Tropical Depression 04S


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              
     20181110 075031  -16.6      N/A 100.0%  11.11    1.64  35.0  AMSR2  -5.5  -90.7   -5.5  -90.7   -5.4  -89.9 Analysis Plot     
     20181110 094840 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  -5.5  -90.7   -5.5  -90.7   -5.4  -89.9 Analysis Plot     
     20181110 123659    N/A      N/A   N/A     N/A     N/A  35.0 SSMI18  -5.5  -90.7   -5.5  -90.7   -5.8  -89.5 Analysis Plot     
     20181110 124214 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  -5.5  -90.7   -5.5  -90.7   -5.3  -89.8 Analysis Plot     
     20181110 222609  -25.3      N/A  86.3%  33.33   10.33  35.0 SSMI15  -5.6  -89.4   -5.3  -89.2   -5.3  -89.2 Analysis Plot     
     20181110 231354    N/A      N/A   N/A     N/A     N/A  35.0 SSMI16  -5.6  -89.3   -5.3  -89.1   -5.3  -89.1 Analysis Plot     
     20181111 015958  -18.3      N/A  49.3%  44.44   18.33  35.0 SSMI17  -5.5  -89.3   -5.5  -88.7   -5.5  -88.7 Analysis Plot     
     20181111 191933   -0.2      N/A  35.6%  33.33     .24  40.0  AMSR2  -5.4  -89.1   -5.4  -89.1   -5.2  -88.8 Analysis Plot     
     20181111 214701    N/A      N/A   N/A     N/A     N/A  40.0 SSMI15  -5.4  -89.1   -5.4  -89.1   -5.2  -88.6 Analysis Plot     
     20181111 225358    N/A      N/A   N/A     N/A     N/A  40.0 SSMI16  -5.4  -89.1   -5.4  -89.1   -5.3  -88.6 Analysis Plot     
     20181112 010224   -1.2      N/A  60.3%  44.44    1.17  40.0    GMI  -5.5  -89.2   -5.3  -88.6   -5.3  -88.6 Analysis Plot     
     20181112 073750   -3.3      N/A  34.2%  22.22    3.30  40.0  AMSR2  -5.9  -89.3   -5.9  -89.3   -6.1  -89.1 Analysis Plot     
     20181112 121155   -1.7      N/A  24.7%  22.22    1.73  40.0 SSMI18  -6.1  -89.3   -6.1  -89.3   -6.0  -88.6 Analysis Plot     
     20181112 123317    N/A      N/A   N/A     N/A     N/A  40.0    GMI  -6.1  -89.3   -6.1  -89.3   -6.1  -89.2 Analysis Plot     
     20181112 214502   -2.5      N/A   N/A   44.44    2.48  40.0 SSMI15  -6.7  -89.3   -6.7  -89.3   -6.9  -89.7 Analysis Plot     
     20181112 123317    N/A      N/A   N/A     N/A     N/A  40.0    GMI  -6.1  -89.3   -6.1  -89.3   -6.1  -89.2 Analysis Plot     
     20181113 110005 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI15  -7.2  -90.3   -7.2  -90.3   -7.0  -90.0 Analysis Plot     
     20181113 115927   -1.0      N/A   N/A  177.76     .96  30.0 SSMI18  -7.2  -90.4   -7.2  -90.4   -7.5  -91.0 Analysis Plot     
     20181113 134343 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  -7.2  -90.4   -7.2  -90.4   -7.4  -90.3 Analysis Plot     
     20181118 105355    N/A      N/A   N/A     N/A     N/A  45.0 SSMI15 -12.5  -83.9  -12.5  -83.9  -12.8  -84.0 Analysis Plot     
     20181118 123804   -0.8      N/A  13.7% 144.43     .76  45.0 SSMI18 -12.7  -83.6  -12.7  -83.6  -13.1  -83.5 Analysis Plot     
     20181118 192904  -27.2      N/A 100.0%  22.22   12.20  50.0  AMSR2 -13.5  -82.0  -14.2  -82.2  -14.2  -82.2 Analysis Plot     
     20181118 215713 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI15 -13.6  -81.8  -13.6  -81.8  -14.0  -82.2 Analysis Plot     
     20181118 230124   -9.5      N/A  49.3%  66.66    9.54  50.0 SSMI16 -13.7  -81.6  -13.7  -81.6  -14.2  -82.0 Analysis Plot     
     20181119 014331    0.7      N/A  68.5%  66.66     .75  55.0 SSMI17 -13.8  -81.6  -13.8  -81.6  -14.6  -81.5 Analysis Plot     
     20181119 103659    N/A      N/A   N/A     N/A     N/A  55.0 SSMI15 -14.7  -80.8  -14.7  -80.8  -15.5  -80.7 Analysis Plot     
     20181119 111241    N/A      N/A   N/A     N/A     N/A  55.0 SSMI16 -14.8  -80.7  -14.8  -80.7  -15.9  -80.8 Analysis Plot     
     20181119 122528 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18 -14.9  -80.6  -14.9  -80.6  -15.3  -80.0 Analysis Plot     
     20181119 135449   -1.5      N/A   2.7% 166.65    1.48  50.0 SSMI17 -15.3  -80.3  -15.3  -80.3  -15.4  -79.8 Analysis Plot     
     20181119 201134   -5.4      N/A   N/A  222.20    5.36  45.0  AMSR2 -15.5  -79.0  -15.5  -79.0  -15.4  -79.0 Analysis Plot     
     20181119 225710   -3.4      N/A   N/A  188.87    3.37  45.0 SSMI16 -15.5  -78.7  -15.5  -78.7  -15.3  -79.1 Analysis Plot     
     20181120 013019 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17 -15.6  -78.4  -15.6  -78.4  -15.4  -78.7 Analysis Plot     
     20181120 082450   -2.0      N/A   N/A  166.65    2.00  35.0  AMSR2 -15.4  -78.1  -15.4  -78.1  -15.4  -78.0 Analysis Plot     
     20181120 134105   -2.2      N/A   N/A  177.76    2.21  35.0 SSMI17 -15.4  -77.6  -15.4  -77.6  -15.5  -77.7 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.