Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20111203T121648 ssmis16 34.5 68.5% 1.2 -1.2 n/a   40.0 kts
20111203T133104 ssmis18 23.4 68.5% 0.8 -0.8 n/a   40.0 kts
20111203T232649 ssmis16 NaN 0.0% 1.3 -920.0 n/a   40.0 kts
20111203T233836 ssmis17 12.2 0.0% 1.3 -1.3 n/a   40.0 kts
20111204T115829 ssmis16 23.4 57.5% 0.0 -0.0 n/a   40.0 kts
20111204T121552 ssmis17 NaN 57.5% 0.0 -920.0 n/a   40.0 kts
20111204T232555 ssmis17 34.5 28.8% 5.3 -5.3 n/a   40.0 kts
20111205T023010 ssmis18 45.6 49.3% 0.0 -0.0 n/a   48.5 kts
20111205T120309 ssmis17 12.2 31.5% 0.0 0.0 n/a   55.0 kts
20111205T120310 ssmis17 12.2 31.5% 0.0 0.0 n/a   55.0 kts
20111205T231309 ssmis17 NaN 68.5% 0.0 -920.0 n/a   51.0 kts
20111206T003956 ssmis16 90.1 NaN% NaN NaN n/a   49.2 kts
20111206T003957 ssmis16 78.9 NaN% NaN NaN n/a   49.2 kts
20111206T021826 ssmis18 34.5 49.3% 0.0 -0.0 n/a   47.3 kts
20111206T021827 ssmis18 34.5 49.3% 0.0 0.0 n/a   47.3 kts
20111206T115015 ssmis17 NaN 49.3% 0.0 -920.0 n/a   45.0 kts
20111206T115017 ssmis17 NaN 49.3% 0.0 -920.0 n/a   45.0 kts
20111207T003034 ssmis16 67.8 78.1% 2.7 -2.7 n/a   49.3 kts
20111207T003036 ssmis16 67.8 46.6% 0.0 -0.0 n/a   49.3 kts
20111207T021503 ssmis18 23.4 52.0% 0.0 -0.0 n/a   51.2 kts
20111207T021506 ssmis18 212.4 28.8% 3.2 -3.2 n/a   51.2 kts
20111207T113128 ssmis17 23.4 98.6% 18.3 33.3 >65 kts   58.7 kts
20111207T223710 ssmis17 34.5 100.0% 46.6 61.6 >85 kts# 87.0 kts
20111208T014047 ssmis18 23.4 100.0% 33.5 48.5 >65 kts   89.7 kts
20111208T112255 ssmis17 45.6 0.0% 0.6 0.6 n/a   80.8 kts
20111208T221147 ssmis17 212.4 6.8% 2.2 2.2 n/a   54.8 kts
20111209T110852 ssmis17 56.7 0.0% 0.0 -0.0 n/a   34.0 kts
20111209T222401 ssmis17 123.4 NaN% NaN NaN 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.