Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20161129T221426 ssmis16 90.1 NaN% NaN NaN n/a   38.5 kts
20161130T002212 ssmis17 78.9 43.8% 5.0 -5.0 n/a   40.3 kts
20161130T084700 ssmi15 201.2 17.8% 2.0 -2.0 n/a   45.0 kts
20161130T124835 ssmis17 134.5 NaN% NaN NaN n/a   45.0 kts
20161130T131606 ssmis18 112.3 20.6% 6.8 -6.8 n/a   45.0 kts
20161130T212354 ssmi15 101.2 0.0% 7.7 -7.7 n/a   42.0 kts
20161130T212355 ssmi15 101.2 1.4% 7.3 -7.3 n/a   42.0 kts
20161201T015403 ssmis18 23.4 0.0% 1.2 -1.2 n/a   40.0 kts
20161201T105037 ssmis16 156.8 0.0% 1.8 -1.8 n/a   35.5 kts
20161201T124329 ssmis18 5.0 0.0% 1.3 -1.3 n/a   35.0 kts
20161201T130029 ssmis17 5.0 0.0% 0.6 -0.6 n/a   35.0 kts
20161202T012838 ssmis17 5.0 0.0% 1.3 -1.3 n/a   25.0 kts
20161202T014208 ssmis18 145.7 0.0% 1.4 -1.4 n/a   25.0 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).