Tropical Storm 25S

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              
     20190423 195210  -21.2      N/A 100.0%  11.11    6.24  40.0  AMSR2  -9.6  -82.9   -9.3  -83.3   -9.3  -83.3 Analysis Plot     
     20190423 224648    N/A      N/A   N/A     N/A     N/A  40.0 SSMI16  -9.8  -82.9   -9.8  -82.9   -9.2  -83.5 Analysis Plot     
     20190424 080809   -3.9      N/A  15.1% 111.10    3.87  40.0  AMSR2 -10.8  -84.1  -10.8  -84.1  -10.5  -84.1 Analysis Plot     
     20190424 110851   -5.7      N/A  20.5%  77.77    5.65  40.0 SSMI16 -11.0  -84.2  -11.0  -84.2  -10.7  -84.2 Analysis Plot     
     20190424 120345   -2.2      N/A  26.0%  22.22    2.20  40.0 SSMI18 -11.0  -84.2  -11.0  -84.2  -10.6  -84.3 Analysis Plot     
     20190424 223634    N/A      N/A   N/A     N/A     N/A  40.0 SSMI16 -10.3  -84.8  -10.3  -84.8  -10.4  -84.8 Analysis Plot     
     20190425 110733 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI15 -10.8  -85.5  -10.8  -85.5  -10.7  -85.0 Analysis Plot     
     20190425 221459    N/A      N/A   N/A     N/A     N/A  55.0 SSMI15 -11.2  -86.5  -11.2  -86.5  -10.6  -85.8 Analysis Plot     
     20190425 223250 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16 -11.3  -86.5  -11.3  -86.5  -11.0  -86.4 Analysis Plot     
     20190426 015739    0.7      N/A  82.2%  55.55     .70  55.0 SSMI17 -11.5  -86.8  -10.8  -86.6  -10.8  -86.6 Analysis Plot     
     20190426 075537    N/A      N/A   N/A     N/A     N/A  65.0  AMSR2 -11.4  -87.6  -11.7  -87.4  -11.7  -87.4 Analysis Plot     
     20190426 103054   18.1      N/A 100.0%  33.33    3.10  65.0 SSMI16 -11.6  -87.8  -11.8  -87.1  -11.8  -87.1 Analysis Plot     
     20190426 111052   15.9      N/A 100.0%  55.55     .94  65.0 SSMI15 -11.5  -87.7  -11.9  -87.0  -11.9  -87.0 Analysis Plot     
     20190426 220105   12.8      N/A  27.4% 133.32   12.85  65.0 SSMI15 -14.1  -89.2  -13.4  -88.5  -13.4  -88.5 Analysis Plot     
     20190426 221812 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI16 -14.1  -89.2  -14.1  -89.2  -13.9  -88.9 Analysis Plot     
     20190427 014302    2.7      N/A  38.4%  77.77    2.71  65.0 SSMI17 -14.1  -89.3  -13.8  -88.7  -13.8  -88.7 Analysis Plot     
     20190427 105310   11.9      N/A  42.5%  55.55   11.93  65.0 SSMI15 -14.8  -88.8  -14.3  -88.6  -14.3  -88.6 Analysis Plot     
     20190427 211851 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI15 -15.3  -89.1  -15.4  -89.0  -15.4  -89.0 Analysis Plot     
     20190428 003327   53.9  >65 kts 100.0%  55.55   38.86  60.0 SSMI18 -15.7  -89.2  -15.8  -89.3  -15.8  -89.3 Analysis Plot     
     20190428 012957   54.4  >65 kts 100.0%  88.88   39.44  60.0 SSMI17 -15.9  -89.0  -15.9  -89.3  -15.9  -89.3 Analysis Plot     
     20190428 101511   13.3      N/A  52.1%  55.55   13.26  75.0 SSMI15 -17.2  -89.7  -17.7  -89.9  -17.7  -89.9 Analysis Plot     
     20190428 112137 -930.0      N/A   N/A     N/A    0.00  75.0    GMI -17.5  -89.7  -18.2  -89.9  -18.2  -89.9 Analysis Plot     
     20190428 211153    N/A      N/A   N/A     N/A     N/A  75.0 SSMI15 -19.8  -90.4  -19.8  -90.4  -20.5  -89.8 Analysis Plot     
     20190429 002110    N/A      N/A   N/A     N/A     N/A  75.0 SSMI18 -20.3  -90.3  -20.3  -90.3  -21.1  -90.5 Analysis Plot     
     20190429 003943    5.9      N/A   N/A  144.43    5.92  75.0    GMI -20.5  -90.3  -20.5  -90.3  -19.9  -89.4 Analysis Plot     
     20190429 011659    2.4      N/A   N/A   77.77    2.42  75.0 SSMI17 -20.4  -90.3  -20.4  -90.3  -20.2  -89.7 Analysis Plot     
     20190429 123221   -4.4      N/A   N/A  144.43    4.41  50.0 SSMI18 -21.8  -89.1  -21.8  -89.1  -21.6  -88.7 Analysis Plot     
     20190429 132723   -5.6      N/A   N/A  222.20    5.64  35.0 SSMI17 -21.8  -88.8  -21.8  -88.8  -21.6  -88.8 Analysis Plot     
     20190429 191841   -1.9      N/A   N/A   44.44    1.92  35.0  AMSR2 -22.8  -88.8  -22.8  -88.8  -22.3  -89.1 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.