Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20240920T175822 amsr2_85 77.7 33.9 5.5% 3.0 -3.0 n/a   25.0 kts
20240920T192156 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20240920T213801 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20240920T220452 ssmis17_85 55.5 128.4 NaN% NaN NaN n/a   25.0 kts
20240921T045531 amsr2_85 55.5 22.8 6.8% 4.0 -4.0 n/a   25.0 kts
20240921T092137 ssmis17_85 88.8 28.4 2.7% 2.8 -2.8 n/a   25.0 kts
20240921T210355 gmi_85 199.8 72.8 NaN% NaN NaN n/a   35.1 kts
20240922T053810 amsr2_85 22.2 161.8 NaN% NaN NaN n/a   25.9 kts
20240922T080606 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20240922T102232 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   24.2 kts
20240922T102855 gmi_85 333.0 161.8 NaN% NaN NaN n/a   24.2 kts
20240922T174617 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   20.1 kts
20240922T203600 ssmis18_85 288.6 139.5 NaN% NaN NaN n/a   18.9 kts
20240922T225216 ssmis16_85 33.3 11.7 0.0% 0.0 -0.0 n/a   18.0 kts
20240923T075239 ssmis18_85 233.1 111.7 NaN% NaN NaN n/a   15.0 kts
20240923T100904 ssmis16_85 222.0 106.2 0.0% 1.7 -1.7 n/a   15.0 kts
20240923T103457 ssmis17_85 122.1 56.1 NaN% NaN NaN n/a   15.0 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).