Tropical Storm 10P

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                 
     20240204 045251  SSMISF17  -14.2 -164.6   N/A   N/A     N/A     N/A      N/A   35.0 -14.9 -164.2 Analysis Plot     
     20240205 150723  SSMISF18  -15.1 -163.1   N/A   N/A     N/A     N/A      N/A   35.0 -15.0 -163.7 Analysis Plot     
     20240205 173024  SSMISF17  -15.0 -162.5   N/A   N/A     N/A     N/A      N/A   35.0 -15.1 -163.1 Analysis Plot     
     20240206 001313     AMSR2  -15.6 -159.9   N/A   N/A     N/A     N/A      N/A   40.0 -16.5 -159.4 Analysis Plot     
     20240206 110546       GMI  -17.2 -157.2   N/A   N/A     N/A     N/A      N/A   45.0 -16.6 -158.1 Analysis Plot     
     20240207 034254  SSMISF16  -18.7 -153.5   179    1%    0.95   -0.95      N/A   40.0 -18.0 -154.1 Analysis Plot     
     20240207 102529       GMI  -19.2 -151.4   N/A   N/A     N/A     N/A      N/A   35.0 -18.9 -151.9 Analysis Plot     
     20240207 114905     AMSR2  -18.8 -150.9   N/A   N/A     N/A     N/A      N/A   40.0 -19.0 -151.4 Analysis Plot     
     20240208 032851  SSMISF16  -19.2 -150.6   N/A   N/A     N/A     N/A      N/A   40.0 -19.4 -150.4 Analysis Plot     
     20240208 094424       GMI  -19.1 -148.6    68   N/A    1.11   -1.11      N/A   40.0 -19.5 -148.9 Analysis Plot     
     20240209 012004  SSMISF18  -19.8 -144.0   N/A   N/A     N/A     N/A      N/A   40.0 -19.5 -145.2 Analysis Plot     
     20240209 031456  SSMISF16  -19.7 -143.5   N/A   N/A     N/A     N/A      N/A   40.0 -19.5 -145.2 Analysis Plot     
     20240209 090325       GMI  -20.9 -144.8   N/A   N/A     N/A     N/A      N/A   50.0 -19.8 -143.1 Analysis Plot     
     20240209 123410  SSMISF18  -20.3 -139.3   N/A   N/A     N/A     N/A      N/A   45.0 -21.2 -141.0 Analysis Plot     
     20240209 145553  SSMISF17  -22.1 -142.3   N/A   N/A     N/A     N/A      N/A   45.0 -21.2 -141.0 Analysis Plot     
     20240210 010415  SSMISF18  -24.2 -136.9   N/A   N/A     N/A     N/A      N/A   40.0 -24.9 -137.0 Analysis Plot     
     20240210 025919  SSMISF16  -24.6 -137.3   268    3%    2.72   -2.72      N/A   40.0 -24.9 -137.0 Analysis Plot     
     20240210 032531  SSMISF17  -24.7 -137.3   279    3%    0.69   -0.69      N/A   40.0 -24.9 -137.0 Analysis Plot     
     20240210 082312       GMI  -26.4 -138.3   N/A   N/A     N/A     N/A      N/A   40.0 -24.9 -137.0 Analysis Plot     
     20240210 122120  SSMISF18  -25.3 -137.2    79   N/A    3.17   -3.17      N/A   40.0 -24.9 -137.0 Analysis Plot     
     20240210 144226  SSMISF17  -24.9 -137.1    12   N/A    0.65   -0.65      N/A   40.0 -24.9 -137.0 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.