Tropical Storm 30Y_03

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              
     20220726 200245 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  15.9 -142.6   15.9 -142.6   16.4 -141.9 Analysis Plot     
     20220726 204903   -1.7      N/A   8.2% 188.87    1.71  30.0 SSMI16  15.9 -142.7   15.9 -142.7   16.4 -142.0 Analysis Plot     
     20220726 221407 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI17  15.8 -142.7   15.8 -142.7   16.1 -141.6 Analysis Plot     
     20220727 042321 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2  17.3 -141.9   17.3 -141.9   17.3 -142.4 Analysis Plot     
     20220727 195858 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18  18.3 -140.1   18.3 -140.1   18.7 -139.5 Analysis Plot     
     20220727 204824 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI16  18.5 -140.1   18.5 -140.1   18.5 -139.4 Analysis Plot     
     20220728 232631   -2.2      N/A   N/A   77.77    2.24  35.0 SSMI17  24.9 -136.6   24.9 -136.6   24.5 -136.7 Analysis Plot     
     20220729 041256   -5.2      N/A   N/A   11.11    5.22  35.0  AMSR2  27.5 -134.3   27.5 -134.3   26.9 -134.0 Analysis Plot     
     20220729 092813 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  28.5 -132.5   28.5 -132.5   27.5 -132.7 Analysis Plot     
     20220729 101512   -1.9      N/A   N/A   22.22    1.89  35.0 SSMI16  28.5 -132.4   28.5 -132.4   27.8 -132.4 Analysis Plot     
     20220729 210453   -1.7      N/A   N/A  155.54    1.68  40.0 SSMI18  30.4 -128.0   30.4 -128.0   30.6 -128.1 Analysis Plot     
     20220729 220030    N/A      N/A   N/A     N/A     N/A  40.0 SSMI16  30.5 -127.8   30.5 -127.8   30.4 -127.7 Analysis Plot     
     20220729 231321   -0.6      N/A   N/A  111.10     .63  40.0 SSMI17  30.5 -127.7   30.5 -127.7   30.6 -127.7 Analysis Plot     
     20220730 091515   -0.2      N/A   N/A  111.10     .24  35.0 SSMI18  31.7 -125.0   31.7 -125.0   32.3 -125.2 Analysis Plot     
     20220730 100201   -2.4      N/A  19.2% 199.98    2.37  35.0 SSMI16  31.8 -125.0   31.8 -125.0   32.4 -125.6 Analysis Plot     
     20220730 111016 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17  31.8 -124.9   31.8 -124.9   32.4 -124.9 Analysis Plot     
     20220730 205201 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI18  33.2 -123.4   33.2 -123.4   32.8 -123.0 Analysis Plot     
     20220730 214717 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  33.2 -123.4   33.2 -123.4   32.8 -123.4 Analysis Plot     
     20220731 090224   -3.2      N/A   N/A  266.64    3.18  35.0 SSMI18  33.7 -122.4   33.7 -122.4   33.7 -122.9 Analysis Plot     
     20220731 094849   -3.8      N/A   N/A  222.20    3.84  35.0 SSMI16  33.8 -122.3   33.8 -122.3   34.0 -123.2 Analysis Plot     
     20220731 174349   -3.3      N/A   N/A  177.76    3.32  35.0  AMSR2  34.4 -123.1   34.4 -123.1   34.9 -123.0 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.