Typhoon 31Y_03

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              
     20191019 030457   -4.9      N/A  46.6%  55.55    4.94  30.0  AMSR2  10.1 -156.0   10.1 -156.0   10.4 -155.7 Analysis Plot     
     20191019 055853   -1.8      N/A  38.4%  66.66    1.82  30.0 SSMI16  10.3 -155.4   10.3 -155.4   10.4 -155.0 Analysis Plot     
     20191019 063943  -12.7      N/A  46.6%  44.44   12.71  30.0 SSMI18  10.3 -155.2   10.3 -155.2   10.4 -154.9 Analysis Plot     
     20191019 152052   -2.7      N/A  16.4%  99.99    2.71  35.0  AMSR2  10.9 -152.9   11.0 -152.7   11.0 -152.7 Analysis Plot     
     20191019 192548  -11.7      N/A  37.0% 222.20   11.66  40.0 SSMI16  10.9 -152.3   10.9 -152.3   11.4 -152.1 Analysis Plot     
     20191019 200056  -10.6      N/A   6.8% 133.32   10.57  40.0 SSMI18  10.9 -152.1   10.9 -152.1   11.5 -152.1 Analysis Plot     
     20191020 034920 -930.0      N/A   N/A     N/A    0.00  50.0  AMSR2  11.3 -150.7   11.2 -150.2   11.2 -150.2 Analysis Plot     
     20191020 072707   17.7      N/A  21.9%  44.44   17.72  55.0 SSMI16  11.6 -150.3   11.6 -150.3   12.2 -150.7 Analysis Plot     
     20191020 160343   21.9  >65 kts  75.3%  33.33   21.88  60.0  AMSR2  13.1 -149.3   13.1 -149.4   13.1 -149.4 Analysis Plot     
     20191020 191319   10.9      N/A  72.6%  33.33   10.89  60.0 SSMI16  13.2 -149.1   13.4 -149.2   13.4 -149.2 Analysis Plot     
     20191021 075610   71.7  >85 kts 100.0%  22.22   56.72  80.0 SSMI18  14.6 -147.2   14.8 -147.3   14.8 -147.3 Analysis Plot     
     20191022 033808   91.8  >85 kts 100.0%  33.33   76.84  85.0  AMSR2  17.7 -144.5   17.7 -144.6   17.7 -144.6 Analysis Plot     
     20191022 071453   57.1  >65 kts 100.0%  22.22   42.13  95.0 SSMI16  18.2 -144.2   18.3 -144.1   18.3 -144.1 Analysis Plot     
     20191022 074342 -930.0      N/A   N/A     N/A    0.00  95.0 SSMI18  18.3 -144.2   18.3 -144.2   19.0 -143.1 Analysis Plot     
     20191022 155010   52.4  >65 kts 100.0%  22.22   37.36 100.0  AMSR2  19.8 -142.7   19.9 -143.2   19.9 -143.2 Analysis Plot     
     20191022 210228   12.8      N/A  17.8%  44.44   12.78 100.0 SSMI18  20.6 -142.9   20.9 -142.7   20.9 -142.7 Analysis Plot     
     20191023 053223   75.1  >85 kts 100.0%  33.33   60.08 100.0    GMI  22.5 -142.1   22.6 -141.9   22.6 -141.9 Analysis Plot     
     20191023 073102   51.9  >65 kts 100.0%  33.33   36.89  95.0 SSMI18  22.7 -141.9   23.0 -142.0   23.0 -142.0 Analysis Plot     
     20191023 084646   64.3  >85 kts 100.0%  33.33   49.32  95.0 SSMI16  22.9 -141.7   22.8 -142.0   22.8 -142.0 Analysis Plot     
     20191023 205006   14.1      N/A  68.5%  66.66   14.05  90.0 SSMI18  26.0 -141.4   25.9 -141.8   25.9 -141.8 Analysis Plot     
     20191024 032858   18.3      N/A  34.2%  55.55   18.31  90.0  AMSR2  27.6 -142.1   27.8 -142.3   27.8 -142.3 Analysis Plot     
     20191024 063441   16.9      N/A  61.6%  55.55   16.93  85.0 SSMI16  28.3 -142.4   28.4 -142.6   28.4 -142.6 Analysis Plot     
     20191024 071822   15.9      N/A  23.3%  66.66   15.88  85.0 SSMI18  28.3 -142.4   28.5 -142.7   28.5 -142.7 Analysis Plot     
     20191024 195252    6.5      N/A   N/A  111.10    6.51  80.0 SSMI16  31.0 -145.2   31.0 -145.2   30.9 -145.0 Analysis Plot     
     20191024 203749    9.2      N/A  42.5% 122.21    9.24  80.0 SSMI18  31.2 -145.3   31.2 -145.3   31.2 -145.4 Analysis Plot     
     20191025 071346   22.4  >65 kts  45.2% 122.21   22.43  65.0 SSMI18  34.1 -148.2   34.0 -148.6   34.0 -148.6 Analysis Plot     
     20191025 080322   45.6  >65 kts 100.0% 144.43   30.59  65.0 SSMI16  34.2 -148.4   33.8 -148.2   33.8 -148.2 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.