Tropical Depression 02W

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              
     20180209 031123 -930.0      N/A   N/A     N/A    0.00  25.0  AMSR2  10.9 -146.8   10.9 -146.8   11.6 -146.7 Analysis Plot     
     20180209 090400   -0.7      N/A   N/A   44.44     .75  30.0 SSMI17  10.3 -145.5   10.3 -145.5   11.0 -145.7 Analysis Plot     
     20180210 065500   -6.5      N/A   N/A   88.88    6.53  25.0 SSMI16   8.5 -142.1    8.5 -142.1    8.1 -142.1 Analysis Plot     
     20180210 085100   -0.0      N/A   N/A     N/A    0.00  25.0 SSMI17   7.7 -140.8    7.7 -140.8    7.4 -140.8 Analysis Plot     
     20180210 161016 -930.0      N/A   N/A     N/A    0.00  30.0  AMSR2   6.7 -138.5    6.7 -138.5    6.6 -139.5 Analysis Plot     
     20180210 182314 -930.0      N/A   N/A     N/A    0.00  30.0    GMI   6.6 -138.0    6.6 -138.0    6.5 -138.6 Analysis Plot     
     20180210 183110 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI15   6.6 -137.2    6.6 -137.2    7.0 -138.5 Analysis Plot     
     20180210 202300 -930.0      N/A   N/A     N/A    0.00  45.0 SSMI16   6.6 -137.0    5.9 -137.6    5.9 -137.6 Analysis Plot     
     20180211 043531   -4.0      N/A   5.5% 166.65    4.05  35.0  AMSR2   6.8 -136.5    6.8 -136.5    6.9 -136.4 Analysis Plot     
     20180211 055351   -4.0      N/A   9.6% 166.65    3.97  35.0    GMI   6.8 -136.1    6.8 -136.1    6.7 -136.0 Analysis Plot     
     20180211 064300   -1.2      N/A  12.3% 166.65    1.22  35.0 SSMI16   6.8 -136.1    6.8 -136.1    6.6 -135.9 Analysis Plot     
     20180211 165306 -930.0      N/A   N/A     N/A    0.00  35.0  AMSR2   7.3 -132.9    7.3 -132.9    8.8 -133.1 Analysis Plot     
     20180211 181521   -8.5      N/A   N/A  222.20    8.48  35.0 SSMI15   7.4 -132.7    7.4 -132.7    6.9 -132.5 Analysis Plot     
     20180211 205400   -1.4      N/A  11.3% 188.87    1.45  35.0 SSMI18   7.5 -132.5    7.5 -132.5    7.0 -132.7 Analysis Plot     
     20180212 094100  -20.8      N/A 100.0%  33.33    5.85  35.0 SSMI18   7.1 -129.9    7.1 -129.9    7.2 -129.3 Analysis Plot     
     20180212 181315   -4.3      N/A   N/A   22.22    4.32  35.0    GMI   7.8 -127.6    7.8 -127.6    7.3 -127.9 Analysis Plot     
     20180213 054228   -1.2      N/A  11.0% 111.10    1.20  35.0    GMI  10.0 -124.4   10.0 -124.4    9.6 -124.9 Analysis Plot     
     20180213 075700   -6.9      N/A  32.9%  77.77    6.94  35.0 SSMI16   9.6 -124.7    9.6 -124.7    9.5 -124.1 Analysis Plot     
     20180213 212500 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI16   8.4 -121.6    8.4 -121.6    8.3 -121.7 Analysis Plot     
     20180214 050732 -930.0      N/A   N/A     N/A    0.00  25.0  AMSR2   7.4 -119.1    7.4 -119.1    7.6 -119.9 Analysis Plot     
     20180214 075500 -930.0      N/A   N/A     N/A    0.00  25.0 SSMI16   6.7 -119.4    6.7 -119.4    6.5 -119.8 Analysis Plot     
     20180214 180158   -3.8      N/A   N/A  199.98    3.81  25.0    GMI   7.0 -118.6    7.0 -118.6    7.2 -119.7 Analysis Plot     
     20180214 201400   -7.9      N/A   6.3% 244.42    7.85  25.0 SSMI16   7.3 -119.3    7.3 -119.3    7.9 -119.6 Analysis Plot     
     20180215 053247   -2.9      N/A   N/A   33.33    2.93  25.0    GMI   8.0 -118.9    8.0 -118.9    8.5 -119.0 Analysis Plot     
     20180215 055010   -3.4      N/A   N/A   11.11    3.43  25.0  AMSR2   7.9 -118.9    7.9 -118.9    8.5 -119.0 Analysis Plot     
     20180215 180704 -930.0      N/A   N/A     N/A    0.00  20.0  AMSR2   9.4 -117.9    9.4 -117.9    9.5 -119.3 Analysis Plot     
     20180215 204900   -7.2      N/A  12.3% 111.10    7.24  20.0 SSMI16   9.4 -117.8    9.4 -117.8   10.6 -117.3 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.