Tropical Storm 17S

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.1.4 (experimental)


         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20130224 202749    3.8      N/A  31.5% 266.64    3.83  60.0 SSMI15 -17.8 -118.3  -17.8 -118.3  -17.9 -118.7 Analysis Plot     
     20130224 215300    3.6      N/A  43.8% 211.09    3.61  60.0 SSMI17 -17.8 -118.3  -17.8 -118.3  -17.6 -118.5 Analysis Plot     
     20130224 233831    5.7      N/A  30.1% 244.42    5.75  60.0   TRMM -17.9 -118.3  -17.9 -118.3  -17.6 -118.8 Analysis Plot     
     20130225 100757   15.0      N/A   N/A     N/A   13.08  65.0 SSMI15 -18.3 -119.0  -19.0 -119.0  -19.0 -119.0 Analysis Plot     
     20130225 102800   45.7  >65 kts 100.0% 222.20   30.71  65.0 SSMI17 -18.5 -119.0  -18.1 -119.4  -18.1 -119.4 Analysis Plot     
     20130225 121200   48.3  >65 kts 100.0% 188.87   33.27  65.0 SSMI18 -18.6 -119.0  -18.3 -119.3  -18.3 -119.3 Analysis Plot     
     20130225 192454   15.0      N/A   N/A     N/A   15.10  65.0 SSMI15 -19.1 -119.1  -19.1 -119.1  -20.0 -119.0 Analysis Plot     
     20130225 214100   37.7  >65 kts 100.0% 199.98   22.66  75.0 SSMI17 -18.9 -119.4  -19.0 -119.1  -19.0 -119.1 Analysis Plot     
     20130225 232600   21.4  >65 kts  61.6% 177.76   21.36  75.0 SSMI18 -19.0 -119.4  -19.1 -119.2  -19.1 -119.2 Analysis Plot     
     20130226 065408   22.4  >65 kts  58.9% 133.32   22.44  65.0   TRMM -19.4 -119.2  -19.3 -119.2  -19.3 -119.2 Analysis Plot     
     20130226 094930   61.8  >85 kts 100.0% 133.32   46.85  65.0 SSMI15 -19.5 -119.2  -19.3 -119.1  -19.3 -119.1 Analysis Plot     
     20130226 101400   71.1  >85 kts 100.0% 155.54   56.12  65.0 SSMI17 -19.5 -119.2  -19.2 -119.1  -19.2 -119.1 Analysis Plot     
     20130226 115900   44.5  >65 kts 100.0% 166.65   29.50  65.0 SSMI18 -19.6 -119.2  -19.2 -119.1  -19.2 -119.1 Analysis Plot     
     20130226 201756   48.9  >65 kts 100.0%  99.99   33.86  95.0 SSMI15 -19.3 -119.1  -19.4 -119.0  -19.4 -119.0 Analysis Plot     
     20130226 212800   67.1  >85 kts 100.0% 111.10   52.10  95.0 SSMI17 -19.4 -119.1  -19.3 -119.1  -19.3 -119.1 Analysis Plot     
     20130226 214600   69.9  >85 kts 100.0% 111.10   54.94  95.0 SSMI16 -19.4 -119.1  -19.4 -119.2  -19.4 -119.2 Analysis Plot     
     20130227 055842   19.8      N/A  63.0%  88.88   19.84  95.0   TRMM -19.6 -119.1  -19.7 -119.6  -19.7 -119.6 Analysis Plot     
     20130227 090827   10.2      N/A  42.5% 111.10   10.16  80.0 SSMI15 -19.8 -119.5  -19.9 -119.6  -19.9 -119.6 Analysis Plot     
     20130227 100100    5.5      N/A  32.9% 111.10    5.45  80.0 SSMI17 -20.1 -119.5  -20.1 -119.7  -20.1 -119.7 Analysis Plot     
     20130227 114700   15.0      N/A   N/A     N/A    1.24  80.0 SSMI18 -20.2 -119.6  -20.2 -119.7  -20.2 -119.7 Analysis Plot     
     20130227 195435    0.1      N/A   4.1% 199.98     .10  75.0 SSMI15 -21.0 -119.8  -21.0 -119.8  -21.5 -120.5 Analysis Plot     
     20130227 211600    N/A      N/A   N/A     N/A     N/A  75.0 SSMI17 -21.2 -119.9  -21.2 -119.9  -21.4 -120.4 Analysis Plot     
     20130227 213200    0.3      N/A   2.7% 199.98     .31  75.0 SSMI16 -21.3 -119.9  -21.3 -119.9  -21.6 -120.5 Analysis Plot     
     20130227 223008    1.6      N/A   N/A  199.98    1.60  75.0   TRMM -21.3 -119.9  -21.3 -119.9  -21.6 -120.5 Analysis Plot     
     20130228 050324    1.0      N/A   N/A  199.98    1.01  75.0   TRMM -21.9 -120.2  -21.9 -120.2  -21.9 -120.2 Analysis Plot     
     20130228 085133    1.1      N/A   N/A  255.53    1.11  75.0 SSMI15 -22.2 -120.4  -22.2 -120.4  -22.4 -120.2 Analysis Plot     
     20130228 100400    0.8      N/A   N/A  211.09     .82  75.0 SSMI16 -22.5 -120.6  -22.5 -120.6  -23.2 -120.6 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 <50 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; -909 is a failure to process (bad input data).