Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20211010T054536 ssmis18_85 122.1 45.0 16.4% 2.4 -2.4 n/a   34.8 kts
20211010T055133 ssmis16_85 88.8 39.5 23.3% 2.0 -2.0 n/a   34.9 kts
20211010T072141 ssmis17_85 88.8 22.8 35.6% 4.1 -4.1 n/a   36.1 kts
20211010T100019 gmi_85 155.4 78.4 9.6% 4.0 -4.0 n/a   38.3 kts
20211010T181953 ssmis18_85 199.8 111.7 6.8% 3.8 -3.8 n/a   45.0 kts
20211010T182556 ssmis16_85 199.8 106.2 6.8% 2.8 -2.8 n/a   45.0 kts
20211010T195534 ssmis17_85 210.9 122.9 8.2% 3.2 -3.2 n/a   45.0 kts
20211011T053329 ssmis18_85 233.1 111.7 NaN% NaN NaN n/a   45.0 kts
20211011T053922 ssmis16_85 210.9 106.2 NaN% NaN NaN n/a   45.0 kts
20211011T180655 ssmis18_85 55.5 67.3 NaN% NaN NaN n/a   45.0 kts
20211011T181243 ssmis16_85 177.6 67.3 NaN% NaN NaN n/a   45.0 kts
20211011T203518 gmi_85 44.4 11.7 25.4% 5.5 -5.5 n/a   45.0 kts
20211012T095018 gmi_85 333.0 161.8 NaN% NaN NaN n/a   36.8 kts
20211012T175350 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20211012T210916 ssmis17_85 33.3 17.2 0.0% 3.6 -3.6 n/a   32.4 kts
20211013T082420 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 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).