Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20130913T200515 tmi 5.0 24.7% 0.0 -0.0 n/a   37.1 kts
20130913T214954 ssmi15 34.5 0.0% 3.2 -3.2 n/a   38.9 kts
20130914T005734 ssmis17 67.8 21.9% 6.4 -6.4 n/a   40.0 kts
20130914T041910 tmi 12.2 NaN% NaN NaN n/a   40.0 kts
20130914T102341 ssmi15 56.7 0.0% 2.1 -2.1 n/a   44.1 kts
20130914T122242 ssmis16 179.0 48.0% 1.8 -1.8 n/a   45.0 kts
20130915T000833 ssmis17 212.4 20.6% 1.9 1.9 n/a   55.2 kts
20130915T004454 ssmis17 78.9 17.8% 3.0 -3.0 n/a   55.9 kts
20130915T131901 ssmis17 23.4 79.5% 5.4 5.4 n/a   58.7 kts
20130915T195340 tmi 201.2 24.7% 1.4 -1.4 n/a   39.2 kts
20130916T030150 ssmis18 212.4 27.4% 6.1 -6.1 n/a   30.0 kts
20130916T030308 ssmis18 212.4 27.4% 6.2 -6.2 n/a   30.0 kts
20130916T153358 ssmis18 212.4 NaN% NaN NaN n/a   30.0 kts
20130917T223005 ssmi15 67.8 0.0% 7.3 -7.3 n/a   30.0 kts
20130918T021237 tmi 101.2 15.1% 4.6 -4.6 n/a   30.0 kts
20130918T022623 ssmis18 101.2 20.6% 3.9 -3.9 n/a   30.0 kts
20130918T105950 ssmi15 78.9 0.0% 5.4 -5.4 n/a   33.8 kts
20130918T131029 ssmis16 23.4 NaN% NaN NaN n/a   37.0 kts
20130918T184421 tmi 34.5 100.0% 22.3 -37.3 n/a   52.0 kts
20130918T221440 ssmi15 45.6 15.1% 20.0 20.0 n/a   62.8 kts
20130918T235620 ssmis16 45.6 30.1% 4.5 4.5 n/a   65.0 kts
20130919T002649 ssmis16 56.7 35.6% 4.1 4.1 n/a   65.0 kts
20130919T011644 tmi 23.4 49.3% 6.9 6.9 n/a   65.0 kts
20130919T022756 ssmis18 56.7 42.5% 0.0 0.0 n/a   65.0 kts
20130919T104349 ssmi15 34.5 9.6% 8.6 8.6 n/a   65.0 kts
20130919T125701 ssmis16 34.5 100.0% 26.8 41.8 >65 kts   64.7 kts
20130919T145834 ssmis18 23.4 54.8% 8.6 8.6 n/a   62.0 kts
20130919T215939 ssmi15 167.9 13.7% 0.0 -0.0 n/a   37.3 kts
20130920T001422 ssmis16 179.0 NaN% NaN NaN n/a   31.9 kts
20130920T002108 tmi 212.4 NaN% NaN NaN n/a   31.7 kts
20130920T021608 ssmis18 212.4 NaN% NaN NaN n/a   28.1 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).