Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130510T091201 ssmi15 56.7 26.0% 0.0 -0.0 n/a   35.0 kts
20130510T113129 ssmis17 45.6 27.4% 0.3 -0.3 n/a   35.0 kts
20130510T135552 ssmis18 23.4 50.7% 1.6 -1.6 n/a   35.0 kts
20130510T225308 ssmis16 212.4 NaN% NaN NaN n/a   38.9 kts
20130511T001219 ssmis17 12.2 75.3% 0.0 -0.0 n/a   40.2 kts
20130511T084636 tmi 23.4 83.6% 0.0 -0.0 n/a   47.9 kts
20130511T085711 ssmi15 12.2 76.7% 0.0 -0.0 n/a   48.1 kts
20130511T111936 ssmis17 56.7 0.0% 3.6 -3.6 n/a   49.9 kts
20130511T114138 ssmis16 90.1 60.3% 0.0 -0.0 n/a   50.0 kts
20130511T132734 ssmis18 190.1 NaN% NaN NaN n/a   50.0 kts
20130511T213504 ssmi15 167.9 0.0% 5.9 -5.9 n/a   50.0 kts
20130511T215857 tmi 90.1 2.7% 4.9 -4.9 n/a   50.0 kts
20130512T023701 ssmis18 167.9 NaN% NaN NaN n/a   48.0 kts
20130512T075028 tmi 12.2 46.6% 3.7 -3.7 n/a   45.0 kts
20130512T112916 ssmis16 179.0 25.0% 2.6 -2.6 n/a   45.0 kts
20130512T134613 ssmis18 190.1 NaN% NaN NaN n/a   45.0 kts
20130512T211852 ssmi15 145.7 NaN% NaN NaN n/a   47.9 kts
20130512T234518 ssmis17 112.3 0.0% 1.2 -1.2 n/a   50.0 kts
20130512T234945 ssmis16 23.4 0.0% 1.4 -1.4 n/a   50.0 kts
20130513T022421 ssmis18 12.2 0.0% 0.3 -0.3 n/a   50.0 kts
20130513T065413 tmi 5.0 0.0% 0.0 -0.0 n/a   50.0 kts
20130513T111709 ssmis16 212.4 12.3% 5.0 -5.0 n/a   50.0 kts
20130513T214332 tmi 101.2 24.7% 2.2 -2.2 n/a   50.0 kts
20130513T234609 ssmis16 212.4 11.0% 2.4 -2.4 n/a   50.0 kts
20130514T021151 ssmis18 201.2 11.0% 5.8 -5.8 n/a   48.5 kts
20130514T095305 ssmi15 145.7 NaN% NaN NaN n/a   45.0 kts
20130514T103317 ssmis16 45.6 54.9% 0.7 -0.7 n/a   45.0 kts
20130514T115257 ssmis17 212.4 NaN% NaN NaN n/a   45.0 kts
20130514T204845 tmi 5.0 NaN% NaN NaN n/a   45.0 kts
20130514T234008 ssmis16 134.5 NaN% NaN NaN n/a   45.0 kts
20130515T015847 ssmis18 112.3 8.2% 4.6 -4.6 n/a   45.0 kts
20130515T093816 ssmi15 212.4 4.1% 4.4 -4.4 n/a   45.0 kts
20130515T101715 ssmis16 190.1 8.2% 4.0 -4.0 n/a   45.0 kts
20130515T121157 ssmis17 212.4 NaN% NaN NaN n/a   45.0 kts
20130515T213205 tmi 212.4 NaN% NaN NaN n/a   50.0 kts
20130515T232615 ssmis16 90.1 0.0% 3.9 -3.9 n/a   50.0 kts
20130516T012704 ssmis18 212.4 NaN% NaN NaN n/a   49.3 kts
20130516T040523 tmi 112.3 6.9% 2.2 -2.2 n/a   46.2 kts
20130516T092405 ssmi15 56.7 0.0% 2.6 -2.6 n/a   45.0 kts
20130516T104139 ssmis16 90.1 0.0% 0.0 -0.0 n/a   44.4 kts
20130516T203803 tmi 145.7 0.0% 2.4 -2.4 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).