Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20231023T075841 amsr2_85 33.3 11.7 89.0% 10.8 -25.8 n/a   36.6 kts
20231023T115924 ssmis17_85 310.8 150.7 NaN% NaN NaN n/a   40.0 kts
20231023T200959 amsr2_85 22.2 6.1 100.0% 25.2 -40.2 n/a   57.2 kts
20231024T000200 gmi_85 22.2 6.1 100.0% 50.7 -65.7 n/a   70.1 kts
20231024T003222 ssmis17_85 22.2 6.1 100.0% 21.5 36.5 >65 kts   70.9 kts
20231024T070410 amsr2_85 11.1 2.5 49.3% 1.8 1.8 n/a   79.1 kts
20231024T114626 ssmis17_85 66.6 28.4 67.6% 3.1 3.1 n/a   75.2 kts
20231024T191401 amsr2_85 266.4 128.4 NaN% NaN NaN n/a   71.9 kts
20231024T230659 gmi_85 44.4 17.2 NaN% NaN NaN n/a   62.2 kts
20231025T001800 ssmis17_85 222.0 106.2 NaN% NaN NaN n/a   59.3 kts
20231025T113316 ssmis17_85 77.7 33.9 0.0% 1.5 -1.5 n/a   38.1 kts
20231025T122659 gmi_85 33.3 11.7 0.0% 1.4 -1.4 n/a   36.9 kts
20231025T195627 amsr2_85 266.4 128.4 NaN% NaN NaN 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).