Tropical Depression 19W

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              
     20180811 031953   -1.6      N/A   1.4%  66.66    1.64  25.0  AMSR2  18.7 -144.1   18.7 -144.1   18.5 -144.0 Analysis Plot     
     20180811 060119   -2.6      N/A  11.0% 111.10    2.55  25.0 SSMI16  19.0 -143.9   19.0 -143.9   19.1 -143.6 Analysis Plot     
     20180811 075814   -3.1      N/A  41.1%  88.88    3.12  30.0 SSMI18  19.6 -143.6   19.6 -143.6   19.1 -144.1 Analysis Plot     
     20180811 105220   -0.7      N/A  41.1%  99.99     .73  30.0 SSMI17  20.0 -143.3   20.0 -143.3   19.3 -144.1 Analysis Plot     
     20180811 192107    3.1      N/A   5.5% 155.54    3.15  55.0 SSMI16  21.0 -142.8   21.0 -142.8   20.4 -142.8 Analysis Plot     
     20180811 211738    2.0      N/A   9.6%  66.66    1.99  55.0 SSMI18  21.5 -142.7   21.5 -142.7   20.9 -142.9 Analysis Plot     
     20180811 222922    0.8      N/A  17.8% 111.10     .78  55.0 SSMI17  21.6 -142.6   21.6 -142.6   20.8 -142.8 Analysis Plot     
     20180811 233010    N/A      N/A   N/A     N/A     N/A  55.0    GMI  21.9 -142.4   21.9 -142.4   21.5 -142.8 Analysis Plot     
     20180812 040313   48.7  >65 kts 100.0%  33.33   33.70  60.0  AMSR2  22.2 -142.1   22.2 -142.1   22.5 -142.3 Analysis Plot     
     20180812 101528   18.6      N/A  28.8%  44.44   18.58  60.0 SSMI17  23.4 -141.4   23.4 -141.4   23.2 -141.9 Analysis Plot     
     20180812 125020   14.4      N/A  60.3%  33.33   14.45  60.0    GMI  23.9 -140.9   23.8 -141.4   23.8 -141.4 Analysis Plot     
     20180812 161204   11.6      N/A  76.7%  33.33   11.61  65.0  AMSR2  24.4 -140.9   24.3 -140.9   24.3 -140.9 Analysis Plot     
     20180812 181127    N/A      N/A   N/A     N/A     N/A  65.0 SSMI15  24.6 -140.6   24.6 -140.6   24.7 -140.5 Analysis Plot     
     20180812 221614    4.2      N/A  23.3%  55.55    4.22  65.0 SSMI17  25.1 -140.1   25.1 -140.1   25.2 -139.9 Analysis Plot     
     20180813 053134    7.1      N/A  26.0%  55.55    7.10  65.0 SSMI15  26.6 -138.5   26.6 -138.5   26.4 -138.9 Analysis Plot     
     20180813 133347 -930.0      N/A   N/A     N/A    0.00  65.0    GMI  27.7 -136.9   27.7 -136.9   27.9 -137.4 Analysis Plot     
     20180813 175412    N/A      N/A   N/A     N/A     N/A  55.0 SSMI15  28.3 -136.0   28.3 -136.0   28.3 -137.4 Analysis Plot     
     20180813 204342   -2.0      N/A  46.6% 144.43    1.96  50.0 SSMI16  28.3 -136.4   28.3 -136.4   28.2 -137.1 Analysis Plot     
     20180813 223312   -4.4      N/A  27.4% 122.21    4.37  50.0 SSMI18  28.6 -135.9   28.6 -135.9   28.8 -136.6 Analysis Plot     
     20180813 231827  -10.1      N/A  19.2% 122.21   10.08  50.0    GMI  28.9 -135.6   28.9 -135.6   29.0 -136.3 Analysis Plot     
     20180814 070243    5.6      N/A  28.8%  22.22    5.56  60.0 SSMI16  30.4 -134.4   30.4 -134.4   30.4 -134.5 Analysis Plot     
     20180814 104332    N/A      N/A   N/A     N/A     N/A  55.0 SSMI18  31.0 -133.9   31.0 -133.9   30.7 -133.9 Analysis Plot     
     20180814 202105 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  32.7 -131.6   32.7 -131.6   33.3 -131.4 Analysis Plot     
     20180814 222039 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  32.7 -130.6   32.7 -130.6   33.5 -130.6 Analysis Plot     
     20180814 233102   -3.9      N/A  56.2%  22.22    3.92  45.0 SSMI17  32.9 -130.4   32.9 -130.4   32.6 -130.3 Analysis Plot     
     20180815 043724   -2.9      N/A   N/A   11.11    2.93  35.0  AMSR2  34.4 -129.9   34.4 -129.9   34.7 -129.2 Analysis Plot     
     20180815 132514   -6.6      N/A  28.8% 144.43    6.65  30.0    GMI  36.0 -130.0   36.0 -130.0   35.9 -130.8 Analysis Plot     
     20180815 200756 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  36.6 -130.5   36.6 -130.5   37.2 -129.5 Analysis Plot     
     20180815 215803 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  36.7 -130.9   36.7 -130.9   37.1 -130.1 Analysis Plot     
     20180815 231648   -2.6      N/A  26.0% 155.54    2.56  30.0 SSMI17  36.8 -131.3   36.8 -131.3   36.6 -131.2 Analysis Plot     
     20180816 034358   -2.4      N/A   N/A   11.11    2.37  30.0  AMSR2  37.1 -132.5   37.1 -132.5   36.8 -132.7 Analysis Plot     
     20180816 063727   -1.4      N/A   N/A   22.22    1.36  30.0 SSMI16  37.3 -133.2   37.3 -133.2   37.9 -133.0 Analysis Plot     
     20180816 102827   -3.6      N/A   N/A   88.88    3.64  30.0 SSMI18  37.5 -134.4   37.5 -134.4   37.9 -133.9 Analysis Plot     
     20180816 113636   -0.4      N/A   N/A   22.22     .44  30.0 SSMI17  37.6 -134.9   37.6 -134.9   38.1 -134.6 Analysis Plot     
     20180816 123434   -3.1      N/A   N/A   11.11    3.12  30.0    GMI  37.8 -135.9   37.8 -135.9   37.6 -135.6 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.