Tropical Storm 24E


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              
     20181020 091802  -18.3      N/A 100.0%  33.33    3.27  30.0    GMI  15.1  104.9   15.1  104.9   14.7  105.0 Analysis Plot     
     20181020 103558   -3.0      N/A  12.3% 111.10    2.98  30.0 SSMI15  15.1  105.1   15.1  105.1   15.4  104.7 Analysis Plot     
     20181020 124000   -2.8      N/A  17.8%  99.99    2.77  30.0 SSMI16  15.2  105.1   15.2  105.1   15.6  105.0 Analysis Plot     
     20181020 141400 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  14.8  105.7   15.3  105.4   15.3  105.4 Analysis Plot     
     20181020 204859    N/A      N/A   N/A     N/A     N/A  45.0  AMSR2  15.2  105.7   15.2  105.7   15.2  105.7 Analysis Plot     
     20181021 002300    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16  15.3  105.9   15.3  105.9   15.4  105.6 Analysis Plot     
     20181021 012500    5.5      N/A  16.4%  22.22    5.52  60.0 SSMI17  15.7  106.1   16.0  105.8   16.0  105.8 Analysis Plot     
     20181021 090127   24.9  >65 kts  87.7%  55.55    9.89  70.0  AMSR2  16.2  106.5   16.2  106.3   16.2  106.3 Analysis Plot     
     20181021 140000   31.4  >65 kts  94.5%  66.66   16.36  80.0 SSMI17  16.6  106.7   16.6  106.5   16.6  106.5 Analysis Plot     
     20181021 195203   59.7  >65 kts 100.0%  22.22   44.67  95.0    GMI  16.9  107.0   16.8  106.9   16.8  106.9 Analysis Plot     
     20181022 011300   58.4  >65 kts 100.0%  22.22   43.43 120.0 SSMI17  17.6  107.2   17.4  107.0   17.4  107.0 Analysis Plot     
     20181022 122600   35.6  >65 kts 100.0%  11.11   20.57 135.0 SSMI16  18.4  107.1   18.6  107.1   18.6  107.1 Analysis Plot     
     20181022 133600   31.0  >65 kts 100.0%  11.11   15.98 140.0 SSMI18  19.0  107.2   18.9  107.2   18.9  107.2 Analysis Plot     
     20181022 134600   34.8  >65 kts  98.6% 133.32   19.82 140.0 SSMI17  19.0  107.2   18.9  107.2   18.9  107.2 Analysis Plot     
     20181022 203718   33.9  >65 kts  98.6%  11.11   18.90 140.0  AMSR2  19.6  107.2   19.7  107.2   19.7  107.2 Analysis Plot     
     20181023 010100   40.9  >65 kts 100.0% 122.21   25.93 130.0 SSMI17  20.4  107.2   20.1  107.1   20.1  107.1 Analysis Plot     
     20181023 081716 -930.0      N/A   N/A     N/A    0.00 120.0    GMI  20.7  107.3   20.7  107.2   20.7  107.2 Analysis Plot     
     20181023 084749   51.0  >65 kts 100.0%  77.77   36.03 120.0  AMSR2  20.8  107.3   20.8  107.2   20.8  107.2 Analysis Plot     
     20181023 113100   56.6  >65 kts 100.0%  66.66   41.56 120.0 SSMI16  21.0  107.2   21.0  106.9   21.0  106.9 Analysis Plot     
     20181023 132100   57.9  >65 kts 100.0%  55.55   42.87 110.0 SSMI18  21.3  107.0   21.3  106.9   21.3  106.9 Analysis Plot     
     20181023 133300   45.8  >65 kts 100.0%  66.66   30.78 110.0 SSMI17  21.3  107.0   21.2  106.8   21.2  106.8 Analysis Plot     
     20181024 003700   14.0      N/A  78.1%  22.22   14.04 105.0 SSMI18  22.9  105.8   22.5  105.9   22.5  105.9 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.