Tropical Depression 01W

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              
     20150113 173826   -2.2      N/A   9.6% 211.09    2.21  25.0 SSMI15   9.3 -140.7    9.3 -140.7    9.1 -141.0 Analysis Plot     
     20150113 225500 -930.0      N/A   N/A  244.42  1275.1  25.0 SSMI18   9.8 -139.7    9.8 -139.7    9.8 -140.1 Analysis Plot     
     20150114 100300   -3.8      N/A   8.2% 233.31    3.76  30.0 SSMI18  10.6 -137.8   10.6 -137.8   10.8 -137.8 Analysis Plot     
     20150114 192954 -930.0      N/A   N/A  277.75  1283.8  30.0   TRMM  11.3 -135.6   11.3 -135.6   11.3 -135.4 Analysis Plot     
     20150114 201000 -930.0      N/A   N/A  211.09  1272.7  30.0 SSMI16  11.4 -135.4   11.4 -135.4   11.9 -135.5 Analysis Plot     
     20150115 051522   -2.4      N/A  12.3% 122.21    2.38  35.0   TRMM  11.7 -133.4   11.7 -133.4   11.9 -133.7 Analysis Plot     
     20150115 092500 -930.0      N/A   N/A  255.53  1276.8  35.0 SSMI17  11.8 -132.9   11.8 -132.9   11.8 -133.4 Analysis Plot     
     20150115 195803 -930.0      N/A   N/A  299.97  1252.0  35.0   TRMM  11.6 -131.7   11.6 -131.7   10.9 -132.5 Analysis Plot     
     20150115 223000 -930.0      N/A   N/A  199.98  1276.7  35.0 SSMI18  11.6 -131.1   11.6 -131.1   11.4 -131.4 Analysis Plot     
     20150116 054305 -930.0      N/A   N/A   33.33  1250.8  40.0   TRMM  11.6 -130.3   11.6 -129.3   11.6 -129.3 Analysis Plot     
     20150116 091200 -930.0      N/A   N/A  333.30  1273.2  40.0 SSMI17  11.5 -129.3   11.5 -129.3   12.2 -130.1 Analysis Plot     
     20150116 112100   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI18  11.6 -128.6   11.6 -128.6   11.7 -128.5 Analysis Plot     
     20150116 194400   35.1  >65 kts 100.0%  66.66   20.11  65.0 SSMI16  11.0 -127.2   11.3 -127.4   11.3 -127.4 Analysis Plot     
     20150116 215000   35.9  >65 kts 100.0%  88.88   20.86  65.0 SSMI17  11.0 -126.8   11.5 -127.1   11.5 -127.1 Analysis Plot     
     20150117 083500 -930.0      N/A   N/A  155.54  1276.3  70.0 SSMI16  12.1 -125.5   12.1 -125.5   12.2 -125.5 Analysis Plot     
     20150117 110800    9.1      N/A  67.1%  77.77    9.07  55.0 SSMI18  12.6 -125.0   12.6 -125.0   12.3 -125.1 Analysis Plot     
     20150117 191730  -10.7      N/A  23.3%  88.88   10.72  45.0   TRMM  13.4 -123.8   13.4 -123.8   12.9 -124.2 Analysis Plot     
     20150117 213700   -5.4      N/A  16.4%  77.77    5.37  45.0 SSMI17  13.6 -123.4   13.6 -123.4   13.3 -124.2 Analysis Plot     
     20150118 082100   -3.1      N/A  12.3% 177.76    3.10  35.0 SSMI16  14.1 -122.4   14.1 -122.4   14.3 -123.0 Analysis Plot     
     20150118 205700 -930.0      N/A   N/A  333.30  1277.1  25.0 SSMI16  16.4 -121.6   16.4 -121.6   15.9 -122.1 Analysis Plot     
     20150118 233200   -3.3      N/A   N/A  255.53    3.33  25.0 SSMI18  16.6 -121.5   16.6 -121.5   16.9 -121.7 Analysis Plot     
     20150119 035344   -1.9      N/A   N/A  133.32    1.88  25.0   TRMM  16.6 -123.1   16.6 -123.1   16.7 -123.1 Analysis Plot     
     20150119 080800 -930.0      N/A   N/A  333.30  1280.2  25.0 SSMI16  17.1 -123.2   17.1 -123.2   17.2 -122.9 Analysis Plot     
     20150119 104600 -930.0      N/A   N/A  333.30  1281.6  25.0 SSMI18  17.4 -123.3   17.4 -123.3   17.0 -123.3 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.