Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20251204T161223 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20251204T203227 gmi_85 88.8 39.5 4.1% 0.0 -0.0 n/a   35.0 kts
20251205T015936 ssmis18_85 88.8 39.5 53.4% 0.0 -0.0 n/a   36.7 kts
20251205T112821 amsr2_85 166.5 56.1 4.1% 2.6 -2.6 n/a   40.0 kts
20251205T155853 ssmis17_85 255.3 122.9 12.3% 3.1 -3.1 n/a   38.3 kts
20251205T194726 gmi_85 177.6 83.9 NaN% NaN NaN n/a   36.8 kts
20251205T234027 amsr2_85 299.7 33.9 2.7% 0.0 -0.0 n/a   35.1 kts
20251206T014535 ssmis18_85 77.7 139.5 NaN% NaN NaN n/a   35.0 kts
20251206T043136 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   35.0 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).