Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130912T193456 ssmis16 123.4 6.8% 1.5 -1.5 n/a   26.3 kts
20130912T202937 ssmis17 323.5 NaN% NaN NaN n/a   27.1 kts
20130913T044420 tmi 323.5 NaN% NaN NaN n/a   34.6 kts
20130913T080033 ssmis17 12.2 0.0% 4.9 -4.9 n/a   35.0 kts
20130913T102847 ssmis18 190.1 15.1% 1.3 -1.3 n/a   35.0 kts
20130913T200404 ssmis17 212.4 NaN% NaN NaN n/a   40.0 kts
20130913T230022 ssmis18 179.0 11.0% 4.2 -4.2 n/a   40.0 kts
20130914T052711 tmi 34.5 0.0% 2.8 -2.8 n/a   44.9 kts
20130914T081301 ssmis16 12.2 0.0% 5.1 -5.1 n/a   45.0 kts
20130914T100012 ssmis18 323.5 NaN% NaN NaN n/a   45.0 kts
20130914T115916 tmi 156.8 NaN% NaN NaN n/a   45.0 kts
20130914T184848 ssmi15 190.1 0.0% 1.0 -1.0 n/a   50.0 kts
20130914T204848 ssmis16 290.2 NaN% NaN NaN n/a   50.0 kts
20130914T223359 ssmis18 256.8 NaN% NaN NaN n/a   50.0 kts
20130915T060639 ssmi15 5.0 6.8% 0.0 0.0 n/a   55.1 kts
20130915T060917 tmi 23.4 20.6% 0.0 -0.0 n/a   55.1 kts
20130915T075130 ssmis16 23.4 46.6% 6.7 6.7 n/a   56.9 kts
20130915T092507 tmi 23.4 17.8% 5.2 5.2 n/a   58.5 kts
20130915T100700 ssmis18 23.4 26.0% 5.3 5.3 n/a   59.2 kts
20130915T183139 ssmi15 190.1 39.7% 23.1 23.1 >65 kts   59.9 kts
20130915T202929 ssmis16 78.9 37.0% 15.3 15.3 n/a   58.6 kts
20130915T214402 ssmis17 78.9 53.4% 7.2 7.2 n/a   57.3 kts
20130916T055249 ssmi15 190.1 NaN% NaN NaN n/a   50.0 kts
20130916T065315 tmi 223.5 NaN% NaN NaN n/a   50.0 kts
20130916T072419 ssmis17 23.4 0.0% 0.6 -0.6 n/a   50.0 kts
20130916T092714 ssmis18 190.1 0.0% 6.2 -6.2 n/a   50.0 kts
20130916T181220 ssmi15 134.5 NaN% NaN NaN n/a   44.9 kts
20130916T201757 ssmis16 34.5 46.6% 4.4 -4.4 n/a   43.4 kts
20130916T221722 ssmis18 12.2 42.5% 4.9 -4.9 n/a   41.9 kts
20130917T035849 ssmi15 23.4 0.0% 0.0 -0.0 n/a   37.0 kts
20130917T052109 ssmis16 290.2 NaN% NaN NaN n/a   35.6 kts
20130917T062051 ssmis17 323.5 NaN% NaN NaN n/a   35.0 kts
20130917T080642 ssmis18 256.8 NaN% NaN NaN n/a   35.0 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).