Tropical Storm 11E


Passive Microwave (PMW) Intensity Information
Hurricane Intensity Estimation (HIE) Algorithm
Version 8.2.1
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20170804 201320 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  17.9  110.0   17.9  110.0   17.8  110.0 Analysis Plot     
     20170804 230300   -5.3      N/A   N/A   44.44    5.28  30.0 SSMI16  18.0  110.3   18.0  110.3   18.1  110.6 Analysis Plot     
     20170805 015600 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  18.4  110.7   18.4  110.7   18.5  111.1 Analysis Plot     
     20170805 015600   -7.2      N/A   N/A  122.21    7.20  30.0 SSMI17  18.6  111.0   18.6  111.0   18.5  110.8 Analysis Plot     
     20170805 143000   -6.5      N/A   5.5% 222.20    6.51  30.0 SSMI17  19.6  111.3   19.6  111.3   19.6  111.5 Analysis Plot     
     20170805 181304 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  19.9  111.5   19.9  111.5   19.9  111.5 Analysis Plot     
     20170805 205557    N/A      N/A   N/A     N/A     N/A  25.0  AMSR2  20.3  111.7   20.3  111.7   20.3  111.7 Analysis Plot     
     20170806 003000   -2.1      N/A   N/A  155.54    2.10  25.0 SSMI16  20.4  111.8   20.4  111.8   20.4  112.1 Analysis Plot     
     20170806 015900   -3.1      N/A   N/A  188.87    3.12  25.0 SSMI18  20.7  111.9   20.7  111.9   20.3  112.3 Analysis Plot     
     20180804 193950    N/A      N/A   N/A     N/A     N/A  25.0  AMSR2  12.3   94.8   12.3   94.8   12.2   94.6 Analysis Plot     
     20180805 002300   -5.0      N/A   9.6% 188.87    5.03  25.0 SSMI18  12.9   95.7   12.9   95.7   12.7   95.6 Analysis Plot     
     20180805 062640 -930.0      N/A   N/A     N/A    0.00  25.0    GMI  13.2   96.4   13.2   96.4   13.6   96.2 Analysis Plot     
     20180805 075439  -20.2      N/A 100.0%  11.11    5.25  30.0  AMSR2  13.0   96.8   13.0   96.8   13.1   96.3 Analysis Plot     
     20180805 130100 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  13.4   97.1   13.4   97.1   13.6   97.3 Analysis Plot     
     20180805 175309    N/A      N/A   N/A     N/A     N/A  30.0    GMI  13.7   97.8   13.7   97.8   13.3   98.1 Analysis Plot     
     20180805 202434 -930.0      N/A   N/A     N/A    0.00  40.0  AMSR2  13.5   97.9   13.5   97.9   14.0   98.1 Analysis Plot     
     20180806 001100   -3.1      N/A  17.8%  99.99    3.10  45.0 SSMI18  14.1   98.9   14.1   98.9   14.2   99.1 Analysis Plot     
     20180806 012800   -5.9      N/A  26.0% 111.10    5.92  45.0 SSMI17  14.2   99.2   14.2   99.2   14.1   99.3 Analysis Plot     
     20180806 083708   -8.1      N/A  69.9%  55.55    8.06  50.0  AMSR2  15.2  100.3   15.2  100.3   15.3  100.5 Analysis Plot     
     20180806 095649  -18.4      N/A  87.7%  22.22    3.45  50.0 SSMI15  15.4  100.6   15.4  100.6   15.4  100.6 Analysis Plot     
     20180806 122200   -6.1      N/A  67.1%  33.33    6.05  50.0 SSMI16  15.5  100.7   15.5  100.7   15.9  101.1 Analysis Plot     
     20180806 124700   19.4      N/A 100.0%  11.11    4.40  55.0 SSMI18  16.0  101.5   16.0  101.5   16.1  101.4 Analysis Plot     
     20180806 140400 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI17  16.2  101.8   16.2  101.8   16.0  101.9 Analysis Plot     
     20180807 011500 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI17  17.9  104.7   17.9  104.7   17.7  105.7 Analysis Plot     
     20180807 091954 -930.0      N/A   N/A     N/A    0.00  45.0  AMSR2  19.5  107.2   19.5  107.2   19.0  107.1 Analysis Plot     
     20180807 120700 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  19.6  107.3   19.6  107.3   18.0  107.7 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.