Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20150401T191207 tmi 212.4 NaN% NaN NaN n/a   45.0 kts
20150402T063502 tmi 167.9 NaN% NaN NaN n/a   45.0 kts
20150403T051840 tmi 5.0 0.0% 3.2 -3.2 n/a   45.0 kts
20150403T181823 tmi 56.7 NaN% NaN NaN n/a   45.0 kts
20150404T040147 tmi 12.2 83.6% 0.0 -0.0 n/a   45.0 kts
20150405T172238 tmi 134.5 60.3% 17.3 -17.3 n/a   45.0 kts
20150405T205137 ssmi15 101.2 57.5% 11.0 -11.0 n/a   48.9 kts
20150405T223443 ssmis16 101.2 69.9% 10.3 -10.3 n/a   51.5 kts
20150406T114233 ssmis17 67.8 100.0% 54.1 69.1 >85 kts# 80.3 kts
20150406T131929 ssmis18 56.7 100.0% 49.7 64.7 >85 kts# 84.9 kts
20150406T203633 ssmi15 45.6 100.0% 42.4 57.4 >65 kts   98.2 kts
20150407T112245 ssmis17 212.4 NaN% NaN NaN n/a   98.0 kts
20150407T115525 ssmis19 212.4 NaN% NaN NaN n/a   96.7 kts
20150407T124428 ssmis18 NaN 75.3% 0.0 -920.0 n/a   94.6 kts
20150407T162650 tmi 34.5 89.0% 0.0 15.0 n/a   84.3 kts
20150407T202146 ssmi15 NaN 65.8% 0.0 -920.0 n/a   71.4 kts
20150408T002023 ssmis18 190.1 NaN% NaN NaN n/a   51.8 kts
20150408T110509 ssmis17 112.3 NaN% NaN NaN n/a   34.7 kts
20150408T114101 ssmis19 12.2 NaN% NaN NaN n/a   34.5 kts
20150408T125224 ssmis18 12.2 0.0% 0.4 -0.4 n/a   33.9 kts
20150408T200635 ssmi15 212.4 NaN% NaN NaN n/a   30.0 kts
20150408T223326 ssmis17 12.2 0.0% 8.0 -8.0 n/a   30.0 kts
20150408T225649 ssmis19 212.4 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).