Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20100519T150138 ssmis16 NaN 32.9% 0.6 -0.6 n/a   35.0 kts
20100519T220114 amsre NaN 42.5% 1.2 -1.2 n/a   38.7 kts
20100520T023402 ssmis17 NaN 42.5% 0.0 -0.0 n/a   40.0 kts
20100520T033912 ssmis16 23.4 90.4% 8.2 -23.2 n/a   40.0 kts
20100520T134600 ssmi15 NaN 17.8% 3.9 -3.9 n/a   45.0 kts
20100520T134635 ssmis17 NaN 16.4% 0.0 -0.0 n/a   45.0 kts
20100520T233644 tmi NaN 42.5% 0.2 -0.2 n/a   40.1 kts
20100521T022130 ssmi15 NaN 0.0% 0.0 -0.0 n/a   45.1 kts
20100521T022332 ssmis17 NaN 49.3% 1.3 -1.3 n/a   45.3 kts
20100521T032634 ssmis16 NaN 31.5% 6.5 -6.5 n/a   49.1 kts
20100521T133030 ssmi15 NaN 34.2% 0.0 0.0 n/a   54.4 kts
20100521T164428 ssmis18 NaN 11.0% 2.0 2.0 n/a   51.2 kts
20100521T224101 tmi NaN 15.1% 0.0 -0.0 n/a   45.4 kts
20100522T015550 ssmis17 NaN 52.0% 0.0 -0.0 n/a   45.0 kts
20100522T031358 ssmis16 NaN 72.6% 4.7 -4.7 n/a   45.0 kts
20100522T083147 tmi NaN 1.4% 0.0 -0.0 n/a   43.6 kts
20100522T101700 amsre NaN 0.0% 0.0 -0.0 n/a   41.7 kts
20100522T161628 ssmis18 NaN 0.0% 0.0 -0.0 n/a   35.7 kts
20100522T223134 amsre NaN 0.0% 0.0 -0.0 n/a   34.7 kts
20100523T014955 ssmis17 NaN 0.0% 0.0 -0.0 n/a   32.8 kts
20100523T015030 ssmi15 NaN 0.0% 1.2 -1.2 n/a   32.8 kts
20100523T050955 ssmis18 NaN 0.0% 3.8 -3.8 n/a   30.5 kts
20100523T073625 tmi NaN 1.4% 0.5 -0.5 n/a   29.2 kts
20100523T153120 ssmis16 NaN 0.0% 0.0 -0.0 n/a   25.9 kts
20100523T162045 ssmis18 NaN 0.0% 0.0 -0.0 n/a   25.6 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.