Typhoon 25P

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              
     20200403 025605 -930.0      N/A   N/A     N/A    0.00  40.0    GMI -10.8 -162.1  -10.8 -162.1  -11.7 -161.8 Analysis Plot     
     20200403 030559  -37.6      N/A 100.0%  33.33   22.58  40.0  AMSR2 -10.8 -162.1  -11.4 -161.6  -11.4 -161.6 Analysis Plot     
     20200403 063053    N/A      N/A   N/A     N/A     N/A  40.0 SSMI18 -11.2 -162.6  -11.2 -162.6  -11.9 -162.1 Analysis Plot     
     20200403 100956  -18.1      N/A 100.0%  22.22    3.09  40.0 SSMI15 -11.2 -162.6  -11.2 -162.6  -11.6 -161.9 Analysis Plot     
     20200403 183352   26.2  >65 kts  95.9%  22.22   11.23  55.0 SSMI16 -13.3 -163.4  -13.4 -163.8  -13.4 -163.8 Analysis Plot     
     20200403 184812   17.5      N/A  87.7%  22.22    2.46  55.0 SSMI18 -13.3 -163.4  -13.3 -163.4  -13.4 -163.8 Analysis Plot     
     20200404 062243   19.1      N/A 100.0%  11.11    4.05  90.0 SSMI18 -14.2 -164.2  -14.4 -164.9  -14.4 -164.9 Analysis Plot     
     20200404 184324   40.8  >65 kts 100.0%  22.22   25.83 115.0 SSMI18 -14.8 -165.3  -15.0 -165.7  -15.0 -165.7 Analysis Plot     
     20200404 184500   28.5  >65 kts 100.0%  33.33   13.51 115.0 SSMI16 -14.8 -165.3  -15.0 -165.7  -15.0 -165.7 Analysis Plot     
     20200405 063604   17.3      N/A  43.8%  33.33   17.32 105.0 SSMI18 -15.6 -166.1  -15.8 -165.6  -15.8 -165.6 Analysis Plot     
     20200405 183153   77.1  >85 kts 100.0%  33.33   62.15 120.0 SSMI16 -15.6 -165.9  -15.3 -166.0  -15.3 -166.0 Analysis Plot     
     20200406 015317   94.3  >85 kts 100.0%  22.22   79.31 125.0    GMI -15.4 -166.8  -15.6 -167.1  -15.6 -167.1 Analysis Plot     
     20200406 063136   59.7  >65 kts 100.0%  22.22   44.67 115.0 SSMI18 -15.7 -167.4  -15.8 -167.8  -15.8 -167.8 Analysis Plot     
     20200406 142705   63.7  >85 kts 100.0%  11.11   48.71 145.0  AMSR2 -16.2 -169.4  -16.1 -169.2  -16.1 -169.2 Analysis Plot     
     20200406 181842   40.5  >65 kts 100.0%  22.22   25.52 145.0 SSMI16 -16.3 -169.8  -16.3 -169.5  -16.3 -169.5 Analysis Plot     
     20200407 010140   10.6      N/A  69.9%  11.11   10.65 135.0    GMI -17.0 -171.3  -16.6 -171.3  -16.6 -171.3 Analysis Plot     
     20200407 023946   18.4      N/A  90.4%  11.11    3.39 115.0  AMSR2 -16.9 -171.8  -16.8 -171.8  -16.8 -171.8 Analysis Plot     
     20200407 061849   16.3      N/A  67.1% 111.10   16.30 115.0 SSMI18 -17.0 -172.6  -17.0 -172.6  -17.0 -172.6 Analysis Plot     
     20200407 174654   67.3  >85 kts 100.0%  77.77   52.29 110.0 SSMI16 -17.9 -175.4  -18.0 -175.6  -18.0 -175.6 Analysis Plot     
     20200407 182305   55.7  >65 kts 100.0%  66.66   40.68 110.0 SSMI18 -17.9 -175.5  -18.1 -175.5  -18.1 -175.5 Analysis Plot     
     20200408 053627   60.8  >85 kts 100.0%  66.66   45.75 120.0 SSMI18 -19.6 -179.3  -19.8 -179.5  -19.8 -179.5 Analysis Plot     
     20200408 132822   20.2  >65 kts  67.1%  55.55   20.22 120.0    GMI -20.9  177.7  -20.9  177.4  -20.9  177.4 Analysis Plot     
     20200408 154339 -930.0      N/A   N/A     N/A    0.00 120.0 SSMI15 -21.0  177.1  -21.0  177.1  -20.9  176.3 Analysis Plot     
     20200408 174525    4.3      N/A  43.8%  44.44    4.25 120.0 SSMI18 -21.4  176.2  -21.6  176.2  -21.6  176.2 Analysis Plot     
     20200408 231715   20.7  >65 kts  31.5% 122.21   20.71 110.0    GMI -23.0  173.3  -23.4  173.6  -23.4  173.6 Analysis Plot     
     20200409 004802 -930.0      N/A   N/A     N/A    0.00 110.0  AMSR2 -23.2  173.2  -23.2  172.9  -23.2  172.9 Analysis Plot     
     20200409 043008   12.2      N/A  24.7% 155.54   12.24 110.0 SSMI15 -23.7  172.3  -24.0  171.8  -24.0  171.8 Analysis Plot     
     20200409 152814    N/A      N/A   N/A     N/A     N/A  80.0 SSMI15 -26.5  166.4  -26.5  166.4  -27.2  165.9 Analysis Plot     
     20200409 154357    N/A      N/A   N/A     N/A     N/A  80.0 SSMI16 -26.7  166.2  -26.7  166.2  -27.5  165.6 Analysis Plot     
     20200409 222454    9.0      N/A  17.8% 199.98    9.04  80.0    GMI -28.7  162.1  -29.0  162.1  -29.0  162.1 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.