Tropical Storm 03L


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              
     20210619 074421   -2.7      N/A   N/A   33.33    2.67  40.0  AMSR2  29.5   90.8   29.5   90.8   29.8   91.3 Analysis Plot     
     20210619 102235    N/A      N/A   N/A     N/A     N/A  40.0 SSMI15  29.9   90.5   29.9   90.5   29.9   90.9 Analysis Plot     
     20210619 120652   -1.3      N/A   N/A   66.66    1.30  40.0 SSMI17  29.9   90.5   29.9   90.5   30.0   90.6 Analysis Plot     
     20210619 184440   -1.2      N/A   N/A   66.66    1.17  40.0  AMSR2  31.4   89.2   31.4   89.2   31.6   89.0 Analysis Plot     
     20210619 221129 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  32.2   87.8   32.2   87.8   31.6   87.8 Analysis Plot     
     20210620 015918   -0.0      N/A  13.7% 222.20     .02  35.0 SSMI17  32.6   87.0   32.6   87.0   32.1   87.2 Analysis Plot     
     20210620 100418 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI15  33.4   85.4   33.4   85.4   33.0   85.0 Analysis Plot     
     20210620 115347   -0.9      N/A   N/A   66.66     .95  25.0 SSMI16  33.5   85.2   33.5   85.2   33.7   84.9 Analysis Plot     
     20210620 140936   -0.7      N/A   N/A  155.54     .67  25.0 SSMI17  33.6   84.6   33.6   84.6   33.1   83.7 Analysis Plot     
     20210620 215831   -1.2      N/A   5.5% 111.10    1.17  25.0 SSMI16  34.2   82.5   34.2   82.5   33.7   81.7 Analysis Plot     
     20210621 010359   -1.6      N/A   N/A   55.55    1.64  25.0 SSMI17  34.5   81.3   34.5   81.3   34.4   80.5 Analysis Plot     
     20210621 073019 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  35.5   78.0   35.5   78.0   36.1   79.2 Analysis Plot     
     20210621 111326 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  35.9   76.7   35.9   76.7   35.6   76.5 Analysis Plot     
     20210621 114039   -0.6      N/A   N/A   99.99     .65  35.0 SSMI16  35.9   76.8   35.9   76.8   35.6   77.1 Analysis Plot     
     20210621 135546   -2.0      N/A   2.7% 166.65    2.04  35.0 SSMI17  36.2   76.0   36.2   76.0   35.9   75.9 Analysis Plot     
     20210621 183349 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  37.5   73.8   37.5   73.8   37.0   73.0 Analysis Plot     
     20210621 223847   -2.0      N/A   6.8%  99.99    2.00  40.0 SSMI18  37.7   71.8   37.7   71.8   37.0   71.4 Analysis Plot     
     20210621 235150 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI17  37.9   71.2   37.9   71.2   37.0   70.3 Analysis Plot     
     20210622 063302 -930.0      N/A   N/A     N/A    0.00  40.0  AMSR2  40.8   65.8   40.8   65.8   40.3   64.7 Analysis Plot     
     20210622 105344   -2.1      N/A   N/A   99.99    2.10  40.0 SSMI18  42.0   62.7   42.0   62.7   42.1   63.3 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.