Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20140117T174457 ssmis16 167.9 43.8% 3.2 -3.2 n/a   38.3 kts
20140117T183116 ssmis17 212.4 8.2% 2.5 -2.5 n/a   38.7 kts
20140117T210728 ssmis18 12.2 64.4% 2.4 -2.4 n/a   39.6 kts
20140117T224004 tmi 34.5 41.1% 2.0 -2.0 n/a   39.9 kts
20140118T060056 ssmis16 212.4 4.1% 6.3 -6.3 n/a   40.0 kts
20140118T063043 ssmis17 179.0 9.6% 0.0 -0.0 n/a   40.0 kts
20140118T065124 tmi 78.9 0.0% 1.1 -1.1 n/a   40.0 kts
20140118T092919 ssmis18 12.2 0.0% 0.2 -0.2 n/a   40.0 kts
20140118T173319 ssmis16 34.5 0.0% 2.4 -2.4 n/a   40.0 kts
20140118T183320 ssmis17 101.2 0.0% 3.0 -3.0 n/a   40.0 kts
20140118T204924 ssmis18 212.4 0.0% 4.3 -4.3 n/a   40.0 kts
20140118T232342 tmi 212.4 0.0% 3.4 -3.4 n/a   40.0 kts
20140119T041800 tmi 134.5 8.2% 2.8 -2.8 n/a   36.0 kts
20140119T044755 ssmi15 212.4 NaN% NaN NaN n/a   35.5 kts
20140119T060258 ssmis16 156.8 NaN% NaN NaN n/a   35.0 kts
20140119T065607 ssmis17 190.1 NaN% NaN NaN n/a   35.0 kts
20140119T092603 ssmis18 212.4 0.0% 2.8 -2.8 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).