Tropical Storm 06W

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              
     20180608 231300   -0.1      N/A  11.0% 166.65     .12  40.0 SSMI16  21.3 -127.2   21.3 -127.2   21.2 -126.5 Analysis Plot     
     20180609 080413   -2.9      N/A  20.3% 222.20    2.90  40.0 SSMI15  22.0 -128.0   22.0 -128.0   21.4 -127.0 Analysis Plot     
     20180609 091700 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  22.7 -127.8   22.7 -127.8   23.0 -127.7 Analysis Plot     
     20180609 094200 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  22.8 -127.9   22.8 -127.9   23.0 -127.8 Analysis Plot     
     20180609 223500 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI16  24.3 -129.9   24.3 -129.9   24.3 -129.4 Analysis Plot     
     20180610 044718    N/A      N/A   N/A     N/A     N/A  60.0  AMSR2  26.0 -132.1   26.0 -132.1   26.0 -132.1 Analysis Plot     
     20180610 090400    N/A      N/A   N/A     N/A     N/A  60.0 SSMI16  26.7 -132.6   26.7 -132.6   26.6 -133.4 Analysis Plot     
     20180610 092700    5.5      N/A   N/A   22.22    5.55  60.0 SSMI16  26.8 -132.8   26.8 -132.8   26.7 -133.6 Analysis Plot     
     20180610 181740 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI15  29.4 -136.6   29.4 -136.6   28.8 -136.8 Analysis Plot     
     20180610 222200 -930.0      N/A   N/A     N/A    0.00  50.0 SSMI16  29.6 -137.9   29.6 -137.9   29.9 -137.7 Analysis Plot     
     20180611 035257   -3.5      N/A   1.4% 311.08    3.51  45.0  AMSR2  31.5 -140.4   31.5 -140.4   31.7 -140.5 Analysis Plot     
     20180611 054600   -3.6      N/A   1.6% 288.86    3.64  45.0 SSMI16  31.8 -140.8   31.8 -140.8   31.9 -141.7 Analysis Plot     
     20180611 085200 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  32.9 -142.1   32.9 -142.1   33.3 -143.4 Analysis Plot     
     20180611 091600 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  33.0 -142.3   33.0 -142.3   32.6 -143.3 Analysis Plot     
     20180611 170731 -930.0      N/A   N/A     N/A    0.00  45.0    GMI  36.3 -146.7   36.3 -146.7   37.3 -145.6 Analysis Plot     
     20180611 190600 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16  36.4 -147.0   36.4 -147.0   36.2 -148.1 Analysis Plot     
     20180611 191330   -3.8      N/A   8.2% 244.42    3.81  45.0 SSMI15  36.8 -147.6   36.8 -147.6   36.0 -147.7 Analysis Plot     
     20180611 211900    N/A      N/A   N/A     N/A     N/A  45.0 SSMI18  37.2 -148.3   37.2 -148.3   37.1 -148.9 Analysis Plot     
     20180611 223300    N/A      N/A   N/A     N/A     N/A  45.0 SSMI17  37.3 -148.4   37.3 -148.4   37.3 -149.1 Analysis Plot     
     20180612 063452 -930.0      N/A   N/A     N/A    0.00  45.0    GMI  39.5 -152.8   39.5 -152.8   40.2 -154.5 Analysis Plot     
     20180612 065800 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI18  39.2 -152.0   39.2 -152.0   39.4 -153.6 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.