Hurricane 16E

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              
     20211010 124923   -0.5      N/A  26.0% 133.32     .49  30.0 SSMI18  14.6  103.6   14.6  103.6   14.4  103.1 Analysis Plot     
     20211010 130623    N/A      N/A   N/A     N/A     N/A  30.0 SSMI16  14.6  103.7   14.6  103.7   14.5  103.2 Analysis Plot     
     20211010 142524 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  14.7  104.0   14.7  104.0   14.2  103.2 Analysis Plot     
     20211010 224650 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  15.6  106.1   15.6  106.1   15.4  106.5 Analysis Plot     
     20211011 002633 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  15.6  106.3   15.6  106.3   15.6  106.6 Analysis Plot     
     20211011 123643    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18  16.4  107.9   16.4  107.9   16.2  107.9 Analysis Plot     
     20211011 125556 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  16.4  107.9   16.4  107.9   16.1  107.8 Analysis Plot     
     20211011 142844   -4.4      N/A  61.6% 166.65    4.39  45.0    GMI  16.6  108.2   16.6  108.2   16.0  108.4 Analysis Plot     
     20211012 015816    1.9      N/A   5.5% 122.21    1.88  60.0 SSMI17  17.6  108.8   17.6  108.8   17.9  109.3 Analysis Plot     
     20211012 155247 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI17  20.4  108.9   20.4  108.9   20.3  109.8 Analysis Plot     
     20211012 205120    6.0      N/A  15.1%  88.88    6.04  60.0  AMSR2  20.9  109.3   20.9  109.3   20.9  109.1 Analysis Plot     
     20211013 014510    3.6      N/A   9.6% 222.20    3.58  60.0 SSMI17  21.6  108.9   21.6  108.9   21.4  108.9 Analysis Plot     
     20211013 025500 -930.0      N/A   N/A     N/A    0.00  60.0    GMI  21.9  108.7   21.9  108.7   21.5  108.9 Analysis Plot     
     20211013 090045    6.5      N/A  16.4%  77.77    6.51  65.0  AMSR2  22.9  107.5   23.2  107.6   23.2  107.6 Analysis Plot     
     20211013 152558    N/A      N/A   N/A     N/A     N/A  65.0 SSMI17  24.3  106.1   24.3  106.1   24.1  105.5 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.