Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20100903T121600 ssmi15 NaN 20.6% 1.6 -1.6 n/a   30.0 kts
20100903T130749 tmi NaN 0.0% 0.0 -0.0 n/a   30.0 kts
20100903T210047 amsre NaN 4.1% 3.5 -3.5 n/a   30.0 kts
20100904T010958 ssmis17 NaN 0.0% 0.0 -0.0 n/a   29.5 kts
20100904T021823 ssmis16 NaN 0.0% 0.6 -0.6 n/a   28.4 kts
20100904T053825 tmi NaN 0.0% 2.2 -2.2 n/a   25.1 kts
20100904T091103 amsre NaN 0.0% 2.2 -2.2 n/a   25.0 kts
20100904T134329 ssmis17 NaN 0.0% 1.8 -1.8 n/a   22.3 kts
20100904T145039 ssmis16 NaN 0.0% 2.2 -2.2 n/a   21.4 kts
20100905T005852 ssmis17 NaN 0.0% 5.4 -5.4 n/a   20.0 kts
20100905T020613 ssmis16 NaN 0.0% 5.5 -5.5 n/a   20.0 kts
20100905T034714 ssmis18 NaN 0.0% 1.1 -1.1 n/a   20.0 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.