Tropical Depression 13E

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              
     20180807 043515   -4.5      N/A  84.9%  33.33    4.50  30.0 SSMI17  14.5  124.1   14.5  124.1   14.4  124.0 Analysis Plot     
     20180807 074835  -34.8      N/A  95.9%  33.33   19.78  45.0    GMI  14.4  124.8   14.4  124.8   14.4  125.0 Analysis Plot     
     20180807 112340  -31.5      N/A  89.0%  99.99   16.53  45.0 SSMI15  14.3  125.5   14.3  125.5   13.9  125.6 Analysis Plot     
     20180807 135350   -8.3      N/A  34.2%  66.66    8.35  45.0 SSMI16  13.8  126.2   13.8  126.2   13.3  126.4 Analysis Plot     
     20180807 152410   -4.7      N/A  12.3%  66.66    4.66  45.0 SSMI18  13.8  126.4   13.8  126.4   14.1  126.0 Analysis Plot     
     20180807 163846  -12.2      N/A   N/A   66.66   12.16  45.0 SSMI17  13.8  126.6   13.8  126.6   13.9  126.2 Analysis Plot     
     20180807 191506   -6.4      N/A   N/A   44.44    6.36  50.0    GMI  13.6  127.0   13.6  127.0   14.0  126.9 Analysis Plot     
     20180807 215000   -8.8      N/A  15.1%  77.77    8.82  45.0  AMSR2  13.7  127.2   13.7  127.2   13.9  127.3 Analysis Plot     
     20180808 024426   -2.4      N/A   4.1% 155.54    2.43  45.0 SSMI17  14.2  127.7   14.2  127.7   14.1  128.0 Analysis Plot     
     20180808 042235   -2.4      N/A   N/A  166.65    2.45  45.0 SSMI17  14.2  127.8   14.2  127.8   14.2  128.0 Analysis Plot     
     20180808 134130   -0.2      N/A  38.4%  66.66     .24  40.0 SSMI16  14.3  129.0   14.3  129.0   13.8  128.6 Analysis Plot     
     20180808 151210 -930.0      N/A   N/A     N/A    0.00  40.0 SSMI18  14.4  129.2   14.4  129.2   13.7  129.2 Analysis Plot     
     20180808 162550   -0.5      N/A  32.9%  33.33     .47  40.0 SSMI17  14.4  129.4   14.4  129.4   14.0  129.0 Analysis Plot     
     20180809 073834   -7.9      N/A  19.2%  99.99    7.89  40.0    GMI  15.7  130.2   15.7  130.2   15.5  129.7 Analysis Plot     
     20180809 161307    2.0      N/A   6.8% 122.21    2.01  55.0 SSMI17  16.1  130.3   16.1  130.3   16.3  129.9 Analysis Plot     
     20180809 213923   14.4      N/A  19.2%  55.55   14.37  55.0  AMSR2  16.9  130.1   16.8  129.9   16.8  129.9 Analysis Plot     
     20180810 005438    4.1      N/A   5.5%  55.55    4.12  55.0 SSMI16  17.2  130.0   17.2  130.0   17.2  130.1 Analysis Plot     
     20180810 042207   11.0      N/A  46.6%  33.33   11.00  55.0 SSMI18  17.5  129.9   17.5  129.9   17.4  130.0 Analysis Plot     
     20180810 122253    N/A      N/A   N/A     N/A     N/A  60.0 SSMI15  18.7  129.8   18.7  129.8   18.8  129.8 Analysis Plot     
     20180810 160019 -930.0      N/A   N/A     N/A    0.00  60.0 SSMI17  18.9  129.8   18.9  129.8   18.7  129.8 Analysis Plot     
     20180810 181148    3.5      N/A   2.9%  44.44    3.53  60.0    GMI  19.3  129.8   19.3  129.8   19.5  129.9 Analysis Plot     
     20180811 004207    N/A      N/A   N/A     N/A     N/A  60.0 SSMI16  19.9  129.9   19.9  129.9   20.1  129.8 Analysis Plot     
     20180811 040941    1.1      N/A  27.4%  88.88    1.10  55.0 SSMI18  20.5  130.1   20.5  130.1   20.2  130.1 Analysis Plot     
     20180811 073022    7.9      N/A  11.0% 122.21    7.90  55.0    GMI  20.8  130.2   20.8  130.2   20.8  130.6 Analysis Plot     
     20180811 103249   -6.3      N/A   N/A  133.32    6.26  40.0  AMSR2  21.1  130.5   21.1  130.5   21.3  130.9 Analysis Plot     
     20180811 114142   -4.1      N/A   N/A  144.43    4.14  40.0 SSMI15  21.2  130.5   21.2  130.5   21.3  130.7 Analysis Plot     
     20180811 143402   -0.8      N/A   N/A  133.32     .75  30.0 SSMI16  21.4  130.9   21.4  130.9   21.4  131.0 Analysis Plot     
     20180811 161338   -2.2      N/A   N/A  166.65    2.22  30.0 SSMI18  21.4  131.0   21.4  131.0   21.6  131.2 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.