Tropical Depression 19E

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique
Version 9.1


       --Overpass--              --ARCHER--   Ring  Ring            Eye              BT   -Forecast-  
       Date    Time      Sat     Lat    Lon   Diam   Pct  TbDiff   Score  Meaning   Vmax  Lat    Lon                 
     20231028 231142  SSMISF16    9.7  -92.1   N/A   N/A     N/A     N/A      N/A   30.0  10.6  -92.7 Analysis Plot     
     20231029 002227  SSMISF17   11.9  -93.4   N/A   N/A     N/A     N/A      N/A   30.0  10.7  -92.7 Analysis Plot     
     20231029 080243     AMSR2   10.9  -92.2    68    4%    1.52   -1.52      N/A   30.0  11.0  -93.1 Analysis Plot     
     20231029 095601  SSMISF18   11.1  -93.2   101    7%    1.11   -1.11      N/A   30.0  11.1  -93.2 Analysis Plot     
     20231029 225300       GMI   10.6  -93.3   N/A   N/A     N/A     N/A      N/A   30.0  10.9  -92.4 Analysis Plot     
     20231030 000902  SSMISF17   11.6  -92.1   N/A   N/A     N/A     N/A      N/A   30.0  10.9  -92.3 Analysis Plot     
     20231030 102115       GMI   10.8  -91.2   146   19%    0.55   -0.55      N/A   35.0  11.0  -91.7 Analysis Plot     
     20231030 113516  SSMISF16   11.2  -91.4   N/A   N/A     N/A     N/A      N/A   35.0  11.0  -91.5 Analysis Plot     
     20231030 124631  SSMISF17   11.3  -91.2    68   22%    0.65   -0.65      N/A   40.0  11.0  -91.4 Analysis Plot     
     20231030 193500     AMSR2   10.6  -91.4   N/A   N/A     N/A     N/A      N/A   45.0  11.3  -90.7 Analysis Plot     
     20231030 235553  SSMISF17   11.4  -91.1   223   10%    2.65   -2.65      N/A   45.0  11.4  -91.1 Analysis Plot     
     20231031 075021     AMSR2   11.4  -90.7    12   17%    1.52   -1.52      N/A   45.0  11.5  -90.3 Analysis Plot     
     20231031 112214  SSMISF16   11.5  -90.2   168   21%    2.02   -2.02      N/A   45.0  11.6  -90.1 Analysis Plot     
     20231031 123229  SSMISF17   11.5  -90.1   190   32%    2.02   -2.02      N/A   45.0  11.6  -90.1 Analysis Plot     
     20231031 234240  SSMISF17   11.4  -89.3   N/A   N/A     N/A     N/A      N/A   45.0  11.4  -89.3 Analysis Plot     
     20231101 121845  SSMISF17   12.5  -90.2   N/A   N/A     N/A     N/A      N/A   50.0  12.5  -90.3 Analysis Plot     
     20231101 192313     AMSR2   12.1  -91.3    46    6%    2.23   -2.23      N/A   45.0  12.5  -91.2 Analysis Plot     
     20231101 220626  SSMISF18   12.6  -91.9    57   N/A    3.49   -3.49      N/A   45.0  12.4  -92.0 Analysis Plot     
     20231101 235926  SSMISF16   12.6  -92.0    57   N/A    3.56   -3.56      N/A   45.0  12.3  -92.3 Analysis Plot     
     20231102 091806       GMI   12.2  -93.8   N/A   N/A     N/A     N/A      N/A   45.0  12.3  -94.2 Analysis Plot     
     20231102 123724  SSMISF16   12.0  -95.1   N/A   N/A     N/A     N/A      N/A   45.0  12.0  -95.4 Analysis Plot     
     20231102 200614     AMSR2   11.3  -97.1   N/A   N/A     N/A     N/A      N/A   50.0  11.6  -96.9 Analysis Plot     
     20231102 215341  SSMISF18   10.4  -98.3   N/A   N/A     N/A     N/A      N/A   50.0  11.5  -97.2 Analysis Plot     
     20231102 223221       GMI   10.5  -97.7   N/A   N/A     N/A     N/A      N/A   50.0  11.5  -97.3 Analysis Plot     
     20231102 234600  SSMISF16   10.4  -98.2   N/A   N/A     N/A     N/A      N/A   50.0  11.4  -97.7 Analysis Plot     
     20231103 005530  SSMISF17   11.3  -98.3   268   N/A    0.62   -0.62      N/A   50.0  11.3  -98.0 Analysis Plot     
     20231103 082145     AMSR2   11.3 -102.4   N/A   N/A     N/A     N/A      N/A   45.0  10.3 -101.8 Analysis Plot     
     20231103 103127  SSMISF18   10.5 -102.1    90    3%    2.41   -2.41      N/A   45.0  10.2 -102.5 Analysis Plot     
     20231103 122355  SSMISF16   10.4 -102.5   112   17%    4.27   -4.27      N/A   45.0  10.1 -103.0 Analysis Plot     
     20231103 133331  SSMISF17   10.1 -103.1   N/A   N/A     N/A     N/A      N/A   45.0  10.1 -103.2 Analysis Plot     
     20231103 204934     AMSR2   10.4 -104.8    79   14%    3.84   -3.84      N/A   40.0  10.1 -104.9 Analysis Plot     
     20231104 090517     AMSR2    9.8 -107.7   112   N/A    0.91   -0.91      N/A   40.0   9.8 -107.7 Analysis Plot     
     20231104 132031  SSMISF17    9.7 -108.9    90   28%    5.00   -5.00      N/A   40.0  10.2 -109.1 Analysis Plot     
     20231104 222010       GMI   10.4 -110.8    34   32%    7.58   -7.58      N/A   40.0  10.4 -110.8 Analysis Plot     
     20231104 230750  SSMISF18   10.5 -110.8    46   50%   16.46  -16.46      N/A   40.0  10.5 -110.9 Analysis Plot     
     20231105 010026  SSMISF16   10.6 -111.0    23   11%    7.81   -7.81      N/A   45.0  10.5 -111.2 Analysis Plot     
     20231105 021039  SSMISF17   10.6 -110.9   N/A   N/A     N/A     N/A      N/A   45.0  10.6 -111.4 Analysis Plot     
     20231105 094808       GMI   10.6 -112.2    23   N/A    4.17   -4.17      N/A   45.0  10.6 -112.2 Analysis Plot     
     20231105 114553  SSMISF18   11.0 -113.3   N/A   N/A     N/A     N/A      N/A   45.0  10.8 -112.7 Analysis Plot     
     20231105 133900  SSMISF16   10.9 -113.0   N/A   N/A     N/A     N/A      N/A   45.0  10.8 -112.8 Analysis Plot     
     20231105 203811     AMSR2   10.6 -114.3   N/A   N/A     N/A     N/A      N/A   40.0  10.6 -114.4 Analysis Plot     
     20231105 225554  SSMISF18   10.6 -114.8   N/A   N/A     N/A     N/A      N/A   40.0  10.7 -114.6 Analysis Plot     
     20231106 004808  SSMISF16   10.8 -114.8    79   N/A    2.60   -2.60      N/A   30.0  10.8 -114.8 Analysis Plot     
     20231106 015446  SSMISF17   10.8 -114.8   246   N/A    3.37   -3.37      N/A   30.0  10.8 -114.9 Analysis Plot

Legend

  - Overpass Date/Time are determined from satellite overpass of targeted TC (position determined from Best Track Lat/Lon position). Date is YYYYMMDD and time in HHMMSS (UTC).

  - Forecast (Best Track) and ARCHER positions (deg) of the TC center at overpass day/time. Positive/Negative: Latitude = North/South Hemisphere; Longitude = Eastern/Western Hemisphere.

  - BT Vmax is the concurrent ATCF Best Track (BT) wind speed intensity estimate (Vmax) value from either NOAA/National Hurricane Center (NHC) (North Atlantic and Northeast Pacific), NOAA/Central Pacific Hurricane Center (CPHC) (North-central Pacific) or Joint Typhoon Warning Center (JTWC) (Northwest Pacific, Indian Ocean, or Southwest Pacific).

  - Sat is the satellite descriptor providing the overpass. Currently the satellites used are the DMSP/SSMIS-16/17/18, GPM/GMI, and GCOM/AMSR2.

  - Ring Diam (km) indicates the estimated surface eyewall diameter if one is analyzed in the PMW imagery. The value listed is the average PMW-estimated inner eyewall edge diameter minus 10 km for eyewall slope. N/A indicates no appreciable eyewall is analyzed.

  - Ring Pct is the percentage of the analyzed "ring" (eyewall inner boundary) that is 1) colder than the eye Tb (the "hot spot" -- warmest eye pixel) by at least 20K, or 2) that is colder than 232K and colder than the eye Tb by 10K, whichever is greater. Values are red if Ring % ≤65,yellow/brown if Ring % ≤85 and green if Ring % >85. N/A indicates no appreciable eyewall is analyzed. A value over 85% is used in the intensity score by adding 15 points to it.

  - TbDiff is the difference between the warmest eye pixel and the warmest pixel on the eyewall. This value is used in the Intensity Score. N/A indicates no appreciable eyewall is analyzed.

  - Eye Score values are based on the strength and organization of the convective/eyewall signatures in the PMW imagery, and based on the ARCHER center location. They normally range from 0 to 100 with empirically-determined thresholds related to intensity (Vmax) in the "Meaning" column (≥20 suggests ≥65kts; ≥60 suggests ≥85kts). Scores are listed as negative, and not used by the ADT, when the NHC, CPHC, or JTWC Best Track Vmax is <55 kts in order to filter out occasional "false eye" cases. A value of -920 is used when the warmest eye pixel is <200K to prevent false positives; -930 means edge of overpass and <85% of eyewall is captured and therefore can't fully be analyzed.