Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20151128T021248 ssmi15 5.0 0.0% 0.0 -0.0 n/a   40.0 kts
20151128T030613 ssmis16 23.4 82.2% 6.8 -6.8 n/a   40.0 kts
20151128T062841 ssmis19 12.2 26.0% 0.0 -0.0 n/a   40.0 kts
20151128T064207 ssmis18 212.4 27.4% 1.8 -1.8 n/a   40.0 kts
20151128T173956 ssmis19 12.2 34.2% 0.0 -0.0 n/a   40.0 kts
20151128T175735 ssmis19 12.2 49.3% 0.0 -0.0 n/a   40.0 kts
20151128T180428 ssmis17 212.4 NaN% NaN NaN n/a   40.0 kts
20151129T015557 ssmi15 156.8 0.0% 3.2 -3.2 n/a   40.0 kts
20151129T032939 ssmis16 167.9 0.0% 5.1 -5.1 n/a   40.0 kts
20151129T062904 ssmis18 12.2 0.0% 3.2 -3.2 n/a   40.0 kts
20151129T063257 ssmis19 179.0 0.0% 5.0 -5.0 n/a   40.0 kts
20151129T173001 ssmis19 101.2 0.0% 0.0 -0.0 n/a   35.0 kts
20151129T173722 ssmis17 190.1 NaN% NaN NaN n/a   35.0 kts
20151129T174449 ssmis19 101.2 0.0% 0.0 -0.0 n/a   35.0 kts
20151130T031550 ssmis16 5.0 0.0% 0.0 -0.0 n/a   32.4 kts
20151130T053220 ssmis19 123.4 0.0% 0.0 -0.0 n/a   30.4 kts
20151130T061550 ssmis18 112.3 0.0% 0.0 -0.0 n/a   30.0 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).