Tropical Depression 14W

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.2.1


         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20150802 092200   -6.9      N/A  15.1%  77.77    6.86  30.0 SSMI18  30.0 -144.0   30.0 -144.0   29.6 -144.1 Analysis Plot     
     20150802 180904   -5.0      N/A   N/A   33.33    5.02  30.0 SSMI15  30.1 -143.3   30.1 -143.3   30.2 -143.5 Analysis Plot     
     20150802 215000   -5.9      N/A   8.2% 111.10    5.93  30.0 SSMI18  30.3 -143.1   30.3 -143.1   30.2 -143.3 Analysis Plot     
     20150803 032443   -9.9      N/A   5.5% 277.75    9.86  30.0  AMSR2  30.5 -142.9   30.5 -142.9   30.5 -142.8 Analysis Plot     
     20150803 091000   -5.0      N/A   N/A   33.33    4.98  30.0 SSMI18  30.8 -142.0   30.8 -142.0   30.4 -142.1 Analysis Plot     
     20150803 215500   -8.8      N/A   5.5% 233.31    8.80  25.0 SSMI19  31.1 -140.1   31.1 -140.1   31.2 -140.2 Analysis Plot     
     20150804 040751   -6.3      N/A   N/A  111.10    6.28  25.0  AMSR2  31.2 -139.5   31.2 -139.5   31.3 -139.6 Analysis Plot     
     20150804 090700   -6.3      N/A   N/A     N/A    0.00  25.0 SSMI17  31.4 -139.1   31.4 -139.1   31.6 -138.9 Analysis Plot     
     20150804 091500   -6.3      N/A   N/A   55.55    6.27  25.0 SSMI19  31.4 -138.9   31.4 -138.9   31.1 -138.8 Analysis Plot     
     20150804 161258   -0.6      N/A   8.2%  11.11     .56  20.0  AMSR2  31.8 -137.8   31.8 -137.8   31.7 -138.1 Analysis Plot     
     20150804 214100   -4.9      N/A   N/A  155.54    4.94  20.0 SSMI19  32.0 -137.1   32.0 -137.1   32.3 -137.3 Analysis Plot     
     20150804 230500   -2.0      N/A   N/A   22.22    1.96  20.0 SSMI18  32.1 -136.9   32.1 -136.9   32.7 -137.2 Analysis Plot     
     20150805 085300   -2.2      N/A   4.1% 111.10    2.15  20.0 SSMI17  32.4 -135.7   32.4 -135.7   32.7 -136.2 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.