Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20140116T163356 ssmis18 12.2 53.4% 2.4 -2.4 n/a   35.0 kts
20140116T233814 ssmi15 12.2 63.0% 4.9 -4.9 n/a   44.9 kts
20140117T022256 ssmis16 212.4 NaN% NaN NaN n/a   45.0 kts
20140117T071702 tmi 134.5 NaN% NaN NaN n/a   44.9 kts
20140117T120752 ssmi15 212.4 NaN% NaN NaN n/a   43.3 kts
20140117T134924 tmi 212.4 NaN% NaN NaN n/a   42.4 kts
20140117T144121 ssmis16 112.3 0.0% 2.2 -2.2 n/a   41.9 kts
20140117T155932 ssmis17 134.5 5.5% 4.8 -4.8 n/a   41.2 kts
20140118T015309 ssmis16 212.4 5.5% 5.8 -5.8 n/a   35.0 kts
20140118T031622 ssmis17 112.3 NaN% NaN NaN n/a   35.0 kts
20140118T075905 tmi 134.5 0.0% 5.7 -5.7 n/a   33.3 kts
20140118T143104 tmi 90.1 NaN% NaN NaN n/a   30.0 kts
20140118T144554 ssmis16 5.0 57.5% 0.0 -0.0 n/a   30.0 kts
20140118T154601 ssmis17 5.0 58.9% 0.0 -0.0 n/a   30.0 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).