Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20110609T013643 tmi NaN 0.0% 0.2 -0.2 n/a   25.0 kts
20110609T094430 ssmis17 NaN 12.3% 4.5 -4.5 n/a   25.0 kts
20110609T123217 ssmis18 NaN 28.8% 4.4 -4.4 n/a   25.2 kts
20110609T162851 tmi NaN 19.2% 2.9 -2.9 n/a   33.4 kts
20110609T215923 ssmis17 NaN 9.6% 7.6 -7.6 n/a   35.0 kts
20110610T004025 tmi NaN 9.6% 8.4 -8.4 n/a   35.0 kts
20110610T052052 amsre NaN 5.5% 2.7 -2.7 n/a   35.0 kts
20110610T093301 ssmis17 NaN 15.1% 0.0 -0.0 n/a   35.0 kts
20110610T105353 ssmis16 NaN 11.0% 7.3 -7.3 n/a   35.0 kts
20110610T120325 ssmis18 NaN 6.8% 6.5 -6.5 n/a   35.0 kts
20110610T171124 tmi NaN 0.0% 3.1 -3.1 n/a   30.8 kts
20110610T173044 amsre 134.5 NaN% NaN NaN n/a   30.4 kts
20110610T220102 ssmis17 NaN 11.0% 1.9 -1.9 n/a   25.9 kts
20110610T232147 ssmis16 12.2 NaN% NaN NaN n/a   25.1 kts
20110610T234412 tmi NaN 15.1% 7.2 -7.2 n/a   25.0 kts
20110611T004051 ssmis18 NaN 15.1% 8.3 -8.3 n/a   25.0 kts
20110611T091529 ssmis17 NaN 0.0% 1.4 -1.4 n/a   21.7 kts
20110611T102716 ssmis16 NaN 2.7% 1.3 -1.3 n/a   20.9 kts
20110611T114716 ssmis18 312.4 NaN% NaN NaN n/a   20.1 kts
20110611T181212 amsre NaN 0.0% 0.6 -0.6 n/a   17.2 kts
20110611T204706 ssmis18 90.1 NaN% NaN NaN n/a   16.2 kts
20110611T215102 ssmis17 NaN 5.5% 0.5 -0.5 n/a   15.8 kts
20110611T224837 tmi 167.9 NaN% NaN NaN n/a   15.4 kts
20110611T231019 ssmis16 NaN 20.6% 2.1 -2.1 n/a   15.3 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.