Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20250807T021121 ssmis17_85 11.1 2.5 0.0% 0.0 -0.0 n/a   35.0 kts
20250807T023348 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20250807T055826 gmi_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20250807T094242 amsr2_85 55.5 22.8 39.7% 0.0 -0.0 n/a   35.0 kts
20250807T114433 ssmis18_85 310.8 161.8 NaN% NaN NaN n/a   35.0 kts
20250808T051327 gmi_85 333.0 161.8 NaN% NaN NaN n/a   30.6 kts
20250808T164826 gmi_85 44.4 17.2 0.0% 2.7 -2.7 n/a   25.7 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).