Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20180423T124359 ssmis16_85 55.5 17.2 64.4% 0.0 -0.0 n/a   36.8 kts
20180423T144127 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   41.7 kts
20180423T220326 amsr2_85 55.5 22.8 100.0% 25.0 -40.0 n/a   56.8 kts
20180423T223412 ssmi15_85 55.5 22.8 100.0% 41.0 -56.0 n/a   57.6 kts
20180423T235619 ssmis16_85 44.4 17.2 100.0% 22.4 -37.4 n/a   59.9 kts
20180424T015640 gmi_85 55.5 22.8 100.0% 27.4 42.4 >65 kts   61.6 kts
20180424T023051 ssmis18_85 44.4 17.2 100.0% 31.7 46.7 >65 kts   62.1 kts
20180424T101351 amsr2_85 33.3 11.7 100.0% 26.1 41.0 >65 kts   61.5 kts
20180424T110522 ssmi15_85 88.8 11.7 58.9% 4.8 4.8 n/a   60.8 kts
20180424T122852 ssmis16_85 33.3 111.7 NaN% NaN NaN n/a   59.2 kts
20180424T142604 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   55.9 kts
20180424T210942 amsr2_85 244.2 161.8 NaN% NaN NaN n/a   42.1 kts
20180424T221947 ssmi15_85 310.8 161.8 NaN% NaN NaN n/a   39.2 kts
20180424T234444 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   35.6 kts
20180425T010139 gmi_85 222.0 161.8 NaN% NaN NaN n/a   35.0 kts
20180425T021933 ssmis18_85 244.2 117.3 NaN% NaN NaN n/a   35.0 kts
20180425T091740 amsr2_85 144.3 67.3 0.0% 0.0 -0.0 n/a   31.5 kts
20180425T104826 ssmi15_85 321.9 156.2 NaN% NaN NaN n/a   30.7 kts
20180425T121452 ssmis16_85 11.1 2.5 0.0% 0.0 -0.0 n/a   30.0 kts
20180425T142140 gmi_85 177.6 83.9 0.0% 3.0 -3.0 n/a   30.0 kts
20180425T144959 ssmis18_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).