Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20251128T213219 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20251128T223909 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20251128T235651 ssmis16_85 99.9 45.0 15.1% 0.3 -0.3 n/a   30.0 kts
20251129T052327 gmi_85 66.6 100.6 1.4% 3.2 -3.2 n/a   30.0 kts
20251129T061642 amsr2_85 155.4 61.7 1.4% 1.2 -1.2 n/a   30.0 kts
20251129T083734 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20251129T170327 gmi_85 88.8 11.7 0.0% 0.8 -0.8 n/a   25.8 kts
20251129T183452 amsr2_85 77.7 33.9 15.1% 5.8 -5.8 n/a   25.0 kts
20251129T211744 ssmis18_85 66.6 45.0 19.2% 8.3 -8.3 n/a   25.0 kts
20251129T222423 ssmis17_85 33.3 17.2 NaN% NaN NaN n/a   25.0 kts
20251129T234235 ssmis16_85 77.7 83.9 12.3% 4.3 -4.3 n/a   25.0 kts
20251130T082359 ssmis18_85 55.5 22.8 0.0% 4.1 -4.1 n/a   22.0 kts
20251130T161826 gmi_85 66.6 28.4 0.0% 4.6 -4.6 n/a   20.0 kts
20251130T210138 ssmis18_85 99.9 45.0 0.0% 4.3 -4.3 n/a   20.0 kts
20251130T232801 ssmis16_85 66.6 28.4 6.8% 2.7 -2.7 n/a   20.0 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).