Tropical Storm 07E

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                 
     20250731 141548  SSMISF16   12.8 -116.0   101   46%    0.55   -0.55      N/A   45.0  13.3 -116.3 Analysis Plot     
     20250731 183400       GMI   13.7 -116.6   N/A   N/A     N/A     N/A      N/A   45.0  13.5 -116.9 Analysis Plot     
     20250731 211351     AMSR2   13.9 -117.4   N/A   N/A     N/A     N/A      N/A   45.0  13.6 -117.5 Analysis Plot     
     20250731 233949  SSMISF18   14.3 -118.4   N/A   N/A     N/A     N/A      N/A   50.0  13.9 -118.2 Analysis Plot     
     20250801 075447       GMI   14.6 -119.8   N/A   N/A     N/A     N/A      N/A   55.0  14.7 -119.6 Analysis Plot     
     20250801 092759     AMSR2   14.7 -120.6    12   69%   10.11   10.11      N/A   55.0  15.0 -120.6 Analysis Plot     
     20250801 121507  SSMISF18   15.3 -121.5   146   21%    6.51    6.51      N/A   55.0  15.3 -121.5 Analysis Plot     
     20250801 215802     AMSR2   16.0 -123.7    57   31%    2.31    2.31      N/A   60.0  16.2 -124.0 Analysis Plot     
     20250802 023414  SSMISF17   16.8 -125.1    57   44%    4.69    4.69      N/A   65.0  16.5 -124.8 Analysis Plot     
     20250802 025405  SSMISF16   16.8 -125.3    68   14%    8.02    8.02      N/A   65.0  16.5 -125.1 Analysis Plot     
     20250802 101003     AMSR2   17.9 -127.3   135    3%    2.99    2.99      N/A   65.0  17.9 -127.9 Analysis Plot     
     20250802 150753  SSMISF17   18.1 -129.0   112   12%    9.36    9.36      N/A   65.0  18.5 -128.9 Analysis Plot     
     20250802 152802  SSMISF16   18.3 -129.0    90    3%    4.59    4.59      N/A   65.0  18.6 -129.1 Analysis Plot     
     20250802 184136       GMI   18.8 -129.9   N/A   N/A     N/A     N/A      N/A   65.0  18.9 -129.7 Analysis Plot     
     20250803 005507  SSMISF18   19.4 -132.3   168    4%    0.51    0.51      N/A   55.0  19.5 -131.6 Analysis Plot     
     20250803 022111  SSMISF17   18.9 -132.0   N/A   N/A     N/A     N/A      N/A   55.0  19.7 -132.0 Analysis Plot     
     20250803 024240  SSMISF16   19.0 -131.5   N/A   N/A     N/A     N/A      N/A   55.0  19.5 -132.0 Analysis Plot     
     20250803 080455       GMI   20.1 -133.9   N/A   N/A     N/A     N/A      N/A   50.0  20.0 -133.5 Analysis Plot     
     20250803 105230     AMSR2   20.6 -134.8   N/A   N/A     N/A     N/A      N/A   45.0  20.5 -135.0 Analysis Plot     
     20250803 132711  SSMISF18   20.5 -135.3   279   N/A    2.69   -2.69      N/A   45.0  20.6 -135.2 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.