Tropical Depression 07S

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              
     20200115 221435   -1.1      N/A   N/A  222.20    1.06  35.0 SSMI16 -21.7 -104.5  -21.7 -104.5  -21.5 -104.4 Analysis Plot     
     20201225 012015   -2.4      N/A  37.0%  11.11    2.42  35.0 SSMI18 -15.8  -56.3  -15.8  -56.3  -16.5  -57.1 Analysis Plot     
     20201225 101630   -4.3      N/A  15.1% 211.09    4.25  35.0  AMSR2 -15.9  -55.1  -15.9  -55.1  -16.3  -55.3 Analysis Plot     
     20201225 131546    N/A      N/A   N/A     N/A     N/A  35.0 SSMI18 -15.9  -54.7  -15.9  -54.7  -17.1  -54.5 Analysis Plot     
     20201225 132622    N/A      N/A   N/A     N/A     N/A  35.0 SSMI16 -15.9  -54.7  -15.9  -54.7  -17.1  -54.5 Analysis Plot     
     20201226 130905 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16 -16.3  -51.4  -16.3  -51.4  -16.8  -51.2 Analysis Plot     
     20201226 171016 -930.0      N/A   N/A     N/A    0.00  35.0    GMI -16.4  -50.7  -17.4  -49.7  -17.4  -49.7 Analysis Plot     
     20201226 215201  -11.2      N/A  34.2% 177.76   11.16  35.0  AMSR2 -17.9  -49.0  -17.8  -49.3  -17.8  -49.3 Analysis Plot     
     20201227 015315   -1.2      N/A   N/A   55.55    1.18  35.0 SSMI15 -16.6  -49.5  -16.6  -49.5  -16.6  -48.2 Analysis Plot     
     20201227 023717   -1.9      N/A   1.4% 177.76    1.90  35.0 SSMI18 -18.0  -48.4  -18.0  -48.4  -18.5  -48.2 Analysis Plot     
     20201227 043447 -930.0      N/A   N/A     N/A    0.00  35.0    GMI -18.1  -48.0  -18.1  -48.0  -17.8  -47.5 Analysis Plot     
     20201227 100509 -930.0      N/A   N/A     N/A    0.00  25.0  AMSR2 -18.4  -47.0  -18.4  -47.0  -18.0  -47.1 Analysis Plot     
     20201227 142822   -6.9      N/A  43.8%  33.33    6.94  25.0 SSMI18 -18.6  -46.3  -18.6  -46.3  -18.5  -45.6 Analysis Plot     
     20201228 021209   -0.7      N/A   8.2% 144.43     .75  30.0 SSMI18 -19.7  -44.5  -19.7  -44.5  -19.6  -44.1 Analysis Plot     
     20201228 021812   -1.3      N/A   9.6% 133.32    1.28  30.0 SSMI16 -19.7  -44.6  -19.7  -44.6  -19.5  -44.2 Analysis Plot     
     20201228 104614   -1.1      N/A  46.6%  33.33    1.11  35.0  AMSR2 -20.1  -43.1  -20.1  -43.0  -20.1  -43.0 Analysis Plot     
     20201228 143142    N/A      N/A   N/A     N/A     N/A  35.0 SSMI18 -20.2  -42.7  -20.2  -42.7  -20.2  -43.0 Analysis Plot     
     20201228 165957    N/A      N/A   N/A     N/A     N/A  30.0    GMI -20.2  -42.5  -20.2  -42.5  -20.1  -41.9 Analysis Plot     
     20201229 014754   -9.4      N/A  56.2%  33.33    9.44  40.0 SSMI16 -19.8  -40.6  -19.7  -41.0  -19.7  -41.0 Analysis Plot     
     20201229 020000   -8.2      N/A  53.4%  33.33    8.23  40.0 SSMI18 -19.8  -40.6  -19.8  -41.0  -19.8  -41.0 Analysis Plot     
     20201229 042414   -2.5      N/A  37.0%  44.44    2.49  40.0    GMI -19.7  -40.1  -19.7  -40.1  -19.7  -39.9 Analysis Plot     
     20201229 112948  -38.2      N/A 100.0%  22.22   23.19  45.0  AMSR2 -19.6  -38.9  -19.5  -38.5  -19.5  -38.5 Analysis Plot     
     20201229 141618   -4.6      N/A  71.2%  33.33    4.59  45.0 SSMI16 -19.6  -38.5  -19.6  -38.5  -19.4  -38.2 Analysis Plot     
     20201229 174211 -930.0      N/A   N/A     N/A    0.00  45.0    GMI -19.6  -37.7  -19.6  -37.7  -18.8  -37.1 Analysis Plot     
     20201230 023310   49.7  >65 kts 100.0%  44.44   34.72  60.0 SSMI15 -19.7  -36.0  -19.2  -35.4  -19.2  -35.4 Analysis Plot     
     20201229 174211 -930.0      N/A   N/A     N/A    0.00  45.0    GMI -19.6  -37.7  -19.6  -37.7  -18.8  -37.1 Analysis Plot     
     20201230 153404    N/A      N/A   N/A     N/A     N/A  45.0 SSMI15 -19.6  -32.7  -19.6  -32.7  -19.1  -31.1 Analysis Plot     
     20201230 021713    0.2      N/A   N/A   11.11     .16  60.0 SSMI15 -19.7  -36.1  -19.7  -36.1  -19.6  -36.6 Analysis Plot     
     20201231 031333    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18 -19.8  -29.5  -19.8  -29.5  -19.8  -28.1 Analysis Plot     
     20201231 033342    N/A      N/A   N/A     N/A     N/A  45.0 SSMI16 -19.8  -29.5  -19.8  -29.5  -19.8  -28.1 Analysis Plot     
     20201231 041404   -0.1      N/A   N/A   66.66     .10  45.0    GMI -20.0  -29.0  -20.0  -29.0  -19.4  -29.0 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.