Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20140309T064425 ssmis16 34.5 27.4% 2.1 -2.1 n/a   35.0 kts
20140309T080002 tmi 12.2 15.1% 0.0 -0.0 n/a   35.0 kts
20140309T081029 ssmis17 12.2 0.0% 0.0 -0.0 n/a   35.0 kts
20140309T222946 ssmis18 179.0 7.8% 0.0 -0.0 n/a   35.0 kts
20140310T064300 ssmis16 12.2 NaN% NaN NaN n/a   35.0 kts
20140310T070421 tmi 12.2 32.9% 0.0 -0.0 n/a   35.0 kts
20140310T105615 ssmis18 78.9 12.5% 0.0 -0.0 n/a   35.0 kts
20140310T215559 tmi 5.0 0.0% 0.0 -0.0 n/a   35.0 kts
20140310T221750 ssmis18 179.0 17.8% 4.0 -4.0 n/a   35.0 kts
20140311T060827 tmi 101.2 0.0% 1.7 -1.7 n/a   33.6 kts
20140311T103436 ssmis18 190.1 0.0% 0.0 -0.0 n/a   27.6 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).