Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20160819T214728 ssmis18 134.5 20.6% 1.2 -1.2 n/a   35.0 kts
20160820T040156 ssmi15 190.1 NaN% NaN NaN n/a   35.0 kts
20160820T062839 ssmis16 78.9 1.4% 3.2 -3.2 n/a   35.0 kts
20160820T091237 ssmis18 101.2 8.2% 1.0 -1.0 n/a   35.0 kts
20160820T183059 ssmis16 179.0 0.0% 0.0 -0.0 n/a   30.0 kts
20160820T212011 ssmis17 312.4 NaN% NaN NaN n/a   30.0 kts
20160820T212013 ssmis17 312.4 NaN% NaN NaN n/a   30.0 kts
20160820T213603 ssmis18 323.5 NaN% NaN NaN n/a   30.0 kts
20160820T213608 ssmis18 323.5 NaN% NaN NaN n/a   30.0 kts
20160821T061715 ssmis16 279.1 5.5% 0.0 -0.0 n/a   30.0 kts
20160821T084548 ssmis17 67.8 0.0% 2.1 -2.1 n/a   30.0 kts
20160821T085930 ssmis18 290.2 NaN% NaN NaN n/a   30.0 kts
20160821T174723 ssmi15 90.1 0.0% 1.8 -1.8 n/a   30.0 kts
20160821T182711 ssmis16 5.0 0.0% 0.9 -0.9 n/a   30.0 kts
20160821T210501 ssmis17 12.2 0.0% 1.1 -1.1 n/a   30.0 kts
20160821T212130 ssmis18 5.0 0.0% 0.7 -0.7 n/a   30.0 kts
20160822T060611 ssmis16 12.2 0.0% 0.9 -0.9 n/a   30.0 kts
20160822T083430 ssmis17 45.6 0.0% 4.9 -4.9 n/a   30.0 kts
20160822T085127 ssmis18 45.6 0.0% 5.0 -5.0 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).