Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20101005T061005 amsre NaN 0.0% 0.0 -0.0 n/a   30.0 kts
20101005T095152 ssmis17 NaN 26.5% 6.3 -6.3 n/a   30.0 kts
20101005T110035 ssmis16 NaN 0.0% 0.0 -0.0 n/a   30.0 kts
20101005T130222 ssmis18 NaN 19.2% 8.6 -8.6 n/a   30.0 kts
20101005T182111 amsre NaN 0.0% 6.2 -6.2 n/a   30.0 kts
20101005T222008 tmi NaN 0.0% 0.0 -0.0 n/a   25.9 kts
20101005T222444 ssmis17 NaN 31.5% 0.0 -0.0 n/a   25.9 kts
20101005T233137 ssmis16 NaN 17.8% 6.0 -6.0 n/a   25.1 kts
20101006T063114 tmi NaN 0.0% 0.0 -0.0 n/a   23.7 kts
20101006T093924 ssmis17 NaN 0.0% 0.0 -0.0 n/a   21.5 kts
20101006T100725 ssmis16 NaN 1.4% 3.9 -3.9 n/a   21.1 kts
20101006T123257 ssmis18 NaN 0.0% 0.0 -0.0 n/a   19.7 kts
20101006T220416 ssmis17 NaN 0.0% 0.0 -0.0 n/a   15.7 kts
20101006T232057 ssmis16 NaN 0.0% 0.0 -0.0 n/a   15.2 kts
20101007T012333 ssmis18 NaN 0.0% 0.0 -0.0 n/a   15.0 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.