Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20241106T090405 amsr2_85 99.9 67.3 8.4% 5.1 -5.1 n/a   30.0 kts
20241106T231057 ssmis18_85 299.7 139.5 NaN% NaN NaN n/a   25.0 kts
20241106T231827 gmi_85 310.8 150.7 NaN% NaN NaN n/a   25.0 kts
20241107T203723 amsr2_85 255.3 122.9 NaN% NaN NaN n/a   25.0 kts
20241107T223828 gmi_85 288.6 139.5 NaN% NaN NaN n/a   25.0 kts
20241107T225649 ssmis18_85 255.3 122.9 5.5% 2.5 -2.5 n/a   25.0 kts
20241108T012029 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20241108T012520 ssmis17_85 22.2 6.1 0.0% 3.0 -3.0 n/a   25.0 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).