Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20131228T071658 ssmi15 123.4 23.3% 0.0 -0.0 n/a   35.0 kts
20131228T084017 ssmis16 156.8 27.4% 7.4 -7.4 n/a   35.0 kts
20131228T100024 ssmis17 190.1 37.0% 11.6 -11.6 n/a   35.0 kts
20131228T112644 tmi 167.9 35.6% 14.9 -14.9 n/a   35.0 kts
20131228T121908 ssmis18 179.0 31.5% 10.6 -10.6 n/a   35.1 kts
20131228T201826 ssmis16 78.9 26.0% 0.3 -0.3 n/a   49.8 kts
20131228T211527 ssmis17 134.5 39.7% 8.6 -8.6 n/a   51.8 kts
20131228T232453 ssmis18 112.3 39.7% 14.6 -14.6 n/a   54.8 kts
20131229T070043 ssmi15 101.2 30.1% 20.2 20.2 >65 kts   55.3 kts
20131229T085730 ssmis16 123.4 67.1% 17.3 17.3 n/a   56.8 kts
20131229T095920 ssmis17 101.2 52.0% 14.6 14.6 n/a   58.0 kts
20131229T120631 ssmis18 101.2 69.9% 13.5 13.5 n/a   60.1 kts
20131229T232009 ssmis18 67.8 100.0% 21.6 36.6 >65 kts   69.9 kts
20131230T092938 ssmis17 56.7 100.0% 64.3 79.3 >85 kts# 79.3 kts
20131230T111347 tmi 45.6 100.0% 54.4 69.4 >85 kts# 84.3 kts
20131230T112315 ssmis18 56.7 100.0% 67.2 82.2 >85 kts# 84.6 kts
20131230T192438 tmi 34.5 100.0% 41.4 56.4 >65 kts   75.0 kts
20131231T115629 tmi 12.2 0.0% 8.7 -8.7 n/a   52.3 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).