Tropical Storm 31Y_01

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              
     20190801 153622 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  18.8 -153.5   18.8 -153.5   19.8 -153.6 Analysis Plot     
     20190802 025602   -4.8      N/A  15.1% 144.43    4.82  35.0  AMSR2  19.7 -152.7   19.7 -152.7   20.4 -152.4 Analysis Plot     
     20190802 192211 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI16  22.6 -150.2   22.6 -150.2   22.2 -149.0 Analysis Plot     
     20190802 210906    N/A      N/A   N/A     N/A     N/A  40.0 SSMI18  22.9 -149.9   22.9 -149.9   23.8 -149.6 Analysis Plot     
     20190803 034019   -1.9      N/A  23.3%  55.55    1.87  40.0  AMSR2  24.7 -147.7   25.0 -147.5   25.0 -147.5 Analysis Plot     
     20190803 073233   -6.2      N/A  39.7%  33.33    6.19  40.0 SSMI16  24.6 -147.2   24.6 -147.2   25.3 -147.5 Analysis Plot     
     20190803 085513   -0.7      N/A   N/A   44.44     .66  40.0 SSMI18  24.8 -147.0   24.8 -147.0   25.7 -146.9 Analysis Plot     
     20190803 101306   -3.7      N/A   N/A   33.33    3.70  40.0 SSMI17  25.0 -146.7   25.0 -146.7   25.8 -146.7 Analysis Plot     
     20190803 154818   -3.6      N/A  30.1% 188.87    3.61  45.0  AMSR2  26.9 -144.9   26.9 -144.9   26.8 -144.5 Analysis Plot     
     20190803 191848 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI16  26.5 -144.4   26.5 -144.4   26.7 -144.1 Analysis Plot     
     20190803 205645   -8.2      N/A  13.7% 111.10    8.16  50.0 SSMI18  26.8 -144.2   26.8 -144.2   26.9 -143.8 Analysis Plot     
     20190804 084222   -0.4      N/A   N/A   33.33     .38  50.0 SSMI18  28.6 -140.9   28.6 -140.9   28.7 -141.2 Analysis Plot     
     20190804 095834   -1.1      N/A   8.2%  66.66    1.07  50.0 SSMI17  28.8 -140.5   28.8 -140.5   29.0 -141.0 Analysis Plot     
     20190804 163010   -5.2      N/A  53.4%  55.55    5.24  50.0  AMSR2  29.9 -138.4   29.7 -138.3   29.7 -138.3 Analysis Plot     
     20190804 204714    8.1      N/A   N/A   55.55    8.06  55.0 SSMI16  29.9 -137.7   29.9 -137.7   30.1 -137.4 Analysis Plot     
     20190805 070615    4.0      N/A   8.2%  11.11    4.00  65.0 SSMI16  30.6 -134.3   30.6 -134.3   30.6 -134.4 Analysis Plot     
     20190805 103523 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI18  31.1 -133.7   31.1 -133.7   31.0 -133.8 Analysis Plot     
     20190805 171249   42.4  >65 kts 100.0%  11.11   27.41  70.0  AMSR2  31.5 -131.6   31.6 -132.0   31.6 -132.0 Analysis Plot     
     20190805 195621   36.8  >65 kts 100.0%  11.11   21.79  70.0 SSMI15  31.7 -131.3   32.0 -131.7   32.0 -131.7 Analysis Plot     
     20190805 203428   15.8      N/A  84.9%  22.22   15.80  70.0 SSMI16  31.7 -131.2   32.1 -131.8   32.1 -131.8 Analysis Plot     
     20190805 221208   37.1  >65 kts 100.0%  11.11   22.10  70.0 SSMI18  32.0 -130.9   32.4 -131.3   32.4 -131.3 Analysis Plot     
     20190806 041357   -1.2      N/A   9.5% 333.30    1.17  45.0  AMSR2  33.0 -129.8   33.0 -129.8   33.0 -130.1 Analysis Plot     
     20190806 065406   -1.0      N/A   N/A  299.97    1.04  45.0 SSMI16  33.6 -129.5   33.6 -129.5   33.2 -129.9 Analysis Plot     
     20190806 102247    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18  34.5 -129.4   34.5 -129.4   34.0 -129.5 Analysis Plot     
     20190806 175515 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  36.6 -128.6   36.6 -128.6   36.7 -128.8 Analysis Plot     
     20190806 231439 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  37.6 -129.0   37.6 -129.0   36.9 -129.0 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.