Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20110819T010538 ssmis18 NaN 0.0% 1.4 -1.4 n/a   30.0 kts
20110819T013520 ssmis18 NaN 0.0% 4.8 -4.8 n/a   30.0 kts
20110819T070207 amsre NaN 26.0% 2.3 -2.3 n/a   30.0 kts
20110819T115713 ssmis16 NaN 26.0% 0.0 -0.0 n/a   30.0 kts
20110819T141056 ssmis18 NaN 0.0% 4.1 -4.1 n/a   30.9 kts
20110819T193219 amsre 5.0 NaN% NaN NaN n/a   37.3 kts
20110819T193221 amsre 12.2 NaN% NaN NaN n/a   37.3 kts
20110819T232518 ssmis17 NaN 57.5% 0.0 -0.0 n/a   44.3 kts
20110819T232620 ssmis17 NaN 32.9% 0.0 -0.0 n/a   44.3 kts
20110820T012339 ssmis18 NaN 76.7% 0.0 -0.0 n/a   46.6 kts
20110820T025237 tmi NaN 49.3% 0.0 -0.0 n/a   48.2 kts
20110820T074449 amsre NaN 27.4% 0.5 -0.5 n/a   50.0 kts
20110820T114416 ssmis16 -919.0 -999.0% -999.0 -909.0 n/a   50.0 kts
20110820T120117 ssmis17 NaN 61.6% 2.2 -2.2 n/a   50.0 kts
20110820T135901 ssmis18 NaN 15.1% 0.0 -0.0 n/a   50.0 kts
20110820T174426 tmi NaN 26.0% 3.5 -3.5 n/a   50.0 kts
20110820T231234 ssmis17 NaN 32.9% 1.9 -1.9 n/a   36.5 kts
20110820T231351 ssmis17 NaN 31.5% 1.9 -1.9 n/a   36.4 kts
20110821T003811 ssmis16 -919.0 -999.0% -999.0 -909.0 n/a   34.3 kts
20110821T015541 tmi NaN 4.1% 1.7 -1.7 n/a   33.0 kts
20110821T114825 ssmis17 NaN 5.5% 1.1 -1.1 n/a   25.0 kts
20110821T131231 ssmis16 NaN 0.0% 2.2 -2.2 n/a   25.0 kts
20110821T192051 amsre NaN 13.7% 1.4 -1.4 n/a   25.6 kts
20110821T235738 ssmis16 156.8 NaN% NaN NaN n/a   30.0 kts
20110822T002550 ssmis16 167.9 NaN% NaN NaN n/a   30.0 kts
20110822T024013 ssmis18 201.2 NaN% NaN NaN n/a   30.0 kts
20110822T125937 ssmis16 NaN 0.0% 2.1 -2.1 n/a   28.9 kts
20110822T151555 ssmis18 NaN 0.0% 1.1 -1.1 n/a   27.4 kts
20110822T172938 tmi NaN 0.0% 2.2 -2.2 n/a   25.5 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.