Tropical Storm 22E

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              
     20181014 194847 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  17.4  103.9   17.4  103.9   16.7  103.9 Analysis Plot     
     20181015 010500    N/A      N/A   N/A     N/A     N/A  30.0 SSMI17  17.5  104.3   17.5  104.3   17.1  104.0 Analysis Plot     
     20181015 102951   -1.8      N/A  13.7% 122.21    1.80  35.0    GMI  17.5  104.2   17.5  104.2   17.5  103.8 Analysis Plot     
     20181015 121600   -2.5      N/A  26.0%  99.99    2.47  35.0 SSMI16  17.5  104.2   17.5  104.2   17.8  103.7 Analysis Plot     
     20181015 132200    N/A      N/A   N/A     N/A     N/A  40.0 SSMI18  17.6  104.4   17.6  104.4   18.2  104.0 Analysis Plot     
     20181015 133900 -920.0      N/A 100.0%  11.11     .71  40.0 SSMI17  17.6  104.4   17.6  104.4   18.0  104.3 Analysis Plot     
     20181015 203047   -7.9      N/A  65.8%  55.55    7.91  45.0  AMSR2  18.0  104.5   18.0  104.5   18.4  104.2 Analysis Plot     
     20181016 003500    7.2      N/A  30.1%  44.44    7.16  55.0 SSMI18  18.4  104.6   18.4  104.6   18.6  104.0 Analysis Plot     
     20181016 084210   -1.9      N/A   N/A   44.44    1.88  50.0  AMSR2  18.7  104.5   18.7  104.5   19.1  103.8 Analysis Plot     
     20181016 132500  -12.6      N/A  69.9%  44.44   12.62  40.0 SSMI17  18.6  104.5   18.6  104.5   19.0  104.6 Analysis Plot     
     20181016 210245   -6.3      N/A  19.2% 122.21    6.30  35.0    GMI  19.0  105.0   19.0  105.0   19.5  105.3 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.