Tropical Depression 08E


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              
     20220727 152010    N/A      N/A   N/A     N/A     N/A  30.0 SSMI17  16.3  114.7   16.3  114.7   16.5  114.5 Analysis Plot     
     20220727 205124   -4.5      N/A  32.9%  55.55    4.47  35.0  AMSR2  16.5  115.8   16.5  115.8   16.3  115.6 Analysis Plot     
     20220728 000639   -1.2      N/A   N/A   33.33    1.21  35.0 SSMI16  16.5  116.3   16.5  116.3   16.3  116.0 Analysis Plot     
     20220728 005450   -2.2      N/A  27.4%  44.44    2.19  35.0 SSMI18  16.4  116.4   16.4  116.4   16.2  116.1 Analysis Plot     
     20220728 090501   -1.0      N/A  49.2%  55.55    1.00  45.0  AMSR2  15.8  117.6   15.8  117.6   16.1  117.8 Analysis Plot     
     20220728 131824    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18  15.6  117.9   15.6  117.9   16.0  118.5 Analysis Plot     
     20220728 135733    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16  15.6  118.0   15.6  118.0   16.2  118.3 Analysis Plot     
     20220728 213401   -4.2      N/A   1.4%  77.77    4.16  45.0  AMSR2  15.6  120.1   15.6  120.1   16.2  119.9 Analysis Plot     
     20220729 024515    N/A      N/A   N/A     N/A     N/A  45.0 SSMI17  15.5  120.6   15.5  120.6   15.4  121.2 Analysis Plot     
     20220729 094706   -8.8      N/A  20.5%  55.55    8.84  45.0  AMSR2  15.2  122.0   15.2  122.0   15.4  122.4 Analysis Plot     
     20220729 163343   -2.3      N/A   9.6%  55.55    2.26  50.0 SSMI17  15.1  123.1   15.1  123.1   15.2  123.4 Analysis Plot     
     20220730 002719   -1.0      N/A   4.1%  44.44    1.02  45.0 SSMI18  14.6  124.4   14.6  124.4   14.7  125.0 Analysis Plot     
     20220730 011958   -2.9      N/A   N/A   44.44    2.89  45.0 SSMI16  14.5  124.5   14.5  124.5   14.4  124.8 Analysis Plot     
     20220730 020443   -1.0      N/A   N/A   33.33    1.04  45.0 SSMI18  14.5  124.6   14.5  124.6   14.6  125.0 Analysis Plot     
     20220730 023133   -2.8      N/A  24.7%  55.55    2.82  45.0 SSMI17  14.4  124.7   14.4  124.7   14.4  125.0 Analysis Plot     
     20220730 103114   -5.4      N/A   4.3% 144.43    5.37  45.0  AMSR2  14.1  126.2   14.1  126.2   14.5  126.2 Analysis Plot     
     20220730 150309   -2.8      N/A   2.7%  66.66    2.83  45.0 SSMI16  14.0  126.7   14.0  126.7   13.9  126.8 Analysis Plot     
     20220730 162018   -2.9      N/A  13.7%  99.99    2.85  45.0 SSMI17  14.0  126.9   14.0  126.9   13.9  127.0 Analysis Plot     
     20220731 001434   -5.2      N/A   N/A  199.98    5.20  45.0 SSMI18  13.5  128.0   13.5  128.0   13.1  127.9 Analysis Plot     
     20220731 010643   -1.6      N/A   N/A   22.22    1.63  45.0 SSMI16  13.5  128.1   13.5  128.1   13.4  128.1 Analysis Plot     
     20220731 015229   -4.6      N/A   N/A   77.77    4.64  45.0 SSMI18  13.5  128.2   13.5  128.2   13.4  128.6 Analysis Plot     
     20220731 135627   -1.8      N/A   N/A   88.88    1.84  40.0 SSMI18  13.2  129.7   13.2  129.7   12.9  129.9 Analysis Plot     
     20220731 145916   -2.5      N/A   2.7%  99.99    2.50  35.0 SSMI16  13.1  129.6   13.1  129.6   13.1  129.8 Analysis Plot     
     20220731 160654 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  13.1  129.7   13.1  129.7   12.7  129.6 Analysis Plot     
     20220731 220407  -11.8      N/A   N/A  199.98   11.84  30.0  AMSR2  12.7  130.1   12.7  130.1   12.4  130.0 Analysis Plot     
     20220801 101839   -3.0      N/A   N/A   66.66    2.98  30.0  AMSR2  12.9  130.2   12.9  130.2   13.1  130.1 Analysis Plot     
     20220801 134156   -2.6      N/A  16.4% 111.10    2.60  30.0 SSMI18  12.9  130.2   12.9  130.2   13.1  130.3 Analysis Plot     
     20220801 144614   -2.6      N/A  17.8%  66.66    2.57  30.0 SSMI16  13.0  130.2   13.0  130.2   13.3  130.3 Analysis Plot     
     20220802 032414    N/A      N/A   N/A     N/A     N/A  30.0 SSMI17  13.5  131.2   13.5  131.2   13.7  131.1 Analysis Plot     
     20220802 050003    N/A      N/A   N/A     N/A     N/A  30.0 SSMI17  13.6  131.2   13.6  131.2   13.7  131.1 Analysis Plot     
     20220802 133107 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  14.0  130.7   14.0  130.7   14.1  130.3 Analysis Plot     
     20220802 215236   -9.2      N/A  11.0%  77.77    9.21  30.0  AMSR2  14.7  130.3   14.7  130.3   15.0  130.5 Analysis Plot     
     20220803 014059 -930.0      N/A   N/A     N/A    0.00  30.0    GMI  15.1  130.0   15.1  130.0   15.4  130.6 Analysis Plot     
     20220803 031057   -2.6      N/A   5.5% 111.10    2.62  30.0 SSMI17  15.2  130.0   15.2  130.0   15.5  130.1 Analysis Plot     
     20220803 044638   -2.6      N/A   5.5% 111.10    2.60  30.0 SSMI17  15.4  130.0   15.4  130.0   15.5  130.1 Analysis Plot     
     20220803 100541   -7.8      N/A   6.8% 144.43    7.77  30.0  AMSR2  16.3  129.5   16.3  129.5   16.5  129.4 Analysis Plot     
     20220803 170719    N/A      N/A   N/A     N/A     N/A  30.0 SSMI17  16.9  129.2   16.9  129.2   17.0  129.3 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.