Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20201108T203019 ssmis16_85 99.9 17.2 11.0% 4.8 -4.8 n/a   32.1 kts
20201109T014519 gmi_85 333.0 161.8 NaN% NaN NaN n/a   36.5 kts
20201109T091615 ssmis18_85 166.5 78.4 NaN% NaN NaN n/a   40.0 kts
20201109T112249 ssmis17_85 144.3 72.8 24.7% 3.5 -3.5 n/a   40.0 kts
20201109T150018 gmi_85 66.6 33.9 20.6% 1.8 -1.8 n/a   37.5 kts
20201109T215333 ssmis18_85 44.4 17.2 61.6% 8.5 -8.5 n/a   31.8 kts
20201110T090346 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   29.9 kts
20201110T090830 ssmis16_85 188.7 89.5 NaN% NaN NaN n/a   29.8 kts
20201110T110923 ssmis17_85 155.4 72.8 18.2% 5.9 -5.9 n/a   27.6 kts
20201110T214043 ssmis18_85 111.0 50.6 NaN% NaN NaN n/a   18.5 kts
20201110T214539 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   18.4 kts
20201110T234608 ssmis17_85 177.6 83.9 0.0% 1.7 -1.7 n/a   17.6 kts
20201111T013519 gmi_85 333.0 161.8 NaN% NaN NaN n/a   16.8 kts
20201111T085539 ssmis16_85 321.9 156.2 NaN% NaN NaN n/a   15.0 kts

Key:

Diameter values indicate the estimated surface eyewall diameter (the MI eyewall edge diameter minus 10 km).

Diameter values are red if Ring % <= 65, yellow/brown if Ring % <= 85 and green if Ring % > 85.

"Ring %" 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.

"Tb diff" is the difference between the "hot spot" (warmest eye pixel) and the warmest pixel on the eyewall.

Scores 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).