Tropical Storm 14S

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              
     20200206 091425   -1.7      N/A  30.1%  77.77    1.74  45.0 SSMI16 -17.2 -119.2  -17.2 -119.2  -17.7 -118.9 Analysis Plot     
     20200206 095454   -6.6      N/A   9.6%  77.77    6.61  45.0 SSMI15 -17.2 -119.3  -17.2 -119.3  -17.6 -119.1 Analysis Plot     
     20200206 193813   34.9  >65 kts  98.6%  33.33   19.87  55.0 SSMI15 -17.7 -117.3  -17.5 -117.5  -17.5 -117.5 Analysis Plot     
     20200206 204936   35.5  >65 kts 100.0%  33.33   20.47  55.0 SSMI16 -17.8 -117.3  -17.4 -117.7  -17.4 -117.7 Analysis Plot     
     20200206 215025   13.3      N/A  27.4%  44.44   13.27  55.0 SSMI18 -17.8 -117.2  -17.7 -117.5  -17.7 -117.5 Analysis Plot     
     20200207 090112   11.4      N/A  57.5%  11.11   11.44  65.0 SSMI16 -18.3 -116.9  -18.3 -116.9  -18.3 -116.9 Analysis Plot     
     20200207 102203    4.0      N/A  31.5%  22.22    3.97  65.0 SSMI18 -18.5 -116.9  -18.5 -116.8  -18.5 -116.8 Analysis Plot     
     20200207 114139 -930.0      N/A   N/A     N/A    0.00  65.0    GMI -18.6 -116.8  -19.2 -117.1  -19.2 -117.1 Analysis Plot     
     20200207 190823 -930.0      N/A   N/A     N/A    0.00  75.0 SSMI15 -19.3 -116.8  -19.3 -116.8  -19.1 -117.4 Analysis Plot     
     20200207 202731   48.0  >65 kts 100.0%  55.55   32.96  85.0 SSMI16 -19.3 -116.6  -19.1 -116.7  -19.1 -116.7 Analysis Plot     
     20200207 215955   45.6  >65 kts 100.0%  66.66   30.56  85.0 SSMI18 -19.4 -116.5  -19.3 -116.4  -19.3 -116.4 Analysis Plot     
     20200208 061522   57.7  >65 kts 100.0%  44.44   42.66  90.0  AMSR2 -20.6 -116.6  -20.5 -116.7  -20.5 -116.7 Analysis Plot     
     20200208 084810   61.2  >85 kts 100.0%  44.44   46.22  95.0 SSMI16 -20.6 -116.7  -20.9 -116.8  -20.9 -116.8 Analysis Plot     
     20200208 100923   65.6  >85 kts 100.0%  33.33   50.61  95.0 SSMI18 -20.8 -116.7  -21.1 -116.8  -21.1 -116.8 Analysis Plot     
     20200208 171024    N/A      N/A   N/A     N/A     N/A  85.0  AMSR2 -22.0 -117.1  -22.3 -117.6  -22.3 -117.6 Analysis Plot     
     20200208 214702    3.1      N/A  13.7% 222.20    3.06  85.0 SSMI18 -22.5 -117.3  -22.6 -117.9  -22.6 -117.9 Analysis Plot     
     20200209 083518    N/A      N/A   N/A     N/A     N/A  85.0 SSMI16 -23.5 -117.7  -23.5 -117.7  -24.1 -118.1 Analysis Plot     
     20200209 095646    0.8      N/A   8.2%  22.22     .76  85.0 SSMI18 -23.6 -117.8  -23.6 -117.8  -24.4 -118.2 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.