Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20210530T204223 amsr2_85 22.2 6.1 0.0% 5.1 -5.1 n/a   30.0 kts
20210530T225908 ssmis16_85 333.0 83.9 6.8% 4.4 -4.4 n/a   30.0 kts
20210530T231232 ssmi15_85 210.9 89.5 4.1% 0.9 -0.9 n/a   30.0 kts
20210531T012157 ssmis17_85 310.8 111.7 0.0% 4.1 -4.1 n/a   30.0 kts
20210531T113640 ssmis16_85 222.0 117.3 NaN% NaN NaN n/a   30.0 kts
20210531T114840 ssmi15_85 333.0 150.7 NaN% NaN NaN n/a   30.0 kts
20210531T135929 ssmis17_85 310.8 150.7 26.5% 3.5 -3.5 n/a   31.7 kts
20210531T225737 ssmi15_85 99.9 45.0 6.8% 5.8 -5.8 n/a   43.3 kts
20210531T234713 ssmis18_85 44.4 17.2 9.6% 13.4 -13.4 n/a   44.6 kts
20210601T112307 ssmis16_85 321.9 39.5 NaN% NaN NaN n/a   50.0 kts
20210601T113229 ssmi15_85 188.7 89.5 23.3% 11.4 -11.4 n/a   50.0 kts
20210601T122333 ssmis18_85 188.7 61.7 5.5% 1.5 -1.5 n/a   49.7 kts
20210601T134549 ssmis17_85 99.9 50.6 12.3% 2.1 -2.1 n/a   48.5 kts
20210601T203114 amsr2_85 166.5 95.1 16.4% 6.5 -6.5 n/a   45.0 kts
20210601T233456 ssmis18_85 66.6 45.0 19.2% 0.0 -0.0 n/a   45.0 kts
20210602T084437 amsr2_85 22.2 6.1 0.0% 3.0 -3.0 n/a   40.0 kts
20210602T121032 ssmis18_85 44.4 145.1 NaN% NaN NaN n/a   39.7 kts
20210602T211427 amsr2_85 66.6 28.4 0.0% 0.8 -0.8 n/a   30.0 kts
20210602T232227 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210603T000232 ssmis16_85 22.2 6.1 0.0% 2.7 -2.7 n/a   30.0 kts
20210603T022443 ssmis17_85 277.5 134.0 0.0% 2.5 -2.5 n/a   30.0 kts
20210603T092724 amsr2_85 166.5 78.4 2.7% 3.9 -3.9 n/a   30.0 kts
20210603T115758 ssmis18_85 210.9 128.4 NaN% NaN NaN n/a   30.0 kts
20210603T123758 ssmis16_85 144.3 72.8 16.4% 2.6 -2.6 n/a   30.0 kts
20210603T234933 ssmis16_85 122.1 56.1 0.0% 3.2 -3.2 n/a   25.1 kts
20210604T021119 ssmis17_85 111.0 50.6 0.0% 6.0 -6.0 n/a   25.0 kts
20210604T122450 ssmis16_85 33.3 11.7 0.0% 1.1 -1.1 n/a   25.0 kts
20210604T122544 ssmi15_85 22.2 6.1 0.0% 1.4 -1.4 n/a   25.0 kts
20210604T144629 ssmis17_85 33.3 11.7 0.0% 4.6 -4.6 n/a   25.0 kts
20210604T210226 amsr2_85 122.1 56.1 0.0% 5.8 -5.8 n/a   25.0 kts
20210604T233612 ssmi15_85 22.2 6.1 0.0% 2.5 -2.5 n/a   25.0 kts
20210604T233649 ssmis16_85 33.3 11.7 NaN% NaN NaN n/a   25.0 kts
20210605T003828 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20210605T015809 ssmis17_85 22.2 6.1 0.0% 0.0 -0.0 n/a   25.0 kts
20210605T091516 amsr2_85 233.1 111.7 NaN% NaN NaN n/a   25.0 kts
20210605T121205 ssmis16_85 321.9 156.2 NaN% NaN NaN n/a   24.9 kts
20210605T143318 ssmis17_85 22.2 6.1 0.0% 1.9 -1.9 n/a   23.9 kts
20210605T214526 amsr2_85 22.2 6.1 0.0% 1.8 -1.8 n/a   20.9 kts
20210606T002543 ssmis18_85 66.6 28.4 0.0% 2.6 -2.6 n/a   20.0 kts
20210606T130056 ssmis18_85 55.5 22.8 0.0% 0.4 -0.4 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).