Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20160328T213719 ssmi15 212.4 12.3% 6.3 -6.3 n/a   37.2 kts
20160329T010510 ssmis17 190.1 28.8% 6.5 -6.5 n/a   38.9 kts
20160329T104713 ssmis16 23.4 56.2% 0.0 -0.0 n/a   40.0 kts
20160329T133139 ssmis18 112.3 NaN% NaN NaN n/a   40.0 kts
20160329T133733 ssmis17 34.5 75.3% 6.9 -6.9 n/a   40.0 kts
20160329T212301 ssmi15 5.0 8.2% 0.0 -0.0 n/a   39.0 kts
20160329T220135 ssmis16 179.0 41.8% 0.0 -0.0 n/a   38.7 kts
20160330T103003 ssmis16 NaN 0.0% 0.0 -920.0 n/a   34.8 kts
20160330T131333 ssmis18 12.2 58.9% 0.0 -0.0 n/a   33.8 kts
20160330T132317 ssmis17 156.8 0.0% 6.7 -6.7 n/a   33.7 kts
20160330T213034 ssmis16 12.2 57.5% 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).