Tropical Depression 09E


Passive Microwave (PMW) Intensity Information
Hurricane Intensity Estimation (HIE) Algorithm
Version 8.2.1
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20170721 125000    N/A      N/A   N/A     N/A     N/A  30.0 SSMI18   9.0   93.3    9.0   93.3    8.8   92.9 Analysis Plot     
     20170721 224300   -5.1      N/A  27.4% 199.98    5.08  30.0 SSMI16   9.0   94.7    9.0   94.7    9.6   95.2 Analysis Plot     
     20170722 101934 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI15   9.7   96.8    9.7   96.8    9.5   96.3 Analysis Plot     
     20170722 123900   -7.1      N/A  13.7% 122.21    7.09  30.0 SSMI18   9.9   97.8    9.9   97.8    9.8   98.3 Analysis Plot     
     20170723 012900 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  11.3   99.8   11.3   99.8   12.5  100.4 Analysis Plot     
     20170723 012900   -3.0      N/A   N/A   33.33    3.02  30.0 SSMI18  11.4  100.1   11.4  100.1   11.7  100.5 Analysis Plot     
     20170723 100144   -4.7      N/A  26.0%  44.44    4.73  35.0 SSMI15  12.6  101.7   12.6  101.7   12.4  101.6 Analysis Plot     
     20170723 115300  -10.7      N/A  42.5%  33.33   10.69  35.0 SSMI16  12.6  101.9   12.6  101.9   12.4  101.6 Analysis Plot     
     20170723 213409   -3.7      N/A  35.6% 122.21    3.70  45.0    GMI  13.2  103.0   13.2  103.0   13.5  102.8 Analysis Plot     
     20170724 011600   -7.4      N/A  41.1%  44.44    7.36  45.0 SSMI18  13.4  103.3   13.4  103.3   13.3  102.8 Analysis Plot     
     20170724 114800    6.6      N/A  57.5%  22.22    6.57  65.0 SSMI16  14.1  103.9   14.0  103.8   14.0  103.8 Analysis Plot     
     20170724 135300    2.9      N/A  57.5%  33.33    2.92  65.0 SSMI18  14.1  104.1   14.1  104.1   14.0  104.1 Analysis Plot     
     20170725 010400    4.1      N/A  79.5%  22.22    4.15  75.0 SSMI18  14.7  105.3   14.7  105.3   14.9  105.4 Analysis Plot     
     20170725 010400    6.5      N/A  83.6%  22.22    6.51  80.0 SSMI18  14.9  105.6   14.9  105.4   14.9  105.4 Analysis Plot     
     20170725 080901   29.3  >65 kts  86.3%  22.22   14.32  90.0    GMI  15.3  106.6   15.1  106.6   15.1  106.6 Analysis Plot     
     20170725 134000    1.9      N/A  82.2%  22.22    1.88  90.0 SSMI18  15.3  107.6   15.3  107.5   15.3  107.5 Analysis Plot     
     20170725 212445    1.5      N/A  30.1%  33.33    1.54  90.0    GMI  15.5  108.9   15.6  108.9   15.6  108.9 Analysis Plot     
     20170725 233400   32.9  >65 kts  89.0%  33.33   17.90  90.0 SSMI16  15.5  109.0   15.7  109.3   15.7  109.3 Analysis Plot     
     20170726 092613   52.5  >65 kts 100.0%  33.33   37.51  90.0  AMSR2  16.3  111.2   16.1  111.2   16.1  111.2 Analysis Plot     
     20170727 022200    0.9      N/A  12.3% 155.54     .88  85.0 SSMI18  17.1  114.2   17.0  114.4   17.0  114.4 Analysis Plot     
     20170727 145000    9.0      N/A  21.9%  88.88    9.04  70.0 SSMI17  17.6  116.1   17.7  115.8   17.7  115.8 Analysis Plot     
     20170727 211517    5.9      N/A   N/A   77.77    5.88  65.0    GMI  17.9  116.6   18.0  116.6   18.0  116.6 Analysis Plot     
     20170728 020200    3.8      N/A   9.6% 133.32    3.76  65.0 SSMI17  18.2  117.1   18.2  117.1   18.4  117.5 Analysis Plot     
     20170728 020900 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI18  18.2  117.1   18.2  117.1   18.2  117.6 Analysis Plot     
     20170728 020900    2.1      N/A  13.7%  66.66    2.12  65.0 SSMI18  18.3  117.3   18.3  117.3   18.2  117.2 Analysis Plot     
     20170728 091334    3.9      N/A   N/A   66.66    3.85  60.0  AMSR2  18.8  118.0   18.6  117.8   18.6  117.8 Analysis Plot     
     20170728 125800    3.7      N/A  20.5% 144.43    3.72  60.0 SSMI16  18.9  118.2   18.9  117.7   18.9  117.7 Analysis Plot     
     20170728 144300    N/A      N/A   N/A     N/A     N/A  55.0 SSMI18  19.2  118.4   19.2  118.4   19.1  118.3 Analysis Plot     
     20170728 223347    3.0      N/A  13.7%  33.33    2.97  55.0 SSMI15  19.9  119.5   19.9  119.5   19.8  119.3 Analysis Plot     
     20170729 015800    4.6      N/A   8.2%  22.22    4.60  55.0 SSMI18  20.1  119.9   20.1  119.9   20.0  119.8 Analysis Plot     
     20170729 074724    6.0      N/A  15.1%  55.55    6.03  55.0    GMI  20.7  120.8   20.7  120.8   20.7  120.5 Analysis Plot     
     20170729 112039    2.7      N/A  32.9%  77.77    2.73  55.0 SSMI15  21.0  121.2   21.0  121.2   21.1  120.9 Analysis Plot     
     20170729 142200    2.9      N/A  20.5% 122.21    2.93  55.0 SSMI17  21.4  121.5   21.4  121.5   21.3  121.6 Analysis Plot     
     20170729 143000    3.3      N/A  26.0% 111.10    3.25  55.0 SSMI18  21.4  121.5   21.4  121.5   21.4  121.5 Analysis Plot     
     20170729 210640 -930.0      N/A   N/A     N/A    0.00  50.0    GMI  22.3  122.5   22.3  122.5   22.2  122.6 Analysis Plot     
     20170730 110222    N/A      N/A   N/A     N/A     N/A  45.0 SSMI15  23.7  125.2   23.7  125.2   23.8  125.6 Analysis Plot     
     20170730 142200   -1.4      N/A   N/A  199.98    1.41  35.0 SSMI16  23.7  125.3   23.7  125.3   23.9  125.6 Analysis Plot     
     20180727 034100   -0.9      N/A  32.9%  22.22     .87  30.0 SSMI17  10.8  136.8   10.8  136.8   10.8  137.8 Analysis Plot     
     20180727 034100   -1.5      N/A  26.0%  33.33    1.48  30.0 SSMI17  10.8  137.1   10.8  137.1   10.8  137.8 Analysis Plot     
     20180727 161900   -2.1      N/A   6.8% 199.98    2.11  30.0 SSMI17  10.6  139.1   10.6  139.1   10.8  138.9 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.