Tropical Depression 13S


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              
     20190206 021947   -2.2      N/A  38.4%  44.44    2.17  35.0 SSMI18 -12.4  -53.7  -12.4  -53.7  -12.2  -53.5 Analysis Plot     
     20190206 124437  -15.5      N/A  79.5%  33.33   15.48  40.0 SSMI16 -11.9  -53.2  -12.4  -53.4  -12.4  -53.4 Analysis Plot     
     20190206 142319  -40.1      N/A 100.0%  44.44   25.08  45.0 SSMI18 -12.3  -53.4  -12.3  -53.4  -12.4  -53.3 Analysis Plot     
     20190207 001759   10.2      N/A   N/A   44.44   10.16  55.0 SSMI15 -12.6  -53.3  -12.6  -53.3  -12.1  -53.1 Analysis Plot     
     20190207 020827   13.3      N/A  30.1%  99.99   13.29  65.0    GMI -12.6  -53.2  -12.2  -53.4  -12.2  -53.4 Analysis Plot     
     20190207 041932    6.5      N/A   N/A  111.10    6.54  65.0 SSMI17 -12.6  -53.2  -12.4  -53.1  -12.4  -53.1 Analysis Plot     
     20190207 123129 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI16 -12.7  -53.6  -12.8  -53.5  -12.8  -53.5 Analysis Plot     
     20190207 131551    4.1      N/A  30.1% 111.10    4.13  70.0 SSMI15 -12.7  -53.6  -13.1  -53.8  -13.1  -53.8 Analysis Plot     
     20190207 133618    5.8      N/A   4.1% 144.43    5.84  70.0    GMI -12.7  -53.6  -13.3  -53.6  -13.3  -53.6 Analysis Plot     
     20190207 141102    3.7      N/A   5.5% 144.43    3.74  75.0 SSMI18 -13.2  -53.8  -13.4  -53.8  -13.4  -53.8 Analysis Plot     
     20190208 001319   15.5      N/A  57.5%  77.77   15.52  80.0 SSMI15 -14.4  -54.6  -14.5  -54.0  -14.5  -54.0 Analysis Plot     
     20190208 100410   53.5  >65 kts 100.0%  55.55   38.52 100.0  AMSR2 -15.6  -55.2  -15.7  -54.9  -15.7  -54.9 Analysis Plot     
     20190208 113411   17.5      N/A  61.6%  44.44   17.50 100.0 SSMI15 -15.8  -55.5  -15.7  -55.2  -15.7  -55.2 Analysis Plot     
     20190208 135923   65.6  >85 kts 100.0%  55.55   50.62 105.0 SSMI18 -16.1  -55.5  -15.9  -55.5  -15.9  -55.5 Analysis Plot     
     20190208 233857   55.3  >65 kts 100.0%  55.55   40.31 110.0 SSMI15 -17.0  -57.3  -16.9  -56.9  -16.9  -56.9 Analysis Plot     
     20190209 115138 -930.0      N/A   N/A     N/A    0.00 115.0    GMI -18.5  -60.2  -18.5  -60.2  -19.0  -60.7 Analysis Plot     
     20190209 115152 -930.0      N/A   N/A     N/A    0.00 115.0    GMI -18.5  -60.2  -18.9  -60.5  -18.9  -60.5 Analysis Plot     
     20190209 124853   70.4  >85 kts 100.0%  44.44   55.37 115.0 SSMI15 -18.4  -59.9  -18.5  -60.1  -18.5  -60.1 Analysis Plot     
     20190209 135143   68.7  >85 kts 100.0%  44.44   53.68 115.0 SSMI18 -18.6  -60.4  -19.0  -60.6  -19.0  -60.6 Analysis Plot     
     20190209 232032   41.5  >65 kts 100.0%  44.44   26.47 110.0 SSMI15 -19.9  -62.7  -20.1  -62.8  -20.1  -62.8 Analysis Plot     
     20190210 012857   50.3  >65 kts 100.0%  44.44   35.27 110.0 SSMI18 -20.1  -63.1  -20.3  -63.5  -20.3  -63.5 Analysis Plot     
     20190210 033057 -930.0      N/A   N/A     N/A    0.00 100.0 SSMI17 -20.5  -63.6  -20.8  -63.6  -20.8  -63.6 Analysis Plot     
     20190210 095043   24.8  >65 kts  45.2%  33.33   24.82  95.0  AMSR2 -21.5  -65.0  -21.6  -65.3  -21.6  -65.3 Analysis Plot     
     20190210 120728    9.1      N/A  43.8% 122.21    9.15  95.0 SSMI15 -21.6  -65.2  -21.9  -65.4  -21.9  -65.4 Analysis Plot     
     20190210 133925   29.6  >65 kts 100.0%  22.22   14.59  90.0 SSMI18 -21.8  -65.6  -22.7  -66.1  -22.7  -66.1 Analysis Plot     
     20190210 204504    N/A      N/A   N/A     N/A     N/A  70.0  AMSR2 -22.5  -67.4  -22.5  -67.4  -23.3  -66.7 Analysis Plot     
     20190210 230552   12.6      N/A  12.3% 111.10   12.57  70.0 SSMI15 -22.6  -67.6  -22.6  -67.6  -22.9  -67.6 Analysis Plot     
     20190211 011558 -930.0      N/A   N/A     N/A    0.00  70.0 SSMI18 -22.8  -67.9  -22.8  -67.9  -23.6  -68.2 Analysis Plot     
     20190211 085414    5.2      N/A  64.4%  44.44    5.19  60.0  AMSR2 -24.0  -69.4  -24.0  -69.4  -24.5  -69.4 Analysis Plot     
     20190211 115956    1.2      N/A  46.6%  55.55    1.24  60.0 SSMI15 -24.1  -69.7  -24.1  -69.7  -24.6  -69.8 Analysis Plot     
     20190211 132652    4.8      N/A   N/A   55.55    4.81  60.0 SSMI18 -24.3  -70.1  -24.3  -70.1  -24.8  -70.4 Analysis Plot     
     20190211 231226   -0.4      N/A  27.4%  88.88     .41  50.0 SSMI16 -25.4  -72.3  -25.4  -72.3  -25.4  -72.9 Analysis Plot     
     20190212 115435  -41.3      N/A 100.0%  99.99   26.30  50.0 SSMI15 -26.0  -74.0  -26.0  -74.0  -25.5  -74.0 Analysis Plot     
     20190212 131420  -19.4      N/A  35.6% 111.10   19.42  50.0 SSMI18 -26.0  -74.3  -26.0  -74.3  -25.5  -74.3 Analysis Plot     
     20190213 010058    2.9      N/A  34.2% 122.21    2.90  55.0 SSMI18 -25.2  -76.0  -25.2  -76.0  -25.2  -76.4 Analysis Plot     
     20190213 084104    9.1      N/A  29.0% 144.43    9.12  55.0  AMSR2 -25.5  -77.6  -25.5  -77.6  -25.7  -78.0 Analysis Plot     
     20190213 113914   14.5      N/A  50.7%  77.77   14.49  55.0 SSMI15 -25.5  -77.9  -25.5  -77.9  -26.1  -78.2 Analysis Plot     
     20190213 131302    N/A      N/A   N/A     N/A     N/A  55.0 SSMI18 -25.8  -78.6  -25.8  -78.6  -26.0  -79.3 Analysis Plot     
     20190213 193838   -6.4      N/A   9.6% 144.43    6.44  45.0  AMSR2 -26.6  -79.9  -26.6  -79.9  -26.5  -79.9 Analysis Plot     
     20190213 215615    N/A      N/A   N/A     N/A     N/A  45.0 SSMI15 -26.8  -80.4  -26.8  -80.4  -27.1  -81.0 Analysis Plot     
     20190213 224942    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16 -26.8  -80.4  -26.8  -80.4  -27.0  -81.3 Analysis Plot     
     20190214 074552  -16.6      N/A  42.5% 122.21   16.63  45.0  AMSR2 -27.7  -84.2  -27.7  -84.2  -28.0  -84.6 Analysis Plot     
     20190214 090604 -930.0      N/A   N/A     N/A    0.00  45.0    GMI -27.9  -84.7  -28.1  -85.1  -28.1  -85.1 Analysis Plot     
     20190214 105848  -14.5      N/A  34.2% 111.10   14.46  45.0 SSMI15 -28.0  -84.9  -28.0  -84.9  -28.2  -85.4 Analysis Plot     
     20190214 110350   -9.7      N/A  13.7%  99.99    9.73  45.0 SSMI16 -28.0  -85.1  -28.0  -85.1  -28.3  -85.7 Analysis Plot     
     20190214 130002   -7.6      N/A   N/A   55.55    7.60  45.0 SSMI18 -28.3  -85.7  -28.3  -85.7  -28.6  -86.3 Analysis Plot     
     20190214 214638   -6.6      N/A   N/A  199.98    6.61  40.0 SSMI15 -29.4  -88.4  -29.4  -88.4  -28.8  -88.0 Analysis Plot     
     20190215 002527   -5.0      N/A   N/A  199.98    4.98  40.0 SSMI18 -29.8  -89.0  -29.8  -89.0  -29.2  -88.8 Analysis Plot     
     20190215 110343    N/A      N/A   N/A     N/A     N/A  40.0 SSMI15 -30.6  -90.3  -30.6  -90.3  -30.0  -89.9 Analysis Plot     
     20190215 125147   -0.1      N/A   N/A   11.11     .13  40.0 SSMI17 -31.0  -90.8  -31.0  -90.8  -30.6  -90.7 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.