Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130731T042248 tmi 5.0 0.0% 4.7 -4.7 n/a   30.0 kts
20130731T093051 ssmis16 323.5 NaN% NaN NaN n/a   33.1 kts
20130731T120233 ssmis18 223.5 NaN% NaN NaN n/a   35.0 kts
20130731T123455 tmi 23.4 6.8% 3.6 -3.6 n/a   35.0 kts
20130731T220626 ssmis16 212.4 0.0% 4.7 -4.7 n/a   35.0 kts
20130801T032642 tmi 12.2 16.4% 0.4 -0.4 n/a   35.0 kts
20130801T042547 ssmis16 267.9 NaN% NaN NaN n/a   35.0 kts
20130801T101421 ssmis17 245.7 15.1% 3.5 -3.5 n/a   38.2 kts
20130801T122838 ssmis18 323.5 NaN% NaN NaN n/a   40.4 kts
20130801T201709 ssmi15 323.5 NaN% NaN NaN n/a   45.0 kts
20130801T214826 ssmis16 201.2 27.3% 3.9 -3.9 n/a   45.0 kts
20130802T005631 ssmis18 301.3 NaN% NaN NaN n/a   46.0 kts
20130802T040856 tmi 56.7 24.7% 17.9 -17.9 n/a   56.6 kts
20130802T072908 ssmi15 78.9 17.8% 5.6 5.6 n/a   58.5 kts
20130802T083412 ssmis16 156.8 NaN% NaN NaN n/a   56.1 kts
20130802T101629 ssmis17 23.4 45.2% 4.4 4.4 n/a   52.0 kts
20130802T121727 ssmis18 56.7 17.8% 5.8 -5.8 n/a   50.0 kts
20130802T200036 ssmi15 145.7 43.8% 0.8 -0.8 n/a   50.0 kts
20130802T225220 ssmis17 12.2 58.9% 7.7 -7.7 n/a   50.0 kts
20130803T005033 ssmis18 34.5 94.5% 12.2 -27.2 n/a   49.8 kts
20130803T094458 ssmis17 23.4 0.0% 3.0 -3.0 n/a   40.6 kts
20130803T112233 tmi 23.4 4.1% 2.1 -2.1 n/a   38.4 kts
20130803T230715 ssmis16 23.4 NaN% NaN NaN n/a   25.2 kts
20130804T035322 tmi 12.2 0.0% 0.0 -0.0 n/a   21.4 kts
20130804T084013 ssmi15 201.2 NaN% NaN NaN n/a   20.0 kts
20130804T095104 ssmis16 156.8 NaN% NaN NaN n/a   20.0 kts
20130804T102530 tmi 212.4 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).