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              
     20210906 201732  -33.6      N/A  91.8%  33.33   18.60  30.0 SSMI16  15.2 -137.6   15.2 -137.6   15.4 -137.5 Analysis Plot     
     20210907 035113 -930.0      N/A   N/A     N/A    0.00  50.0  AMSR2  15.7 -136.3   15.7 -136.3   16.0 -136.2 Analysis Plot     
     20210907 094330 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI18  16.2 -135.4   16.1 -135.0   16.1 -135.0 Analysis Plot     
     20210907 114106    2.3      N/A  82.2%  44.44    2.27  65.0 SSMI17  16.3 -135.1   16.3 -135.1   16.3 -135.1 Analysis Plot     
     20210907 212225   41.2  >65 kts 100.0%  11.11   26.16 125.0    GMI  16.3 -132.9   16.1 -132.8   16.1 -132.8 Analysis Plot     
     20210907 231816   29.6  >65 kts 100.0%  11.11   14.63 125.0 SSMI17  16.3 -132.8   16.0 -132.6   16.0 -132.6 Analysis Plot     
     20210908 043312    N/A      N/A   N/A     N/A     N/A 120.0  AMSR2  16.0 -131.8   15.6 -131.6   15.6 -131.6 Analysis Plot     
     20210908 093045    N/A      N/A   N/A     N/A     N/A 140.0 SSMI18  15.5 -130.9   15.5 -131.1   15.5 -131.1 Analysis Plot     
     20210908 112741   22.5  >65 kts 100.0%  11.11    7.46 140.0 SSMI17  15.5 -130.6   15.3 -130.9   15.3 -130.9 Analysis Plot     
     20210908 164634   49.3  >65 kts 100.0%  11.11   34.33 135.0  AMSR2  15.5 -129.4   15.4 -129.3   15.4 -129.3 Analysis Plot     
     20210908 210814    5.1      N/A  61.6%  88.88    5.10 135.0 SSMI18  15.5 -128.7   15.4 -128.8   15.4 -128.8 Analysis Plot     
     20210908 213024    N/A      N/A   N/A     N/A     N/A 135.0 SSMI16  15.5 -128.6   15.4 -128.8   15.4 -128.8 Analysis Plot     
     20210908 230406   21.3  >65 kts 100.0%  66.66    6.30 135.0 SSMI17  15.5 -128.4   15.5 -128.5   15.5 -128.5 Analysis Plot     
     20210909 051648   41.3  >65 kts 100.0%  22.22   26.32 140.0  AMSR2  15.8 -127.3   15.7 -127.3   15.7 -127.3 Analysis Plot     
     20210909 075555   31.5  >65 kts 100.0%  11.11   16.53 140.0    GMI  16.0 -126.8   15.9 -126.7   15.9 -126.7 Analysis Plot     
     20210909 091758    6.9      N/A  75.3% 122.21    6.86 130.0 SSMI18  15.9 -126.9   15.8 -126.9   15.8 -126.9 Analysis Plot     
     20210909 172857   81.0  >85 kts 100.0%  55.55   66.02 120.0  AMSR2  16.7 -125.2   16.5 -125.1   16.5 -125.1 Analysis Plot     
     20210909 211246   97.4  >85 kts 100.0%  44.44   82.42 120.0    GMI  16.9 -124.6   16.9 -124.5   16.9 -124.5 Analysis Plot     
     20210909 211734   59.1  >65 kts 100.0%  44.44   44.10 120.0 SSMI16  16.8 -124.6   16.8 -124.7   16.8 -124.7 Analysis Plot     
     20210910 110044 -930.0      N/A   N/A     N/A    0.00 145.0 SSMI17  18.4 -123.0   18.5 -123.1   18.5 -123.1 Analysis Plot     
     20210911 050532   17.4      N/A  65.8%  22.22   17.41 145.0  AMSR2  20.9 -121.8   20.9 -121.5   20.9 -121.5 Analysis Plot     
     20210911 074509    9.1      N/A  32.9%  22.22    9.09 145.0    GMI  21.3 -121.8   21.1 -121.7   21.1 -121.7 Analysis Plot     
     20210911 085224 -930.0      N/A   N/A     N/A    0.00 140.0 SSMI18  21.3 -121.6   21.3 -121.4   21.3 -121.4 Analysis Plot     
     20210911 104719    6.6      N/A  61.6%  22.22    6.57 140.0 SSMI17  21.6 -121.6   21.5 -121.9   21.5 -121.9 Analysis Plot     
     20210911 171549   67.1  >85 kts 100.0%  22.22   52.12 120.0  AMSR2  22.6 -121.8   22.7 -122.0   22.7 -122.0 Analysis Plot     
     20210911 210449   60.1  >85 kts 100.0%  22.22   45.08 110.0    GMI  23.3 -122.0   23.3 -122.2   23.3 -122.2 Analysis Plot     
     20210912 000600   42.3  >65 kts 100.0%  22.22   27.26 110.0 SSMI17  23.7 -122.0   23.6 -122.2   23.6 -122.2 Analysis Plot     
     20210912 065119 -930.0      N/A   N/A     N/A    0.00 110.0    GMI  25.0 -122.3   25.0 -122.3   25.1 -122.4 Analysis Plot     
     20210912 083934   37.9  >65 kts 100.0%  22.22   22.91 110.0 SSMI18  25.5 -122.3   25.5 -122.3   25.5 -122.3 Analysis Plot     
     20210912 090245   34.0  >65 kts 100.0%  22.22   19.03 110.0 SSMI16  25.6 -122.3   25.5 -122.4   25.5 -122.4 Analysis Plot     
     20210912 121515    5.7      N/A  21.9%  55.55    5.66 110.0 SSMI17  26.3 -122.3   26.0 -122.5   26.0 -122.5 Analysis Plot     
     20210912 175700   59.5  >65 kts 100.0%  33.33   44.52  95.0  AMSR2  27.5 -122.8   27.6 -123.1   27.6 -123.1 Analysis Plot     
     20210912 221916   38.2  >65 kts 100.0%  22.22   23.19  85.0 SSMI16  28.2 -123.0   28.4 -123.3   28.4 -123.3 Analysis Plot     
     20210912 235242   26.3  >65 kts 100.0%  22.22   11.28  85.0 SSMI17  28.4 -123.0   28.8 -123.5   28.8 -123.5 Analysis Plot     
     20210913 045529    3.2      N/A  16.4%  99.99    3.23  85.0  AMSR2  29.6 -123.6   30.0 -123.5   30.0 -123.5 Analysis Plot     
     20210913 083858    0.6      N/A   N/A   55.55     .59  75.0 SSMI16  30.9 -123.3   30.9 -123.3   30.5 -123.2 Analysis Plot     
     20210913 100808    N/A      N/A   N/A     N/A     N/A  75.0 SSMI18  31.0 -123.3   31.0 -123.3   30.7 -123.2 Analysis Plot     
     20210913 120150    0.6      N/A   2.7% 199.98     .59  75.0 SSMI17  31.2 -123.3   31.2 -123.3   31.0 -123.5 Analysis Plot     
     20210913 205714 -930.0      N/A   N/A     N/A    0.00  65.0    GMI  31.5 -123.6   31.5 -123.6   31.0 -124.1 Analysis Plot     
     20210913 220610    3.6      N/A   2.7% 188.87    3.64  65.0 SSMI16  31.5 -123.6   31.5 -123.6   31.0 -123.8 Analysis Plot     
     20210913 233927    2.5      N/A   N/A  211.09    2.51  65.0 SSMI17  31.5 -123.7   31.5 -123.7   31.1 -124.0 Analysis Plot     
     20210914 082548    0.8      N/A   N/A  166.65     .84  55.0 SSMI16  31.3 -124.1   31.3 -124.1   30.5 -124.6 Analysis Plot     
     20210914 114827 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI17  30.5 -124.6   30.5 -124.6   30.3 -125.1 Analysis Plot     
     20210914 200528 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  30.2 -125.4   30.2 -125.4   30.4 -125.4 Analysis Plot     
     20210914 213228 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  30.2 -125.4   30.2 -125.4   30.8 -125.0 Analysis Plot     
     20210914 215342   -1.8      N/A  12.3% 199.98    1.76  30.0 SSMI16  30.2 -125.4   30.2 -125.4   30.8 -125.2 Analysis Plot     
     20210914 232457   -2.4      N/A  11.0% 144.43    2.43  30.0 SSMI17  30.2 -125.4   30.2 -125.4   30.4 -125.3 Analysis Plot     
     20210915 055002    N/A      N/A   N/A     N/A     N/A  35.0    GMI  30.1 -126.1   30.1 -126.1   30.3 -125.9 Analysis Plot     
     20210915 081247   -1.7      N/A   2.7% 199.98    1.74  35.0 SSMI16  30.0 -126.0   30.0 -126.0   29.9 -125.8 Analysis Plot     
     20210915 094236    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18  30.2 -126.1   30.2 -126.1   30.0 -125.8 Analysis Plot     
     20210915 113456   -0.7      N/A   N/A  177.76     .69  45.0 SSMI17  30.2 -126.1   30.2 -126.1   30.1 -125.8 Analysis Plot     
     20210915 204819   -9.1      N/A  16.4%  55.55    9.09  45.0 SSMI18  30.4 -125.4   30.4 -125.4   30.4 -125.2 Analysis Plot     
     20210915 214033  -12.4      N/A   9.6%  55.55   12.36  45.0 SSMI16  30.4 -125.4   30.4 -125.4   30.4 -125.2 Analysis Plot     
     20210915 232155  -10.3      N/A   N/A   33.33   10.27  50.0 SSMI17  30.6 -125.2   30.6 -125.2   30.3 -125.0 Analysis Plot     
     20210916 075937    1.4      N/A   N/A   44.44    1.41  55.0 SSMI16  31.1 -125.3   31.1 -125.3   31.1 -125.5 Analysis Plot     
     20210916 092949    N/A      N/A   N/A     N/A     N/A  55.0 SSMI18  31.3 -125.6   31.3 -125.6   31.2 -125.5 Analysis Plot     
     20210916 112131    1.7      N/A   N/A   44.44    1.74  55.0 SSMI17  31.5 -125.8   31.5 -125.8   31.4 -125.8 Analysis Plot     
     20210916 173045   -7.7      N/A  50.7%  11.11    7.74  50.0  AMSR2  32.3 -126.8   32.3 -126.8   32.5 -126.8 Analysis Plot     
     20210916 195616 -930.0      N/A   N/A     N/A    0.00  50.0    GMI  32.6 -127.1   32.6 -127.1   32.5 -126.9 Analysis Plot     
     20210916 210722   -2.2      N/A   4.1% 288.86    2.20  50.0 SSMI18  32.6 -127.2   32.6 -127.2   32.4 -126.8 Analysis Plot     
     20210916 212642   -1.8      N/A   N/A  266.64    1.83  50.0 SSMI16  32.6 -127.3   32.6 -127.3   32.5 -126.9 Analysis Plot     
     20210916 225754 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI17  32.7 -127.7   32.7 -127.7   32.5 -127.1 Analysis Plot     
     20210917 043146 -930.0      N/A   N/A     N/A    0.00  45.0  AMSR2  33.2 -128.6   33.2 -128.6   32.8 -129.0 Analysis Plot     
     20210917 074634 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  33.4 -129.4   33.4 -129.4   32.7 -130.0 Analysis Plot     
     20210917 091712 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  33.5 -129.9   33.5 -129.9   32.7 -129.9 Analysis Plot     
     20210917 110812 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI17  33.7 -130.4   33.7 -130.4   32.9 -131.4 Analysis Plot     
     20210917 163534 -930.0      N/A   N/A     N/A    0.00  40.0  AMSR2  34.0 -133.3   34.0 -133.3   34.8 -132.8 Analysis Plot     
     20210917 190542 -930.0      N/A   N/A     N/A    0.00  40.0    GMI  34.1 -134.0   34.1 -134.0   33.9 -134.0 Analysis Plot     
     20210917 211443 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  34.0 -135.0   34.0 -135.0   34.2 -134.2 Analysis Plot     
     20210917 224453 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  34.0 -135.5   34.0 -135.5   34.6 -134.9 Analysis Plot     
     20210918 033706   -1.5      N/A   N/A   22.22    1.48  25.0  AMSR2  34.2 -137.4   34.2 -137.4   34.3 -136.9 Analysis Plot     
     20210918 073425   -1.5      N/A   N/A   88.88    1.50  25.0 SSMI16  34.3 -138.4   34.3 -138.4   34.8 -138.1 Analysis Plot     
     20210918 090421   -1.3      N/A   N/A   44.44    1.32  25.0 SSMI18  34.3 -138.8   34.3 -138.8   34.7 -138.7 Analysis Plot     
     20210918 105443   -0.3      N/A   N/A   44.44     .28  25.0 SSMI17  34.3 -139.3   34.3 -139.3   34.6 -139.0 Analysis Plot     
     20210918 204057 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI18  34.3 -141.7   34.3 -141.7   34.9 -140.6 Analysis Plot     
     20210918 210128   -1.6      N/A   N/A  211.09    1.57  25.0 SSMI16  34.3 -141.8   34.3 -141.8   34.7 -140.9 Analysis Plot     
     20210918 223138 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI17  34.3 -142.1   34.3 -142.1   34.7 -141.2 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.