Tropical Storm 11S


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              
     20180302 141900  -18.6      N/A 100.0%  22.22    3.59  35.0 SSMI18 -12.7  -54.1  -12.7  -54.1  -12.3  -54.6 Analysis Plot     
     20180303 122700   -2.1      N/A   8.2% 122.21    2.08  45.0 SSMI16 -15.4  -52.9  -15.4  -52.9  -15.3  -52.7 Analysis Plot     
     20180303 170918   -4.3      N/A  53.4%  33.33    4.32  45.0    GMI -15.8  -51.9  -16.3  -52.6  -16.3  -52.6 Analysis Plot     
     20180303 213252   -0.0      N/A   N/A     N/A    0.00  50.0  AMSR2 -16.5  -51.8  -17.0  -51.7  -17.0  -51.7 Analysis Plot     
     20180304 030000 -930.0      N/A   N/A     N/A    0.00  65.0 SSMI18 -17.0  -51.5  -17.0  -51.5  -17.5  -51.7 Analysis Plot     
     20180304 030600    3.7      N/A  79.5%  22.22    3.65  65.0 SSMI17 -17.0  -51.5  -17.0  -51.7  -17.0  -51.7 Analysis Plot     
     20180304 094602 -930.0      N/A   N/A     N/A    0.00  70.0  AMSR2 -18.2  -51.2  -18.2  -51.2  -17.9  -50.8 Analysis Plot     
     20180304 154000   28.4  >65 kts  93.2%  44.44   13.45  80.0 SSMI17 -18.9  -50.7  -19.3  -50.6  -19.3  -50.6 Analysis Plot     
     20180304 221635   14.0      N/A  49.3%  66.66   14.02  80.0  AMSR2 -20.0  -50.6  -20.0  -50.9  -20.0  -50.9 Analysis Plot     
     20180305 024800   37.7  >65 kts 100.0%  44.44   22.72  90.0 SSMI18 -20.7  -51.1  -20.7  -51.1  -20.7  -51.1 Analysis Plot     
     20180305 053443   27.5  >65 kts  65.1%  66.66   27.52  90.0    GMI -21.0  -51.2  -21.0  -51.3  -21.0  -51.3 Analysis Plot     
     20180305 102635   45.6  >65 kts 100.0%  55.55   30.55  90.0  AMSR2 -21.5  -51.4  -21.9  -51.4  -21.9  -51.4 Analysis Plot     
     20180305 152000   18.1      N/A  56.2%  33.33   18.14 105.0 SSMI18 -22.5  -52.0  -22.7  -51.9  -22.7  -51.9 Analysis Plot     
     20180305 212239   15.0      N/A  38.4%  44.44   14.99 100.0  AMSR2 -23.4  -52.6  -23.1  -52.5  -23.1  -52.5 Analysis Plot     
     20180306 011700   -0.0      N/A   N/A     N/A    0.00 100.0 SSMI16 -23.6  -52.8  -23.9  -53.2  -23.9  -53.2 Analysis Plot     
     20180306 024100    9.3      N/A  57.5%  99.99    9.26 100.0 SSMI17 -23.7  -53.2  -24.1  -53.3  -24.1  -53.3 Analysis Plot     
     20180306 151100    2.1      N/A  16.4% 177.76    2.06  90.0 SSMI17 -25.4  -55.1  -25.3  -54.5  -25.3  -54.5 Analysis Plot     
     20180306 220702 -930.0      N/A   N/A     N/A    0.00  70.0  AMSR2 -26.2  -55.5  -26.2  -55.5  -26.3  -55.3 Analysis Plot     
     20180307 011200    2.5      N/A   N/A  177.76    2.50  70.0 SSMI16 -26.4  -55.6  -26.4  -55.6  -26.1  -55.2 Analysis Plot     
     20180307 022800    4.6      N/A   N/A  222.20    4.58  55.0 SSMI17 -27.0  -55.9  -27.0  -55.9  -26.3  -55.5 Analysis Plot     
     20180307 052605   -0.0      N/A   N/A     N/A    0.00  55.0    GMI -27.5  -56.1  -27.5  -56.1  -26.6  -55.7 Analysis Plot     
     20180307 101238   -4.0      N/A   N/A  222.20    3.97  45.0  AMSR2 -27.5  -56.3  -27.5  -56.3  -27.5  -56.1 Analysis Plot     
     20180307 151115 -930.0      N/A   N/A     N/A    0.00  40.0    GMI -28.3  -56.6  -28.3  -56.6  -28.0  -56.5 Analysis Plot     
     20180307 211110    0.8      N/A   N/A   44.44     .82  55.0  AMSR2 -28.8  -57.4  -28.8  -57.4  -28.7  -57.4 Analysis Plot     
     20180308 005900    3.0      N/A   N/A  222.20    3.04  55.0 SSMI16 -29.0  -57.6  -29.0  -57.6  -28.9  -57.4 Analysis Plot     
     20180308 043444 -930.0      N/A   N/A     N/A    0.00  55.0    GMI -29.6  -58.4  -29.6  -58.4  -30.5  -58.8 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.