Tropical Storm 25W


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              
     20180827 074648 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI16  13.5 -158.9   13.5 -158.9   13.7 -158.0 Analysis Plot     
     20180827 153155   -5.6      N/A   4.1%  22.22    5.59  30.0  AMSR2  14.6 -158.3   14.6 -158.3   14.5 -158.2 Analysis Plot     
     20180828 022422 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2  15.7 -156.7   15.7 -156.7   14.8 -157.2 Analysis Plot     
     20180828 044946   -0.6      N/A  45.2%  22.22     .61  35.0 SSMI15  16.1 -156.3   16.1 -156.3   16.1 -156.6 Analysis Plot     
     20180828 073453    N/A      N/A   N/A     N/A     N/A  35.0 SSMI16  16.2 -156.2   16.2 -156.2   15.8 -156.4 Analysis Plot     
     20180828 090455   -1.0      N/A  16.4% 155.54     .96  35.0 SSMI18  16.3 -155.9   16.3 -155.9   15.4 -155.8 Analysis Plot     
     20180828 181618   -6.9      N/A  52.1%  33.33    6.92  40.0    GMI  17.1 -154.3   17.1 -154.3   16.8 -154.4 Analysis Plot     
     20180828 185833   -5.8      N/A  52.1%  33.33    5.85  50.0 SSMI16  16.9 -154.2   16.9 -154.2   16.9 -154.4 Analysis Plot     
     20180828 210747   -4.5      N/A  31.5%  33.33    4.48  50.0 SSMI18  17.1 -153.8   17.1 -153.8   16.7 -153.9 Analysis Plot     
     20180828 220513 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI17  17.1 -153.6   17.1 -153.6   16.9 -153.9 Analysis Plot     
     20180829 030612   27.5  >65 kts 100.0%  11.11   12.50  55.0  AMSR2  17.1 -152.9   17.1 -152.9   17.0 -152.9 Analysis Plot     
     20180829 064758    N/A      N/A   N/A     N/A     N/A  55.0 SSMI16  17.2 -152.4   17.2 -152.4   16.8 -152.7 Analysis Plot     
     20180829 085152   19.9      N/A 100.0%  11.11    4.95  65.0 SSMI18  17.2 -152.0   17.2 -152.0   17.0 -152.2 Analysis Plot     
     20180829 094859    N/A      N/A   N/A     N/A     N/A  65.0 SSMI17  17.2 -151.8   17.2 -151.8   17.1 -152.1 Analysis Plot     
     20180829 151858   48.5  >65 kts 100.0%  44.44   33.49  70.0  AMSR2  17.4 -150.4   17.3 -150.8   17.3 -150.8 Analysis Plot     
     20180829 172136    2.6      N/A  60.3%  55.55    2.59  70.0 SSMI15  17.4 -150.1   17.3 -150.4   17.3 -150.4 Analysis Plot     
     20180829 184523   34.1  >65 kts  95.9%  22.22   19.12  70.0 SSMI16  17.5 -149.9   17.5 -150.5   17.5 -150.5 Analysis Plot     
     20180829 205539   38.5  >65 kts 100.0%  22.22   23.46  90.0 SSMI18  17.5 -149.9   17.6 -150.0   17.6 -150.0 Analysis Plot     
     20180829 215210   16.9      N/A  83.6%  33.33   16.93  90.0 SSMI17  17.5 -149.8   17.6 -149.8   17.6 -149.8 Analysis Plot     
     20180830 035001   60.3  >85 kts 100.0%  22.22   45.34  95.0  AMSR2  17.7 -148.4   17.6 -148.5   17.6 -148.5 Analysis Plot     
     20180830 090346   46.9  >65 kts 100.0%  11.11   31.93 100.0 SSMI17  17.7 -147.6   17.8 -147.7   17.8 -147.7 Analysis Plot     
     20180830 160119   85.4  >85 kts 100.0%  11.11   70.41 110.0  AMSR2  17.9 -146.0   17.8 -145.8   17.8 -145.8 Analysis Plot     
     20180830 180548   75.8  >85 kts 100.0%  22.22   60.81 110.0    GMI  17.9 -145.7   17.8 -145.3   17.8 -145.3 Analysis Plot     
     20180830 213917   69.5  >85 kts 100.0%  22.22   54.51 140.0 SSMI17  18.0 -144.8   17.8 -144.9   17.8 -144.9 Analysis Plot     
     20180831 072309   92.4  >85 kts 100.0%  22.22   77.38 145.0    GMI  18.4 -142.6   18.2 -142.4   18.2 -142.4 Analysis Plot     
     20180831 083719   63.3  >85 kts 100.0%  22.22   48.27 150.0 SSMI16  18.3 -142.4   18.1 -142.6   18.1 -142.6 Analysis Plot     
     20180831 103316   58.2  >65 kts 100.0%  22.22   43.22 150.0 SSMI18  18.4 -142.0   18.2 -142.1   18.2 -142.1 Analysis Plot     
     20180831 183810   76.8  >85 kts 100.0%  44.44   61.80 150.0 SSMI15  19.1 -140.4   19.2 -140.2   19.2 -140.2 Analysis Plot     
     20180831 200057   82.7  >85 kts 100.0%  44.44   67.68 150.0 SSMI16  19.2 -140.0   19.2 -140.0   19.2 -140.0 Analysis Plot     
     20180831 220948   77.3  >85 kts 100.0%  44.44   62.28 150.0 SSMI18  19.4 -139.6   19.3 -139.6   19.3 -139.6 Analysis Plot     
     20180831 230506 -930.0      N/A   N/A     N/A    0.00 150.0 SSMI17  19.5 -139.5   19.4 -139.4   19.4 -139.4 Analysis Plot     
     20180901 033859   64.5  >85 kts 100.0%  55.55   49.51 140.0  AMSR2  19.9 -138.7   20.0 -138.6   20.0 -138.6 Analysis Plot     
     20180901 053157   20.7  >65 kts  56.2%  44.44   20.66 140.0 SSMI15  20.3 -138.2   20.3 -138.3   20.3 -138.3 Analysis Plot     
     20180901 082204   21.5  >65 kts  58.9%  44.44   21.47 140.0 SSMI16  20.3 -138.1   20.3 -138.2   20.3 -138.2 Analysis Plot     
     20180901 093420   20.2  >65 kts  41.1%  33.33   20.24 135.0 SSMI17  20.7 -138.0   20.6 -137.8   20.6 -137.8 Analysis Plot     
     20180901 102045   15.6      N/A  57.5%  33.33   15.55 135.0 SSMI18  20.8 -137.9   20.6 -137.8   20.6 -137.8 Analysis Plot     
     20180901 111536   17.9      N/A  50.7%  33.33   17.94 135.0 SSMI17  21.0 -137.7   20.6 -137.7   20.6 -137.7 Analysis Plot     
     20180901 175437   76.6  >85 kts 100.0%  99.99   61.58 135.0    GMI  21.8 -136.6   21.8 -136.5   21.8 -136.5 Analysis Plot     
     20180901 175511   66.8  >85 kts 100.0% 111.10   51.80 135.0 SSMI15  21.8 -136.6   21.7 -136.6   21.7 -136.6 Analysis Plot     
     20180901 194746   73.2  >85 kts 100.0%  99.99   58.20 135.0 SSMI16  21.9 -136.4   21.9 -136.5   21.9 -136.5 Analysis Plot     
     20180901 215757   74.4  >85 kts 100.0%  99.99   59.41 130.0 SSMI18  22.3 -136.2   22.3 -136.2   22.3 -136.2 Analysis Plot     
     20180901 225221   74.5  >85 kts 100.0%  99.99   59.53 130.0 SSMI17  22.5 -136.1   22.4 -136.1   22.4 -136.1 Analysis Plot     
     20180902 071430   50.0  >65 kts 100.0%  77.77   35.01 115.0    GMI  23.7 -134.9   23.9 -134.8   23.9 -134.8 Analysis Plot     
     20180902 101758   47.8  >65 kts 100.0%  88.88   32.83 110.0 SSMI18  24.1 -134.7   24.0 -134.8   24.0 -134.8 Analysis Plot     
     20180902 111155   52.3  >65 kts 100.0%  66.66   37.33 110.0 SSMI17  24.3 -134.6   24.1 -134.7   24.1 -134.7 Analysis Plot     
     20180902 214533   12.4      N/A  45.2%  66.66   12.44 105.0 SSMI18  26.0 -133.6   26.0 -133.7   26.0 -133.7 Analysis Plot     
     20180902 223902   15.5      N/A  39.7%  66.66   15.47 105.0 SSMI17  26.1 -133.6   26.1 -133.5   26.1 -133.5 Analysis Plot     
     20180903 105910    4.4      N/A   8.2%  55.55    4.42  95.0 SSMI17  28.3 -132.6   27.9 -132.6   27.9 -132.6 Analysis Plot     
     20180903 174342 -930.0      N/A   N/A     N/A    0.00  90.0    GMI  30.3 -133.1   30.3 -133.1   30.2 -132.8 Analysis Plot     
     20180903 211214 -930.0      N/A   N/A     N/A    0.00  80.0 SSMI16  31.3 -133.3   31.3 -133.3   31.2 -133.1 Analysis Plot     
     20180904 041242 -930.0      N/A   N/A     N/A    0.00  75.0  AMSR2  34.3 -134.6   34.6 -135.2   34.6 -135.2 Analysis Plot     
     20180904 070800    1.8      N/A  26.0%  66.66    1.84  75.0    GMI  36.0 -135.5   36.5 -135.9   36.5 -135.9 Analysis Plot     
     20180904 091832    5.9      N/A   N/A  111.10    5.93  65.0 SSMI18  36.8 -136.4   36.8 -136.4   36.8 -135.8 Analysis Plot     
     20180904 101127    N/A      N/A   N/A     N/A     N/A  65.0 SSMI17  37.3 -136.6   37.3 -136.6   37.3 -136.4 Analysis Plot     
     20180904 161429    2.5      N/A   N/A   11.11    2.53  55.0  AMSR2  41.8 -138.1   41.8 -138.1   41.8 -138.9 Analysis Plot     
     20180904 191610 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI15  43.1 -138.3   43.1 -138.3   43.5 -138.7 Analysis Plot     
     20180904 203700 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI16  43.7 -138.4   43.7 -138.4   44.5 -139.1 Analysis Plot     
     20180904 230325 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI18  45.0 -138.5   45.0 -138.5   45.9 -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.