Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20211203T071525 amsr2_85 144.3 161.8 NaN% NaN NaN n/a   35.0 kts
20211203T110233 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20211203T223019 gmi_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20211203T233817 ssmis16_85 310.8 2.5 0.0% 0.8 -0.8 n/a   35.0 kts
20211204T004544 ssmis17_85 33.3 117.3 NaN% NaN NaN n/a   34.4 kts
20211204T075842 amsr2_85 155.4 72.8 9.6% 0.0 -0.0 n/a   30.0 kts
20211204T095518 gmi_85 222.0 106.2 NaN% NaN NaN n/a   30.0 kts
20211204T105002 ssmis16_85 111.0 134.0 NaN% NaN NaN n/a   30.0 kts
20211204T105711 ssmis18_85 333.0 134.0 NaN% NaN NaN n/a   30.0 kts
20211204T201056 amsr2_85 255.3 122.9 6.3% 3.7 -3.7 n/a   30.0 kts
20211204T232430 ssmis16_85 155.4 95.1 8.2% 3.3 -3.3 n/a   30.0 kts
20211205T003125 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20211205T090018 gmi_85 55.5 22.8 22.1% 5.7 -5.7 n/a   28.7 kts
20211205T103757 ssmis16_85 299.7 145.1 NaN% NaN NaN n/a   28.1 kts
20211205T104445 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   28.0 kts
20211205T222018 gmi_85 133.2 61.7 NaN% NaN NaN n/a   23.2 kts
20211205T231016 ssmis16_85 188.7 89.5 NaN% NaN NaN n/a   22.8 kts
20211206T074758 amsr2_85 144.3 67.3 NaN% NaN NaN n/a   20.0 kts
20211206T102530 ssmis16_85 310.8 150.7 NaN% NaN NaN n/a   20.0 kts
20211206T103309 ssmis18_85 155.4 72.8 NaN% NaN NaN n/a   20.0 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).