Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20131128T130006 tmi 5.0 0.0% 5.4 -5.4 n/a   30.0 kts
20131128T225031 tmi 234.6 NaN% NaN NaN n/a   30.0 kts
20131130T124752 tmi 234.6 NaN% NaN NaN n/a   30.0 kts
20131201T115250 tmi 78.9 4.1% 8.4 -8.4 n/a   30.0 kts
20131202T204812 tmi 123.4 11.0% 5.3 -5.3 n/a   30.0 kts
20131203T180656 ssmi15 34.5 15.1% 6.1 -6.1 n/a   30.0 kts
20131203T195236 tmi 90.1 5.5% 9.8 -9.8 n/a   28.8 kts
20131203T195237 tmi 45.6 9.6% 1.9 -1.9 n/a   28.8 kts
20131204T051736 ssmi15 34.5 0.0% 7.2 -7.2 n/a   25.0 kts
20131204T070604 ssmis16 23.4 0.0% 6.0 -6.0 n/a   25.0 kts
20131204T083627 ssmis17 45.6 0.0% 4.5 -4.5 n/a   25.0 kts
20131204T103626 ssmis18 301.3 NaN% NaN NaN n/a   25.0 kts
20131204T104458 tmi 179.0 NaN% NaN NaN n/a   25.0 kts
20131204T175114 ssmi15 256.8 NaN% NaN NaN n/a   23.5 kts
20131204T185722 tmi 12.2 0.0% 11.0 -11.0 n/a   23.0 kts
20131204T201924 ssmis16 5.0 0.0% 2.9 -2.9 n/a   22.3 kts
20131204T231144 ssmis18 67.8 11.0% 1.3 -1.3 n/a   20.5 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.

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).