Tropical Storm 01C


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              
     20180930 041341 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  11.4  160.6   11.4  160.6   11.4  161.6 Analysis Plot     
     20180930 134325 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI15  11.7  163.7   11.5  163.7   11.5  163.7 Analysis Plot     
     20180930 173659  -10.2      N/A  45.2%  77.77   10.19  45.0 SSMI18  11.7  164.3   11.8  164.1   11.8  164.1 Analysis Plot     
     20180930 183910  -22.2      N/A  63.0% 111.10   22.24  45.0    GMI  11.8  164.7   11.8  164.6   11.8  164.6 Analysis Plot     
     20181001 032635   37.9  >65 kts 100.0%  33.33   22.95  65.0 SSMI16  11.9  166.3   11.7  166.5   11.7  166.5 Analysis Plot     
     20181001 060701   64.7  >85 kts 100.0%  44.44   49.66  65.0    GMI  12.0  166.9   11.8  167.0   11.8  167.0 Analysis Plot     
     20181001 073302   59.3  >65 kts 100.0%  33.33   44.29  65.0 SSMI17  12.0  167.0   11.7  167.0   11.7  167.0 Analysis Plot     
     20181001 124511   83.8  >85 kts 100.0%  33.33   68.85  90.0  AMSR2  12.1  168.1   12.2  168.0   12.2  168.0 Analysis Plot     
     20181001 164725   74.7  >85 kts 100.0%  33.33   59.74 105.0 SSMI16  12.4  168.4   12.4  168.5   12.4  168.5 Analysis Plot     
     20181002 025400   52.2  >65 kts 100.0%  22.22   37.24 125.0 SSMI16  13.5  169.8   13.0  169.7   13.0  169.7 Analysis Plot     
     20181002 065215   44.9  >65 kts 100.0%  22.22   29.85 140.0 SSMI18  13.6  170.0   13.2  169.8   13.2  169.8 Analysis Plot     
     20181002 072051   47.2  >65 kts 100.0%  22.22   32.24 140.0 SSMI17  13.6  170.1   13.3  169.8   13.3  169.8 Analysis Plot     
     20181002 150113   15.1      N/A  46.6%  22.22   15.13 135.0 SSMI15  14.7  170.0   14.6  170.1   14.6  170.1 Analysis Plot     
     20181002 163410   38.2  >65 kts 100.0%  22.22   23.18 135.0 SSMI16  14.8  170.0   14.7  170.1   14.7  170.1 Analysis Plot     
     20181002 183014   17.4      N/A  56.2%  99.99   17.42 135.0    GMI  15.3  170.1   15.2  170.1   15.2  170.1 Analysis Plot     
     20181002 193025   19.0      N/A  39.7%  99.99   18.98 135.0 SSMI17  15.3  170.1   15.2  170.2   15.2  170.2 Analysis Plot     
     20181003 043347   64.3  >85 kts 100.0%  77.77   49.28 115.0 SSMI16  16.8  170.2   16.6  170.1   16.6  170.1 Analysis Plot     
     20181003 063901   73.6  >85 kts 100.0%  66.66   58.63 115.0 SSMI18  17.3  170.1   17.0  170.1   17.0  170.1 Analysis Plot     
     20181003 072958   77.2  >85 kts 100.0%  55.55   62.17 115.0 SSMI17  17.4  170.1   17.2  170.1   17.2  170.1 Analysis Plot     
     20181003 144225   51.5  >65 kts 100.0%  55.55   36.52 120.0 SSMI15  19.6  169.4   19.5  169.4   19.5  169.4 Analysis Plot     
     20181003 161314   50.8  >65 kts 100.0%  55.55   35.83 120.0 SSMI16  19.7  169.4   19.7  169.3   19.7  169.3 Analysis Plot     
     20181003 190807   21.4  >65 kts  68.5%  55.55   21.45 120.0 SSMI17  20.5  169.0   20.5  168.9   20.5  168.9 Analysis Plot     
     20181004 014512   12.4      N/A  50.7% 188.87   12.36 115.0 SSMI15  23.0  167.9   22.5  167.7   22.5  167.7 Analysis Plot     
     20181004 042026    5.8      N/A  67.1% 188.87    5.77 115.0 SSMI16  23.2  167.9   22.7  167.6   22.7  167.6 Analysis Plot     
     20181004 050225 -930.0      N/A   N/A     N/A    0.00 115.0    GMI  23.7  167.7   23.5  167.2   23.5  167.2 Analysis Plot     
     20181004 062716   45.8  >65 kts 100.0% 133.32   30.78 115.0 SSMI18  23.9  167.6   23.2  167.3   23.2  167.3 Analysis Plot     
     20181004 071631   27.1  >65 kts  68.5% 144.43   27.09 115.0 SSMI17  24.1  167.6   23.4  167.2   23.4  167.2 Analysis Plot     
     20181004 131212 -930.0      N/A   N/A     N/A    0.00 100.0  AMSR2  26.4  166.5   26.4  166.5   25.7  165.3 Analysis Plot     
     20181004 161322    7.2      N/A   9.6% 166.65    7.23 100.0 SSMI16  26.9  166.5   26.8  165.8   26.8  165.8 Analysis Plot     
     20181004 182418   10.1      N/A   N/A  188.87   10.10 100.0    GMI  27.8  166.6   28.4  166.2   28.4  166.2 Analysis Plot     
     20181004 185426    3.9      N/A   N/A  222.20    3.87 100.0 SSMI17  27.7  166.6   28.0  166.1   28.0  166.1 Analysis Plot     
     20181005 013532    3.1      N/A   4.1%  22.22    3.09  70.0 SSMI15  30.1  167.9   30.1  167.9   30.0  167.4 Analysis Plot     
     20181005 040913    0.6      N/A   5.5%  33.33     .64  70.0    GMI  30.4  168.1   30.4  168.1   30.4  168.0 Analysis Plot     
     20181005 041545    1.4      N/A   6.8%  66.66    1.37  70.0 SSMI16  30.2  168.0   30.2  168.0   30.1  167.6 Analysis Plot     
     20181005 063649    0.2      N/A   8.2%  99.99     .21  70.0 SSMI18  30.7  168.3   30.7  168.3   30.3  167.7 Analysis Plot     
     20181005 070304    N/A      N/A   N/A     N/A     N/A  70.0 SSMI17  30.8  168.3   30.8  168.3   30.5  168.2 Analysis Plot     
     20181005 184046 -930.0      N/A   N/A     N/A    0.00  55.0 SSMI17  31.9  168.1   31.9  168.1   31.3  168.3 Analysis Plot     
     20181006 031542 -930.0      N/A   N/A     N/A    0.00  40.0    GMI  32.9  166.6   32.9  166.6   33.0  165.9 Analysis Plot     
     20181006 062409   -1.0      N/A   N/A   55.55     .95  40.0 SSMI18  33.4  166.1   33.4  166.1   33.6  166.3 Analysis Plot     
     20181006 182719 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17  37.4  162.7   37.4  162.7   36.7  163.3 Analysis Plot     
     20181007 022307   -1.0      N/A  11.0%  88.88    1.03  45.0    GMI  42.5  159.5   42.5  159.5   41.8  158.9 Analysis Plot     
     20181007 034957   -0.7      N/A   N/A   55.55     .74  45.0 SSMI16  42.6  159.3   42.6  159.3   41.5  159.4 Analysis Plot     
     20181007 061248   -2.5      N/A   1.4%  99.99    2.51  45.0 SSMI17  44.2  158.0   44.2  158.0   43.8  156.9 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.