Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20110825T085904 ssmis16 56.7 NaN% NaN NaN n/a   30.0 kts
20110825T153634 amsre 90.1 15.1% 2.1 -2.1 n/a   30.0 kts
20110825T193351 ssmis16 12.2 0.0% 3.9 -3.9 n/a   30.0 kts
20110825T215214 ssmis18 212.4 5.5% 1.9 -1.9 n/a   30.0 kts
20110826T035048 amsre 67.8 0.0% 2.4 -2.4 n/a   30.0 kts
20110826T104421 tmi 12.2 0.0% 3.8 -3.8 n/a   30.0 kts
20110826T110426 ssmis18 12.2 0.0% 1.8 -1.8 n/a   30.0 kts
20110826T192910 ssmis16 23.4 0.0% 2.5 -2.5 n/a   29.2 kts
20110826T192945 ssmis17 5.0 0.0% 0.3 -0.3 n/a   29.2 kts
20110826T221609 ssmis18 12.2 0.0% 3.5 -3.5 n/a   26.0 kts
20110827T083241 ssmis16 145.7 0.0% 2.6 -2.6 n/a   25.0 kts
20110827T105141 ssmis18 5.0 0.0% 0.7 -0.7 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.