Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20160723T181657 ssmis16 223.5 NaN% NaN NaN n/a   35.0 kts
20160723T204141 ssmis18 134.5 20.6% 0.0 -0.0 n/a   37.1 kts
20160724T053714 ssmis16 190.1 NaN% NaN NaN n/a   40.0 kts
20160724T080213 ssmis18 90.1 8.2% 5.5 -5.5 n/a   40.0 kts
20160724T180121 ssmis16 201.2 NaN% NaN NaN n/a   40.0 kts
20160724T202520 ssmis18 301.3 NaN% NaN NaN n/a   39.5 kts
20160724T203405 ssmis17 323.5 NaN% NaN NaN n/a   39.4 kts
20160725T045827 ssmis16 5.0 0.0% 0.2 -0.2 n/a   31.3 kts
20160725T075231 ssmis18 5.0 0.0% 0.1 -0.1 n/a   30.0 kts
20160725T075956 ssmis17 23.4 0.0% 0.7 -0.7 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).