Tropical Depression 02E

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              
     20180606 090812   -1.5      N/A   8.2% 188.87    1.54  35.0  AMSR2  14.1  106.6   14.1  106.6   14.1  106.7 Analysis Plot     
     20180606 120600   -1.9      N/A  19.2% 222.20    1.92  35.0 SSMI16  14.1  106.7   14.1  106.7   14.2  107.1 Analysis Plot     
     20180606 121339   -3.8      N/A  20.5% 111.10    3.77  35.0    GMI  14.1  106.8   14.1  106.8   14.9  107.0 Analysis Plot     
     20180607 150600    4.7      N/A  41.1%  66.66    4.70  55.0 SSMI16  14.9  109.2   14.9  109.2   15.0  109.3 Analysis Plot     
     20180607 204202   44.8  >65 kts 100.0%  44.44   29.81  65.0  AMSR2  15.3  109.9   15.4  109.8   15.4  109.8 Analysis Plot     
     20180607 233000   46.7  >65 kts 100.0%  22.22   31.69  65.0 SSMI16  15.3  110.1   15.3  110.1   15.3  110.1 Analysis Plot     
     20180608 085511   70.0  >85 kts 100.0%  33.33   55.00 105.0  AMSR2  15.8  110.7   15.8  110.7   15.8  110.7 Analysis Plot     
     20180608 102207   57.1  >65 kts 100.0%  33.33   42.06 105.0 SSMI15  15.9  110.8   15.9  110.8   15.9  110.8 Analysis Plot     
     20180608 142700   55.5  >65 kts 100.0%  22.22   40.51 120.0 SSMI16  15.8  111.1   15.8  111.1   15.8  111.1 Analysis Plot     
     20180608 151400   58.7  >65 kts 100.0%  22.22   43.71 120.0 SSMI16  15.8  111.1   15.8  111.1   15.8  111.1 Analysis Plot     
     20180608 231700   32.4  >65 kts 100.0%  22.22   17.38 120.0 SSMI16  16.0  111.8   15.9  111.9   15.9  111.9 Analysis Plot     
     20180609 203108    3.2      N/A   N/A  155.54    3.20  70.0  AMSR2  16.1  113.8   16.1  113.8   15.9  113.8 Analysis Plot     
     20180609 230400    1.0      N/A   N/A   22.22    1.05  70.0 SSMI16  16.1  113.9   16.1  113.9   16.0  113.9 Analysis Plot     
     20180610 023100    1.3      N/A   N/A   44.44    1.31  55.0 SSMI16  15.9  114.1   15.9  114.1   15.9  114.1 Analysis Plot     
     20180610 211319    N/A      N/A   N/A     N/A     N/A  40.0  AMSR2  16.6  115.7   16.6  115.7   16.6  115.7 Analysis Plot     
     20180611 015400   -3.2      N/A  13.7% 155.54    3.22  40.0 SSMI16  16.8  115.9   16.8  115.9   16.5  115.9 Analysis Plot     
     20180611 111135   -2.0      N/A   N/A   55.55    2.02  35.0 SSMI15  17.0  117.0   17.0  117.0   17.5  117.6 Analysis Plot     
     20180611 150700   -2.8      N/A   N/A   55.55    2.82  30.0 SSMI16  16.8  117.7   16.8  117.7   17.0  118.1 Analysis Plot     
     20180611 155100   -1.6      N/A   N/A   33.33    1.63  30.0 SSMI16  16.8  117.7   16.8  117.7   17.0  118.1 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.