139.7   20.0 -139.7 Analysis Plot     
     20210624 202418    6.0      N/A  80.8%  22.22    5.99  55.0 SSMI18  20.5 -139.6   20.5 -139.6   20.6 -139.5 Analysis Plot     
     20210624 205710 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  20.6 -139.5   20.6 -139.4   20.6 -139.4 Analysis Plot     
     20210625 051050    8.0      N/A  35.6%  33.33    8.04  60.0    GMI  21.8 -139.2   21.8 -139.2   21.9 -139.2 Analysis Plot     
     20210625 205631    2.8      N/A  37.0% 166.65    2.83  60.0 SSMI16  23.7 -138.9   24.3 -139.1   24.3 -139.1 Analysis Plot     
     20210625 225742    1.9      N/A  28.8% 166.65    1.87  65.0 SSMI17  24.4 -139.7   24.3 -139.4   24.3 -139.4 Analysis Plot     
     20210626 035827    5.1      N/A  53.4%  44.44    5.13  65.0  AMSR2  25.5 -139.9   25.5 -140.5   25.5 -140.5 Analysis Plot     
     20210626 085432    3.3      N/A  39.7%  22.22    3.35  60.0 SSMI16  26.4 -140.2   26.4 -140.2   25.9 -140.3 Analysis Plot     
     20210626 092642    4.3      N/A  15.1% 177.76    4.28  60.0 SSMI17  26.6 -140.2   26.6 -140.2   26.5 -140.0 Analysis Plot     
     20210626 160550    5.8      N/A   N/A  122.21    5.80  55.0  AMSR2  28.2 -140.9   28.2 -140.9   28.1 -140.8 Analysis Plot     
     20210626 201006    3.2      N/A   8.2% 133.32    3.21  55.0 SSMI18  29.0 -141.3   29.0 -141.3   28.6 -140.8 Analysis Plot     
     20210626 203143   -4.1      N/A   9.6% 166.65    4.06  40.0 SSMI16  28.7 -141.2   28.7 -141.2   28.6 -140.8 Analysis Plot     
     20210626 224419   -2.6      N/A   N/A  144.43    2.59  40.0 SSMI17  29.4 -141.6   29.4 -141.6   29.3 -141.0 Analysis Plot     
     20210627 080847   -3.3      N/A  17.8% 133.32    3.27  35.0 SSMI18  32.3 -142.9   32.3 -142.9   31.4 -143.2 Analysis Plot     
     20210627 084119   -4.1      N/A  13.7% 155.54    4.09  35.0 SSMI16  32.5 -143.1   32.5 -143.1   31.6 -143.2 Analysis Plot     
     20210627 091309   -3.5      N/A   2.7% 255.53    3.46  35.0 SSMI17  32.7 -143.2   32.7 -143.2   32.5 -142.9 Analysis Plot     
     20210627 182355  -12.2      N/A  16.4% 299.97   12.23  35.0    GMI  36.3 -146.4   36.3 -146.4   36.3 -146.7 Analysis Plot     
     20210627 194653   -5.6      N/A  12.7% 333.30    5.56  35.0 SSMI18  36.5 -146.6   36.5 -146.6   36.3 -146.9 Analysis Plot     
     20210627 201750   -6.0      N/A  11.9% 333.30    6.01  35.0 SSMI16  36.7 -146.8   36.7 -146.8   36.5 -147.3 Analysis Plot     
     20210627 223118   -3.5      N/A   5.5% 255.53    3.47  35.0 SSMI17  37.4 -147.7   37.4 -147.7   37.6 -147.8 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.