Tropical Depression 26W

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              
     20191111 173438 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI15  14.4 -163.6   14.4 -163.6   15.4 -164.0 Analysis Plot     
     20191112 055155   -5.0      N/A  11.0% 255.53    4.97  30.0 SSMI16  15.5 -161.1   15.5 -161.1   15.7 -160.9 Analysis Plot     
     20191112 075730 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  15.7 -160.6   15.7 -160.6   15.7 -161.0 Analysis Plot     
     20191112 090441   -2.2      N/A  35.6%  77.77    2.25  30.0    GMI  15.9 -160.0   15.9 -160.0   16.1 -159.1 Analysis Plot     
     20191112 172835 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI15  16.4 -158.2   16.4 -158.2   17.1 -158.3 Analysis Plot     
     20191112 190708  -20.6      N/A 100.0%  22.22    5.57  35.0 SSMI16  16.5 -157.9   16.5 -157.9   16.8 -156.6 Analysis Plot     
     20191112 200223    N/A      N/A   N/A     N/A     N/A  35.0 SSMI18  16.6 -157.6   16.6 -157.6   17.0 -156.2 Analysis Plot     
     20191113 030113   -6.4      N/A  21.5% 311.08    6.37  40.0  AMSR2  17.4 -155.4   17.4 -155.4   17.4 -155.6 Analysis Plot     
     20191113 065639 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI16  17.5 -154.6   17.5 -154.6   18.0 -155.0 Analysis Plot     
     20191113 074507 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  17.5 -154.5   17.5 -154.5   16.9 -154.3 Analysis Plot     
     20191113 151402   -4.0      N/A  19.2% 199.98    4.01  45.0  AMSR2  17.0 -151.9   17.0 -151.9   17.0 -152.0 Analysis Plot     
     20191113 190347   -3.5      N/A  24.7% 266.64    3.49  50.0 SSMI16  16.9 -151.5   16.9 -151.5   17.3 -151.5 Analysis Plot     
     20191113 195019 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI18  17.0 -151.3   17.0 -151.3   17.4 -151.1 Analysis Plot     
     20191114 034437    N/A      N/A   N/A     N/A     N/A  50.0  AMSR2  17.2 -148.9   17.2 -148.9   17.2 -148.9 Analysis Plot     
     20191114 062300    N/A      N/A   N/A     N/A     N/A  50.0 SSMI15  17.3 -148.6   17.3 -148.6   17.0 -148.3 Analysis Plot     
     20191114 085211 -930.0      N/A   N/A     N/A    0.00  55.0    GMI  17.3 -147.4   17.3 -147.4   17.2 -147.4 Analysis Plot     
     20191114 093916    7.0      N/A  11.0%  22.22    6.98  55.0 SSMI18  17.3 -147.5   17.3 -147.5   17.0 -147.7 Analysis Plot     
     20191114 211626   38.9  >65 kts 100.0%  33.33   23.87  60.0 SSMI18  18.5 -144.6   18.5 -144.4   18.5 -144.4 Analysis Plot     
     20191115 084337   47.4  >65 kts 100.0%  99.99   32.42  95.0 SSMI16  20.4 -142.7   20.1 -142.5   20.1 -142.5 Analysis Plot     
     20191115 092640   16.0      N/A  82.2%  11.11   16.00  95.0 SSMI18  20.5 -142.6   20.3 -142.6   20.3 -142.6 Analysis Plot     
     20191115 201029   60.0  >85 kts 100.0%  66.66   44.97 110.0 SSMI16  22.8 -142.7   22.7 -142.5   22.7 -142.5 Analysis Plot     
     20191115 210357   51.9  >65 kts 100.0%  66.66   36.90 110.0 SSMI18  22.9 -142.8   23.0 -142.7   23.0 -142.7 Analysis Plot     
     20191116 033410   63.2  >85 kts 100.0%  55.55   48.22 110.0  AMSR2  24.2 -143.9   24.5 -144.1   24.5 -144.1 Analysis Plot     
     20191116 085026   52.4  >65 kts 100.0%  44.44   37.43 110.0 SSMI18  25.0 -145.2   25.0 -145.3   25.0 -145.3 Analysis Plot     
     20191116 210519    3.3      N/A  11.0%  99.99    3.35 100.0 SSMI18  26.7 -150.0   26.6 -149.7   26.6 -149.7 Analysis Plot     
     20191116 220139 -930.0      N/A   N/A     N/A    0.00 100.0    GMI  26.7 -150.7   27.2 -150.7   27.2 -150.7 Analysis Plot     
     20191117 024001   12.8      N/A   N/A  144.43   12.81  90.0  AMSR2  26.5 -152.9   26.9 -153.7   26.9 -153.7 Analysis Plot     
     20191117 083719 -930.0      N/A   N/A     N/A    0.00  90.0 SSMI18  26.1 -154.5   26.1 -154.5   26.8 -155.6 Analysis Plot     
     20191117 173252   -1.4      N/A   N/A   66.66    1.43  40.0 SSMI15  25.5 -157.4   25.5 -157.4   26.0 -157.7 Analysis Plot     
     20191117 083719 -930.0      N/A   N/A     N/A    0.00  90.0 SSMI18  26.1 -154.5   26.1 -154.5   26.8 -155.6 Analysis Plot     
     20191118 053541 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI15  24.2 -158.5   24.2 -158.5   24.4 -158.6 Analysis Plot     
     20191118 065709   -5.0      N/A   N/A   22.22    5.00  30.0    GMI  22.9 -158.0   22.9 -158.0   22.1 -158.2 Analysis Plot     
     20191118 082316   -1.7      N/A   N/A   22.22    1.71  30.0 SSMI18  22.8 -157.9   22.8 -157.9   22.2 -157.5 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.