Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20110114T041728 tmi NaN 49.3% 0.0 -0.0 n/a   45.3 kts
20110114T153107 amsre 45.6 48.0% 12.6 12.6 n/a   55.0 kts
20110114T192246 ssmis17 56.7 100.0% 24.6 39.6 >65 kts   55.0 kts
20110115T032244 tmi -919.0 -999.0% -999.0 -909.0 n/a   55.5 kts
20110115T034458 amsre 78.9 100.0% 44.4 59.4 >65 kts   55.6 kts
20110115T193016 ssmis17 23.4 100.0% 39.1 54.1 >65 kts   76.6 kts
20110116T024842 amsre 12.2 100.0% 75.7 90.7 >85 kts# 86.8 kts
20110116T104016 tmi 5.0 98.6% 14.7 29.7 >65 kts   89.9 kts
20110117T031319 tmi NaN 8.2% 3.3 3.3 n/a   70.0 kts
20110117T055158 ssmis17 NaN 0.0% 0.0 0.0 n/a   65.6 kts
20110117T072116 ssmis16 NaN 31.5% 1.4 1.4 n/a   63.0 kts
20110117T080735 tmi NaN 0.0% 0.0 0.0 n/a   61.7 kts
20110117T085233 ssmis18 NaN 0.0% 0.0 0.0 n/a   60.4 kts
20110117T171149 ssmis17 NaN 38.4% 2.6 2.6 n/a   45.3 kts
20110117T182410 ssmis16 NaN 27.0% 0.0 0.0 n/a   45.0 kts
20110117T201316 ssmis18 NaN 0.0% 0.0 -0.0 n/a   45.0 kts
20110118T023051 amsre NaN 0.0% 2.9 -2.9 n/a   40.9 kts
20110118T070504 ssmis16 NaN 0.0% 0.0 -0.0 n/a   35.0 kts
20110118T083659 ssmis18 NaN 0.0% 1.8 -1.8 n/a   35.0 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.