Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20131221T174631 tmi 67.8 100.0% 50.4 65.4 >85 kts# 137.4 kts
20131221T215948 ssmi15 67.8 100.0% 50.9 65.9 >85 kts# 139.6 kts
20131221T233532 ssmis16 67.8 100.0% 55.8 70.8 >85 kts# 140.0 kts
20131222T003801 ssmis17 67.8 100.0% 46.7 61.7 >85 kts# 139.8 kts
20131222T015808 tmi 67.8 100.0% 37.1 52.1 >65 kts   138.0 kts
20131222T023903 ssmis18 56.7 100.0% 40.1 55.1 >65 kts   136.6 kts
20131222T120940 ssmis16 56.7 100.0% 27.3 42.3 >65 kts   109.9 kts
20131222T151408 ssmis18 56.7 50.7% 15.6 15.6 n/a   108.3 kts
20131222T182826 tmi 56.7 42.5% 19.4 19.4 n/a   107.3 kts
20131222T214516 ssmi15 45.6 32.9% 23.7 23.7 >65 kts   106.2 kts
20131222T232000 ssmis16 56.7 58.9% 12.8 12.8 n/a   105.4 kts
20131223T002610 ssmis17 45.6 46.6% 8.1 8.1 n/a   104.6 kts
20131223T010132 tmi 45.6 53.4% 13.5 13.5 n/a   104.0 kts
20131223T022853 ssmis18 5.0 0.0% 0.0 0.0 n/a   101.8 kts
20131223T101519 ssmi15 167.9 50.7% 7.6 7.6 n/a   83.3 kts
20131223T111931 ssmis16 156.8 NaN% NaN NaN n/a   81.1 kts
20131223T122357 ssmis17 156.8 52.0% 7.9 7.9 n/a   79.4 kts
20131223T150011 ssmis18 156.8 1.4% 3.0 3.0 n/a   75.9 kts
20131223T213110 ssmi15 212.4 0.0% 5.3 5.3 n/a   68.5 kts
20131223T231251 ssmis16 212.4 0.0% 7.1 7.1 n/a   66.2 kts
20131224T000600 tmi 190.1 0.0% 5.1 5.1 n/a   64.8 kts
20131224T001450 ssmis17 212.4 0.0% 5.1 5.1 n/a   64.6 kts
20131224T021830 ssmis18 212.4 0.0% 3.8 3.8 n/a   60.2 kts
20131224T095749 ssmi15 212.4 0.0% 2.2 -2.2 n/a   41.5 kts
20131224T114029 ssmis16 134.5 0.0% 0.0 -0.0 n/a   40.0 kts
20131224T122222 ssmis17 145.7 0.0% 0.0 -0.0 n/a   40.0 kts
20131224T143603 ssmis18 179.0 0.0% 1.1 -1.1 n/a   40.1 kts
20131224T181753 tmi 145.7 0.0% 0.0 -0.0 n/a   40.7 kts
20131224T195603 tmi 12.2 0.0% 3.5 -3.5 n/a   41.4 kts
20131224T211609 ssmi15 112.3 0.0% 0.0 -0.0 n/a   42.3 kts
20131224T213401 tmi 34.5 0.0% 5.1 -5.1 n/a   42.5 kts
20131224T230020 ssmis16 156.8 0.0% 1.7 -1.7 n/a   43.9 kts
20131224T233935 ssmis17 12.2 0.0% 0.2 -0.2 n/a   44.6 kts
20131225T020620 ssmis18 190.1 NaN% NaN NaN n/a   45.0 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).