Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20131101T131719 ssmis17 190.1 NaN% NaN NaN n/a   30.0 kts
20131101T222906 ssmi15 167.9 0.0% 4.2 -4.2 n/a   30.0 kts
20131101T234325 ssmis17 112.3 15.1% 2.2 -2.2 n/a   30.0 kts
20131102T003041 ssmis17 67.8 20.6% 3.2 -3.2 n/a   30.0 kts
20131102T110154 ssmi15 190.1 NaN% NaN NaN n/a   30.0 kts
20131102T130430 ssmis17 12.2 0.0% 1.7 -1.7 n/a   30.0 kts
20131102T193928 tmi 5.0 0.0% 4.1 -4.1 n/a   30.0 kts
20131102T221344 ssmi15 12.2 0.0% 1.5 -1.5 n/a   30.0 kts
20131103T003317 ssmis16 12.2 0.0% 0.5 -0.5 n/a   30.1 kts
20131103T032327 ssmis18 12.2 0.0% 1.1 -1.1 n/a   32.3 kts
20131103T035058 tmi 12.2 0.0% 3.9 -3.9 n/a   32.8 kts
20131103T104544 ssmi15 5.0 0.0% 1.7 -1.7 n/a   39.6 kts
20131103T154232 ssmis18 212.4 NaN% NaN NaN n/a   40.0 kts
20131104T025529 tmi 23.4 0.0% 4.0 -4.0 n/a   35.0 kts
20131104T031232 ssmis18 212.4 NaN% NaN NaN n/a   35.0 kts
20131104T102822 ssmi15 179.0 0.0% 2.3 -2.3 n/a   28.0 kts
20131104T192730 tmi 212.4 1.4% 1.3 -1.3 n/a   20.0 kts
20131104T214355 ssmi15 12.2 0.0% 0.0 -0.0 n/a   20.0 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).