Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20160718T012226 ssmis17 56.7 1.4% 3.3 -3.3 n/a   49.0 kts
20160718T031444 ssmis18 23.4 60.3% 10.9 -10.9 n/a   49.6 kts
20160718T105658 ssmi15 12.2 39.7% 0.0 -0.0 n/a   50.0 kts
20160718T135116 ssmis17 12.2 82.2% 0.0 -0.0 n/a   50.0 kts
20160719T024915 ssmis18 167.9 NaN% NaN NaN n/a   38.7 kts
20160719T153853 ssmis18 134.5 6.8% 3.9 -3.9 n/a   30.3 kts
20160720T002813 ssmis16 212.4 8.2% 4.5 -4.5 n/a   29.1 kts
20160720T025028 ssmis18 145.7 NaN% NaN NaN n/a   27.7 kts
20160720T030201 ssmis17 123.4 5.5% 1.3 -1.3 n/a   27.6 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).