Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130901T185131 ssmi15 12.2 21.9% 2.7 -2.7 n/a   30.8 kts
20130901T190322 tmi 45.6 26.0% 7.4 -7.4 n/a   31.0 kts
20130901T212538 ssmis17 145.7 19.2% 3.7 -3.7 n/a   33.6 kts
20130901T234539 ssmis18 112.3 21.9% 1.1 -1.1 n/a   35.0 kts
20130902T060810 ssmi15 167.9 NaN% NaN NaN n/a   35.0 kts
20130902T080325 ssmis17 34.5 43.8% 3.9 -3.9 n/a   35.0 kts
20130902T110404 ssmis18 201.2 NaN% NaN NaN n/a   35.0 kts
20130902T113600 tmi 34.5 15.1% 0.4 -0.4 n/a   35.0 kts
20130902T180806 tmi 212.4 NaN% NaN NaN n/a   40.2 kts
20130902T211200 ssmis17 134.5 37.0% 4.8 -4.8 n/a   46.3 kts
20130902T233241 ssmis18 56.7 42.5% 3.5 -3.5 n/a   49.9 kts
20130903T083122 ssmis17 56.7 43.8% 10.6 -10.6 n/a   46.9 kts
20130903T105222 ssmis18 123.4 53.4% 2.9 -2.9 n/a   49.5 kts
20130903T121909 tmi 134.5 52.0% 5.2 -5.2 n/a   50.0 kts
20130903T153456 tmi 56.7 35.6% 7.6 -7.6 n/a   47.5 kts
20130903T205809 ssmis17 90.1 NaN% NaN NaN n/a   41.9 kts
20130903T231933 ssmis18 179.0 0.0% 8.8 -8.8 n/a   40.1 kts
20130904T054032 ssmi15 123.4 0.0% 3.0 -3.0 n/a   37.9 kts
20130904T073203 ssmis17 5.0 0.0% 1.1 -1.1 n/a   34.9 kts
20130904T104040 ssmis18 234.6 0.0% 10.8 -10.8 n/a   30.6 kts
20130904T112443 tmi 223.5 0.0% 10.0 -10.0 n/a   30.1 kts
20130904T130237 tmi 101.2 0.0% 1.4 -1.4 n/a   30.0 kts
20130904T144035 tmi 34.5 0.0% 1.2 -1.2 n/a   30.0 kts
20130904T204402 ssmis17 145.7 0.0% 3.1 -3.1 n/a   30.0 kts
20130904T225832 ssmis18 323.5 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).