Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130805T220805 ssmis17 145.7 NaN% NaN NaN n/a   29.4 kts
20130806T001547 ssmis18 123.4 30.4% 4.3 -4.3 n/a   30.0 kts
20130806T080608 ssmi15 212.4 NaN% NaN NaN n/a   31.4 kts
20130806T092338 ssmis16 123.4 21.9% 1.5 -1.5 n/a   33.0 kts
20130806T101515 tmi 45.6 50.7% 0.0 -0.0 n/a   34.0 kts
20130806T222957 ssmis16 312.4 NaN% NaN NaN n/a   35.0 kts
20130807T010714 tmi 212.4 NaN% NaN NaN n/a   35.5 kts
20130807T075156 ssmi15 256.8 46.6% 14.3 -14.3 n/a   39.2 kts
20130807T091827 tmi 234.6 31.5% 10.2 -10.2 n/a   37.8 kts
20130807T094330 ssmis16 179.0 5.5% 4.1 -4.1 n/a   37.3 kts
20130807T105621 ssmis17 201.2 11.0% 4.2 -4.2 n/a   36.0 kts
20130807T125256 ssmis18 67.8 0.0% 4.0 -4.0 n/a   34.2 kts
20130807T202330 ssmi15 112.3 28.8% 0.6 -0.6 n/a   30.0 kts
20130807T221638 ssmis16 134.5 21.9% 2.8 -2.8 n/a   29.8 kts
20130807T232915 ssmis17 156.8 1.4% 1.6 -1.6 n/a   29.3 kts
20130808T013048 ssmis18 201.2 0.0% 1.8 -1.8 n/a   28.0 kts
20130808T014851 tmi 201.2 2.7% 6.0 -6.0 n/a   27.8 kts
20130808T104339 ssmis17 123.4 5.5% 0.9 -0.9 n/a   22.8 kts
20130808T124552 ssmis18 145.7 0.0% 1.7 -1.7 n/a   22.0 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.

Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -909 is a failure to process (bad input data).