Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20140310T080251 ssmis17 NaN 27.4% 0.0 -920.0 n/a   35.0 kts
20140310T162310 ssmi15 34.5 80.8% 0.0 -0.0 n/a   35.0 kts
20140310T182039 ssmis16 23.4 86.3% 1.8 -16.8 n/a   35.0 kts
20140310T191634 ssmis17 23.4 60.3% 3.9 -3.9 n/a   34.7 kts
20140311T045522 ssmi15 34.5 0.0% 4.7 -4.7 n/a   25.2 kts
20140311T065409 ssmis16 12.2 12.3% 4.0 -4.0 n/a   25.0 kts
20140311T072652 ssmis17 212.4 NaN% NaN NaN n/a   25.0 kts
20140311T180703 ssmis16 156.8 0.0% 2.7 -2.7 n/a   25.0 kts
20140311T220548 ssmis18 56.7 NaN% NaN NaN n/a   25.0 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).