Tropical Depression 19U

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              
     20190319 202449   -7.1      N/A  23.3%  77.77    7.09  35.0 SSMI15 -14.9 -119.6  -15.2 -119.5  -15.2 -119.5 Analysis Plot     
     20190319 223621   -2.5      N/A   9.6% 222.20    2.47  35.0 SSMI18 -15.0 -119.3  -15.0 -119.3  -15.2 -119.2 Analysis Plot     
     20190320 083827  -21.9      N/A 100.0%  33.33    6.90  50.0 SSMI16 -15.4 -118.3  -15.7 -118.3  -15.7 -118.3 Analysis Plot     
     20190320 101559  -37.0      N/A 100.0%  11.11   21.97  50.0    GMI -15.5 -118.1  -15.8 -118.1  -15.8 -118.1 Analysis Plot     
     20190320 105610  -20.4      N/A 100.0%  22.22    5.42  50.0 SSMI18 -15.5 -118.2  -15.8 -118.1  -15.8 -118.1 Analysis Plot     
     20190320 222334   37.9  >65 kts 100.0%  22.22   22.93  90.0 SSMI18 -16.0 -117.4  -16.0 -117.8  -16.0 -117.8 Analysis Plot     
     20190320 235251   38.7  >65 kts 100.0%  11.11   23.66  90.0 SSMI17 -16.1 -117.4  -16.3 -117.7  -16.3 -117.7 Analysis Plot     
     20190321 082529   53.2  >65 kts 100.0%  33.33   38.24 105.0 SSMI16 -17.0 -117.4  -17.0 -117.6  -17.0 -117.6 Analysis Plot     
     20190321 103420   63.6  >85 kts 100.0%  33.33   48.56 105.0 SSMI18 -17.2 -117.4  -17.2 -117.5  -17.2 -117.5 Analysis Plot     
     20190321 173207   52.2  >65 kts 100.0%  33.33   37.19 105.0  AMSR2 -17.5 -117.1  -17.3 -117.1  -17.3 -117.1 Analysis Plot     
     20190321 221111   61.0  >85 kts 100.0%  66.66   46.04 100.0 SSMI18 -17.6 -116.8  -17.4 -117.1  -17.4 -117.1 Analysis Plot     
     20190321 233827   68.0  >85 kts 100.0%  55.55   53.00 100.0 SSMI17 -17.6 -116.8  -17.4 -116.9  -17.4 -116.9 Analysis Plot     
     20190322 103114   12.6      N/A  31.5% 199.98   12.56  95.0 SSMI18 -17.9 -116.6  -17.5 -117.1  -17.5 -117.1 Analysis Plot     
     20190322 114844   10.8      N/A  61.6%  55.55   10.81  95.0 SSMI17 -18.0 -116.6  -17.8 -117.0  -17.8 -117.0 Analysis Plot     
     20190322 215820   41.1  >65 kts 100.0%  88.88   26.14  90.0 SSMI18 -18.4 -117.1  -18.4 -117.2  -18.4 -117.2 Analysis Plot     
     20190322 232458   45.2  >65 kts 100.0%  99.99   30.20  90.0 SSMI17 -18.5 -117.2  -18.5 -117.1  -18.5 -117.1 Analysis Plot     
     20190323 091543   14.7      N/A  74.0% 122.21   14.68  90.0    GMI -19.2 -117.3  -19.3 -117.3  -19.3 -117.3 Analysis Plot     
     20190323 100912   42.5  >65 kts 100.0% 111.10   27.49  90.0 SSMI18 -19.2 -117.3  -19.4 -117.4  -19.4 -117.4 Analysis Plot     
     20190323 113514   19.8      N/A  63.0%  99.99   19.84  90.0 SSMI17 -19.3 -117.3  -19.5 -117.4  -19.5 -117.4 Analysis Plot     
     20190323 210334   60.0  >85 kts 100.0%  99.99   45.01  85.0 SSMI16 -19.8 -117.7  -20.0 -117.6  -20.0 -117.6 Analysis Plot     
     20190323 214622 -930.0      N/A   N/A     N/A    0.00  85.0 SSMI18 -19.9 -117.7  -20.0 -117.8  -20.0 -117.8 Analysis Plot     
     20190323 231132   24.2  >65 kts  57.5%  77.77   24.22  85.0 SSMI17 -19.9 -117.8  -20.0 -117.7  -20.0 -117.7 Analysis Plot     
     20190324 053140    8.5      N/A   4.1% 222.20    8.49  85.0  AMSR2 -20.7 -117.8  -20.8 -117.9  -20.8 -117.9 Analysis Plot     
     20190324 095638    N/A      N/A   N/A     N/A     N/A  80.0 SSMI18 -20.6 -117.7  -20.6 -117.7  -20.9 -118.0 Analysis Plot     
     20190324 112118    N/A      N/A   N/A     N/A     N/A  80.0 SSMI17 -20.6 -117.7  -20.6 -117.7  -20.9 -117.9 Analysis Plot     
     20190324 205416    1.4      N/A  19.4% 177.76    1.42  60.0 SSMI16 -20.3 -117.6  -20.3 -117.6  -20.6 -118.4 Analysis Plot     
     20190324 225805    0.9      N/A   N/A   33.33     .91  60.0 SSMI17 -20.4 -117.4  -20.4 -117.4  -20.9 -118.6 Analysis Plot     
     20190325 061424    N/A      N/A   N/A     N/A     N/A  45.0  AMSR2 -20.4 -117.1  -20.4 -117.1  -20.4 -117.1 Analysis Plot     
     20190325 090636 -930.0      N/A   N/A     N/A    0.00  45.0    GMI -20.5 -116.9  -20.5 -116.9  -20.5 -116.7 Analysis Plot     
     20190325 091408    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16 -20.5 -117.0  -20.5 -117.0  -20.6 -118.0 Analysis Plot     
     20190325 111808    N/A      N/A   N/A     N/A     N/A  45.0 SSMI17 -20.5 -116.9  -20.5 -116.9  -20.8 -118.2 Analysis Plot     
     20190325 204101   -0.1      N/A   N/A  222.20     .15  40.0 SSMI16 -20.5 -116.2  -20.5 -116.2  -20.5 -115.9 Analysis Plot     
     20190326 090104   -2.4      N/A   N/A   44.44    2.38  30.0 SSMI16 -21.0 -114.9  -21.0 -114.9  -21.7 -114.9 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.