Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20240519T110948 ssmis18_85 11.1 161.8 NaN% NaN NaN n/a   35.0 kts
20240519T125246 ssmis17_85 277.5 134.0 NaN% NaN NaN n/a   35.0 kts
20240519T131056 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20240520T004355 gmi_85 288.6 139.5 NaN% NaN NaN n/a   32.2 kts
20240520T013732 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   31.8 kts
20240520T105605 ssmis18_85 122.1 56.1 0.0% 3.1 -3.1 n/a   28.9 kts
20240520T122355 gmi_85 199.8 95.1 NaN% NaN NaN n/a   28.1 kts
20240520T123843 ssmis17_85 210.9 100.6 NaN% NaN NaN n/a   28.0 kts
20240520T125708 ssmis16_85 188.7 89.5 2.7% 1.8 -1.8 n/a   27.8 kts
20240520T200412 amsr2_85 321.9 156.2 NaN% NaN NaN 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).