Tropical Storm 14L

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              
     20200820 220851 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  14.3   81.0   14.3   81.0   14.5   82.2 Analysis Plot     
     20200821 094136 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI15  15.4   83.2   15.4   83.2   14.6   83.6 Analysis Plot     
     20200821 111727 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  15.5   83.3   15.5   83.3   14.8   83.9 Analysis Plot     
     20200821 214635   -0.4      N/A  19.2% 111.10     .42  30.0 SSMI16  17.7   84.3   17.7   84.3   17.5   84.6 Analysis Plot     
     20200821 232752   -0.5      N/A   5.5%  99.99     .53  30.0 SSMI16  17.9   84.4   17.9   84.4   17.6   84.6 Analysis Plot     
     20200822 113721 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI16  19.9   85.5   19.9   85.5   19.0   85.5 Analysis Plot     
     20200822 191216 -930.0      N/A   N/A     N/A    0.00  55.0  AMSR2  21.5   85.6   21.5   85.6   20.5   86.1 Analysis Plot     
     20200822 231447 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  22.0   85.8   22.0   85.8   21.8   86.8 Analysis Plot     
     20200823 002245    N/A      N/A   N/A     N/A     N/A  55.0 SSMI18  22.3   85.9   22.3   85.9   22.3   85.6 Analysis Plot     
     20200823 072145    3.7      N/A  39.7% 155.54    3.71  60.0  AMSR2  23.5   86.9   23.5   86.9   22.8   86.3 Analysis Plot     
     20200823 113528 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI16  24.0   87.1   24.0   87.1   23.1   86.5 Analysis Plot     
     20200823 124643 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI18  24.2   87.2   24.2   87.2   23.2   86.8 Analysis Plot     
     20200823 223030    N/A      N/A   N/A     N/A     N/A  65.0 SSMI18  25.9   87.8   25.9   87.8   26.3   87.5 Analysis Plot     
     20200823 225959    2.6      N/A  43.8%  33.33    2.65  65.0 SSMI16  26.0   87.9   26.0   87.9   26.1   87.3 Analysis Plot     
     20200824 001015    N/A      N/A   N/A     N/A     N/A  65.0 SSMI18  26.2   88.0   26.2   88.0   26.3   87.4 Analysis Plot     
     20200824 112224 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  27.8   88.3   27.8   88.3   28.2   88.3 Analysis Plot     
     20200824 122052    2.9      N/A   1.4% 222.20    2.91  55.0 SSMI18  27.9   88.5   27.9   88.5   28.3   88.5 Analysis Plot     
     20200824 235747   -1.1      N/A   N/A   22.22    1.05  35.0 SSMI18  29.2   89.1   29.2   89.1   28.9   89.3 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.