Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20251013T042527 amsr2_85 133.2 61.7 15.1% 2.7 -2.7 n/a   40.0 kts
20251013T065423 ssmis18_85 222.0 106.2 NaN% NaN NaN n/a   40.8 kts
20251014T063940 ssmis18_85 321.9 145.1 NaN% NaN NaN n/a   48.9 kts
20251014T093544 ssmis17_85 99.9 39.5 0.0% 3.5 -3.5 n/a   44.0 kts
20251014T160038 amsr2_85 210.9 100.6 0.0% 5.7 -5.7 n/a   36.7 kts
20251014T161326 gmi_85 111.0 50.6 0.0% 5.2 -5.2 n/a   36.5 kts
20251015T053327 gmi_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20251015T152827 gmi_85 66.6 28.4 0.0% 4.4 -4.4 n/a   35.0 kts
20251015T203458 ssmis17_85 122.1 56.1 6.8% 3.2 -3.2 n/a   35.0 kts
20251016T045327 gmi_85 88.8 39.5 16.4% 6.4 -6.4 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).