Tropical Depression 09W


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              
     20180628 132934   -3.6      N/A   4.1%  77.77    3.63  25.0    GMI  20.8 -131.4   20.8 -131.4   20.8 -131.0 Analysis Plot     
     20180628 164356  -16.0      N/A 100.0%  44.44    1.02  25.0  AMSR2  20.7 -131.0   20.7 -131.0   19.7 -130.3 Analysis Plot     
     20180628 185227 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI15  20.8 -130.9   20.8 -130.9   20.9 -131.0 Analysis Plot     
     20180628 203741  -16.0      N/A  86.3%  33.33     .98  30.0 SSMI16  19.8 -130.8   19.8 -130.8   19.5 -130.1 Analysis Plot     
     20180628 220051    N/A      N/A   N/A     N/A     N/A  30.0 SSMI18  19.8 -130.7   19.8 -130.7   19.7 -129.8 Analysis Plot     
     20180629 024759   -7.6      N/A  68.5%  33.33    7.60  35.0    GMI  19.7 -130.3   19.7 -130.3   19.2 -130.3 Analysis Plot     
     20180629 071058   -1.2      N/A   5.5% 177.76    1.19  35.0 SSMI16  19.8 -130.1   19.8 -130.1   20.1 -129.8 Analysis Plot     
     20180629 103140 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI17  19.9 -129.9   19.9 -129.9   20.1 -130.3 Analysis Plot     
     20180629 183207   -3.9      N/A  17.8%  33.33    3.90  45.0 SSMI15  20.4 -129.4   20.4 -129.4   20.1 -129.6 Analysis Plot     
     20180629 202728   -7.0      N/A  13.7%  55.55    6.98  45.0 SSMI16  20.4 -129.6   20.4 -129.6   20.0 -129.8 Analysis Plot     
     20180629 225643 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17  20.6 -129.5   20.6 -129.5   20.2 -128.9 Analysis Plot     
     20180630 042153 -930.0      N/A   N/A     N/A    0.00  45.0  AMSR2  21.4 -129.1   21.4 -129.1   21.1 -129.0 Analysis Plot     
     20180630 064505 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  21.7 -129.0   21.7 -129.0   21.5 -128.9 Analysis Plot     
     20180630 095714   -2.6      N/A   8.2% 166.65    2.61  45.0 SSMI17  21.6 -128.9   21.6 -128.9   21.9 -128.6 Analysis Plot     
     20180630 131859   -3.7      N/A   N/A   44.44    3.65  45.0    GMI  22.2 -128.5   22.2 -128.5   22.0 -128.4 Analysis Plot     
     20180630 231926 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  23.6 -127.6   23.6 -127.6   23.5 -127.8 Analysis Plot     
     20180630 232400   -3.4      N/A  13.7% 222.20    3.43  45.0 SSMI17  23.7 -127.6   23.7 -127.6   23.3 -127.4 Analysis Plot     
     20180701 023915 -930.0      N/A   N/A     N/A    0.00  50.0    GMI  24.1 -127.1   24.1 -127.1   23.4 -127.4 Analysis Plot     
     20180701 050528   -4.2      N/A  30.1% 155.54    4.24  50.0  AMSR2  24.5 -127.0   24.2 -127.5   24.2 -127.5 Analysis Plot     
     20180701 112402   -1.7      N/A   N/A   22.22    1.71  50.0 SSMI18  25.4 -127.1   25.4 -127.1   24.8 -127.0 Analysis Plot     
     20180701 113948   -1.2      N/A   N/A   22.22    1.15  50.0 SSMI17  25.4 -127.1   25.4 -127.1   24.9 -127.1 Analysis Plot     
     20180701 122553   -8.1      N/A  42.5%  77.77    8.12  50.0    GMI  25.7 -127.0   25.2 -127.1   25.2 -127.1 Analysis Plot     
     20180701 171251   20.3  >65 kts  68.5%  55.55   20.32  60.0  AMSR2  26.9 -126.9   26.1 -126.9   26.1 -126.9 Analysis Plot     
     20180701 230627   15.3      N/A   N/A   44.44   15.33  65.0 SSMI18  27.0 -126.8   26.9 -127.0   26.9 -127.0 Analysis Plot     
     20180701 231046   17.6      N/A  30.1%  44.44   17.64  65.0 SSMI17  27.1 -126.8   27.0 -126.9   27.0 -126.9 Analysis Plot     
     20180702 041238 -930.0      N/A   N/A     N/A    0.00  75.0  AMSR2  28.2 -127.1   28.0 -127.4   28.0 -127.4 Analysis Plot     
     20180702 093351    6.4      N/A  20.5%  66.66    6.36  75.0 SSMI18  28.7 -127.5   28.7 -127.5   28.6 -127.6 Analysis Plot     
     20180702 095154    4.0      N/A  11.0%  66.66    4.05  75.0 SSMI17  28.8 -127.5   28.8 -127.5   28.8 -127.7 Analysis Plot     
     20180702 192405   10.8      N/A  42.5%  44.44   10.75  75.0 SSMI15  30.9 -128.2   31.1 -128.0   31.1 -128.0 Analysis Plot     
     20180702 212658   11.7      N/A  35.6%  55.55   11.70  75.0 SSMI16  31.2 -128.4   31.3 -128.0   31.3 -128.0 Analysis Plot     
     20180702 225658    6.2      N/A  38.4%  55.55    6.22  75.0 SSMI17  31.5 -128.5   31.5 -128.3   31.5 -128.3 Analysis Plot     
     20180703 023117 -930.0      N/A   N/A     N/A    0.00  75.0    GMI  32.5 -128.9   32.5 -128.9   32.7 -128.4 Analysis Plot     
     20180703 045534    N/A      N/A   N/A     N/A     N/A  70.0  AMSR2  33.1 -128.8   33.1 -128.8   33.1 -128.8 Analysis Plot     
     20180703 075641    3.3      N/A   8.2%  99.99    3.29  70.0 SSMI15  33.4 -128.9   33.2 -128.8   33.2 -128.8 Analysis Plot     
     20180703 093347    4.6      N/A  27.4%  44.44    4.58  65.0 SSMI18  34.0 -129.3   34.0 -129.3   33.8 -129.1 Analysis Plot     
     20180703 165809    1.3      N/A  12.3% 133.32    1.25  60.0  AMSR2  35.9 -130.9   35.9 -130.9   35.5 -130.3 Analysis Plot     
     20180703 190323    1.4      N/A   N/A  177.76    1.38  55.0 SSMI15  36.0 -131.6   36.0 -131.6   35.5 -130.8 Analysis Plot     
     20180703 211345 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  36.3 -131.9   36.3 -131.9   36.3 -130.7 Analysis Plot     
     20180703 224407 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI17  36.7 -132.3   36.7 -132.3   36.3 -131.4 Analysis Plot     
     20180704 014139 -930.0      N/A   N/A     N/A    0.00  50.0    GMI  37.8 -133.4   37.8 -133.4   37.8 -134.3 Analysis Plot     
     20180704 091233   -1.1      N/A   N/A  188.87    1.08  45.0 SSMI17  39.5 -135.4   39.5 -135.4   39.7 -136.1 Analysis Plot     
     20180704 092151   -2.1      N/A   N/A  177.76    2.08  45.0 SSMI18  39.5 -135.4   39.5 -135.4   39.6 -135.9 Analysis Plot     
     20180704 190832 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI15  41.4 -139.2   41.4 -139.2   41.0 -140.1 Analysis Plot     
     20180704 210034 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  41.6 -139.7   41.6 -139.7   40.8 -140.1 Analysis Plot     
     20180704 212231    N/A      N/A   N/A     N/A     N/A  35.0 SSMI17  41.6 -139.8   41.6 -139.8   41.6 -139.7 Analysis Plot     
     20180704 222641 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  41.8 -140.3   41.8 -140.3   40.9 -140.4 Analysis Plot     
     20180704 223027 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  41.8 -140.4   41.8 -140.4   40.8 -140.6 Analysis Plot     
     20180705 005046 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  42.2 -141.7   42.2 -141.7   41.2 -141.6 Analysis Plot     
     20180705 054123 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  42.8 -143.7   42.8 -143.7   41.9 -143.2 Analysis Plot     
     20180705 071429 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  43.0 -144.5   43.0 -144.5   42.1 -145.0 Analysis Plot     
     20180705 085421 -930.0      N/A   N/A     N/A    0.00  35.0    GMI  43.4 -146.4   43.4 -146.4   42.9 -148.1 Analysis Plot     
     20180705 085914 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  43.3 -145.9   43.3 -145.9   42.3 -146.7 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.