Tropical Depression 01E

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              
     20170509 215100   -3.2      N/A  41.1% 177.76    3.21  30.0 SSMI16   9.3   91.2    9.3   91.2    9.8   91.5 Analysis Plot     
     20170509 235900 -930.0      N/A   N/A     N/A    0.00  30.0 SSMI18   9.4   91.4    9.4   91.4    8.7   90.7 Analysis Plot     
     20170510 010000 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17   9.4   92.1    9.4   92.1   10.6   92.2 Analysis Plot     
     20170510 010000 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI17   9.5   92.2   10.6   92.2   10.6   92.2 Analysis Plot     
     20170510 091010   -5.5      N/A  24.7% 122.21    5.47  35.0 SSMI15  10.0   92.7   10.0   92.7   10.8   92.3 Analysis Plot     
     20170510 114400 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  10.1   92.8   10.1   92.8    9.7   93.8 Analysis Plot     
     20170510 123600   -4.6      N/A   N/A   77.77    4.60  40.0 SSMI18  10.2   92.6   10.2   92.6    9.8   93.4 Analysis Plot     
     20170510 183527   -4.1      N/A   N/A   22.22    4.09  40.0    GMI  10.6   92.9   10.6   92.9   10.2   93.1 Analysis Plot     
     20170510 213800 -930.0      N/A   N/A     N/A    0.00  35.0 SSMI16  10.4   92.6   10.4   92.6    9.9   92.4 Analysis Plot     
     20170511 004600   -1.0      N/A   N/A   22.22    1.02  35.0 SSMI17  10.7   92.9   10.7   92.9   10.4   93.4 Analysis Plot     
     20170511 004500   -0.9      N/A   N/A   22.22     .92  30.0 SSMI17  10.4   93.0   10.4   93.0   10.4   93.4 Analysis Plot     
     20170511 085456 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI15  10.9   93.5   10.9   93.5   10.1   92.8 Analysis Plot     
     20170511 122500   -3.4      N/A   N/A  188.87    3.37  25.0 SSMI18  11.2   93.7   11.2   93.7   11.3   93.4 Analysis Plot     
     20170512 003300   -0.9      N/A   N/A   22.22     .95  25.0 SSMI17  11.8   94.5   11.8   94.5   12.7   94.1 Analysis Plot     
     20170512 003300   -1.0      N/A   N/A   33.33    1.01  25.0 SSMI17  11.9   94.6   11.9   94.6   12.7   94.1 Analysis Plot     
     20170512 011600 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI18  11.9   94.7   11.9   94.7   13.0   94.9 Analysis Plot     
     20170512 051140   -0.0      N/A   N/A     N/A    0.00  25.0    GMI  12.1   94.9   12.1   94.9   11.4   95.3 Analysis Plot     
     20170512 111800 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI16  12.4   95.3   12.4   95.3   12.4   95.4 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.