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              
     20181007 071014   -3.8      N/A   N/A   88.88    3.77  30.0  AMSR2  18.5   86.9   18.5   86.9   18.3   87.2 Analysis Plot     
     20181007 125726 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  18.8   86.8   18.8   86.8   17.6   87.0 Analysis Plot     
     20181007 132202 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  18.9   86.8   18.9   86.8   17.4   87.0 Analysis Plot     
     20181007 223344   -6.5      N/A   6.8% 177.76    6.52  45.0    GMI  19.3   85.4   19.3   85.4   19.5   85.9 Analysis Plot     
     20181008 075257 -930.0      N/A   N/A     N/A    0.00  60.0  AMSR2  20.5   85.5   20.5   85.5   20.5   85.1 Analysis Plot     
     20181008 184701    9.3      N/A  67.1% 111.10    9.29  70.0  AMSR2  21.7   85.1   21.7   85.0   21.7   85.0 Analysis Plot     
     20181008 214054   31.0  >65 kts  69.9%  99.99   30.96  70.0    GMI  22.3   85.2   22.3   84.9   22.3   84.9 Analysis Plot     
     20181009 003353   16.1      N/A  52.1%  99.99   16.08  70.0 SSMI18  22.6   85.3   22.5   85.1   22.5   85.1 Analysis Plot     
     20181009 110028 -930.0      N/A   N/A     N/A    0.00  80.0    GMI  24.4   86.0   24.4   86.0   24.3   86.0 Analysis Plot     
     20181009 115651   19.1      N/A  47.9%  55.55   19.14  80.0 SSMI16  24.5   86.0   24.4   86.1   24.4   86.1 Analysis Plot     
     20181009 204131   47.2  >65 kts 100.0%  44.44   32.23 105.0 SSMI15  26.1   86.4   26.0   86.2   26.0   86.2 Analysis Plot     
     20181010 021237   60.2  >85 kts 100.0%  44.44   45.25 110.0 SSMI17  26.8   86.5   26.8   86.4   26.8   86.4 Analysis Plot     
     20181010 073747   57.0  >65 kts 100.0%  33.33   42.05 115.0  AMSR2  28.2   86.5   28.1   86.5   28.1   86.5 Analysis Plot     
     20181010 114044   63.3  >85 kts 100.0%  33.33   48.28 115.0 SSMI16  28.6   86.4   28.8   86.4   28.8   86.4 Analysis Plot     
     20181010 143059   79.2  >85 kts 100.0%  33.33   64.20 125.0 SSMI17  29.2   86.1   29.1   86.3   29.1   86.3 Analysis Plot     
     20181010 213433   46.0  >65 kts 100.0%  22.22   31.05 135.0 SSMI16  30.8   85.2   30.9   85.0   30.9   85.0 Analysis Plot     
     20181011 015942    8.4      N/A  67.1%  77.77    8.40  80.0 SSMI17  31.7   84.2   31.6   84.4   31.6   84.4 Analysis Plot     
     20181011 090541   -6.8      N/A   8.2% 144.43    6.81  50.0 SSMI15  33.6   82.4   33.6   82.4   33.4   82.8 Analysis Plot     
     20181011 105443   -2.1      N/A  11.0% 166.65    2.10  50.0    GMI  33.9   81.9   33.9   81.9   34.0   82.1 Analysis Plot     
     20181011 140958   -2.6      N/A   1.4% 166.65    2.58  45.0 SSMI17  34.4   81.3   34.4   81.3   34.5   81.5 Analysis Plot     
     20181011 212127 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  36.0   79.0   36.0   79.0   35.5   78.6 Analysis Plot     
     20181011 225228 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  36.3   78.4   36.3   78.4   35.8   78.6 Analysis Plot     
     20181011 234917   -0.1      N/A   2.7% 133.32     .10  45.0 SSMI18  36.5   78.0   36.5   78.0   35.8   77.9 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.