Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130224T091730 ssmis16 12.2 100.0% 13.3 -28.3 n/a   41.6 kts
20130224T120709 ssmis18 90.1 21.9% 0.0 -0.0 n/a   45.2 kts
20130224T194016 ssmi15 134.5 35.6% 1.5 -1.5 n/a   61.1 kts
20130224T214749 ssmis17 145.7 41.1% 3.3 3.3 n/a   62.1 kts
20130224T231817 ssmis18 212.4 49.3% 5.8 5.8 n/a   62.6 kts
20130224T233739 tmi 190.1 28.8% 7.2 7.2 n/a   62.7 kts
20130225T075004 tmi 201.2 65.8% 13.8 13.8 n/a   66.4 kts
20130225T102847 ssmis17 167.9 100.0% 33.0 48.0 >65 kts   69.1 kts
20130225T121251 ssmis18 145.7 100.0% 32.7 47.7 >65 kts   71.1 kts
20130225T214159 ssmis17 134.5 100.0% 23.2 38.2 >65 kts   72.7 kts
20130225T224313 tmi 134.5 50.7% 21.3 21.3 >65 kts   71.6 kts
20130225T232632 ssmis18 112.3 60.3% 21.0 21.0 >65 kts   70.7 kts
20130226T065427 tmi 101.2 64.4% 21.3 21.3 >65 kts   65.5 kts
20130226T075657 ssmi15 101.2 100.0% 43.6 58.6 >65 kts   67.1 kts
20130226T101529 ssmis17 101.2 100.0% 56.4 71.4 >85 kts# 73.7 kts
20130226T112804 ssmis18 90.1 100.0% 29.8 44.8 >65 kts   78.0 kts
20130226T190927 ssmi15 67.8 100.0% 33.5 48.5 >65 kts   94.7 kts
20130226T212924 ssmis17 67.8 100.0% 51.7 66.7 >85 kts# 92.6 kts
20130226T214613 ssmis16 78.9 100.0% 58.2 73.2 >85 kts# 92.3 kts
20130227T055851 tmi 45.6 57.5% 19.8 19.8 n/a   80.0 kts
20130227T074117 ssmi15 34.5 45.2% 10.3 10.3 n/a   78.2 kts
20130227T093257 ssmis17 34.5 32.9% 5.2 5.2 n/a   76.2 kts
20130227T185408 ssmi15 90.1 2.7% 0.0 0.0 n/a   67.0 kts
20130227T205451 ssmis17 179.0 0.0% 0.0 0.0 n/a   59.6 kts
20130227T213127 ssmis16 190.1 2.7% 0.3 0.3 n/a   57.4 kts
20130227T213348 ssmis16 190.1 0.0% 0.1 0.1 n/a   57.2 kts
20130227T223015 tmi 167.9 0.0% 2.3 -2.3 n/a   54.0 kts
20130228T050325 tmi 212.4 0.0% 1.0 -1.0 n/a   40.0 kts
20130228T072444 ssmi15 5.0 0.0% 0.6 -0.6 n/a   36.1 kts
20130228T092016 ssmis17 78.9 0.0% 1.0 -1.0 n/a   33.2 kts
20130228T100543 ssmis16 12.2 0.0% 1.0 -1.0 n/a   32.2 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).