Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20140104T080154 tmi 145.7 9.6% 6.4 -6.4 n/a   35.0 kts
20140104T111051 ssmis16 112.3 1.4% 2.4 -2.4 n/a   35.0 kts
20140104T121200 ssmis17 145.7 5.5% 1.6 -1.6 n/a   35.0 kts
20140104T142400 ssmis18 156.8 4.1% 5.6 -5.6 n/a   36.8 kts
20140104T213406 ssmi15 101.2 0.0% 4.0 -4.0 n/a   40.0 kts
20140104T234934 ssmis16 167.9 1.4% 0.8 -0.8 n/a   40.0 kts
20140105T005051 ssmis17 101.2 2.7% 2.0 -2.0 n/a   40.0 kts
20140105T024639 ssmis18 167.9 NaN% NaN NaN n/a   40.0 kts
20140105T103418 ssmis16 156.8 NaN% NaN NaN n/a   35.7 kts
20140105T115228 ssmis17 190.1 4.1% 0.3 -0.3 n/a   35.0 kts
20140105T141159 ssmis18 112.3 0.0% 1.2 -1.2 n/a   35.0 kts
20140105T233654 ssmis16 145.7 0.0% 2.0 -2.0 n/a   34.5 kts
20140106T003745 ssmis17 123.4 0.0% 1.7 -1.7 n/a   34.1 kts
20140106T025110 ssmis18 212.4 6.8% 0.3 -0.3 n/a   32.7 kts
20140106T074726 tmi 145.7 0.0% 3.6 -3.6 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).