Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
19990914T082600 tmi_85 66.6 28.4 100.0% 31.4 46.4 >65 kts   87.0 kts
19990914T101700 ssmi11_85 555.0 67.3 NaN% NaN NaN n/a   88.6 kts
19990914T115500 ssmi14_85 66.6 28.4 8.2% 5.0 5.0 n/a   89.9 kts
19990914T204300 ssmi13_85 55.5 22.8 100.0% 37.5 52.5 >65 kts   97.3 kts
19990914T230700 tmi_85 77.7 28.4 67.1% 24.2 24.2 >65 kts   99.3 kts
19990915T091800 ssmi13_85 66.6 28.4 48.0% 20.0 20.0 n/a   112.7 kts
19990915T225700 ssmi11_85 44.4 17.2 100.0% 31.2 46.2 >65 kts   129.1 kts
19990915T232900 tmi_85 44.4 17.2 37.0% 20.9 20.9 >65 kts   129.6 kts
19990916T073400 tmi_85 77.7 33.9 100.0% 31.9 47.0 >65 kts   128.7 kts
19990916T113100 ssmi11_85 99.9 39.5 100.0% 33.6 48.6 >65 kts   125.4 kts
19990917T002400 ssmi14_85 99.9 45.0 37.0% 11.2 11.2 n/a   115.7 kts
19990917T111700 ssmi11_85 66.6 28.4 54.8% 20.4 20.4 >65 kts   125.0 kts
19990917T125800 ssmi14_85 77.7 33.9 100.0% 29.4 44.4 >65 kts   123.4 kts
19990917T214800 ssmi13_85 77.7 33.9 52.0% 20.1 20.1 >65 kts   111.8 kts
19990917T224100 tmi_85 88.8 39.5 64.4% 27.1 27.1 >65 kts   111.1 kts
19990918T001200 ssmi14_85 88.8 39.5 60.9% 16.5 16.5 n/a   109.8 kts
19990918T064500 tmi_85 555.0 39.5 100.0% 35.7 50.7 >65 kts   105.0 kts
19990918T102100 ssmi13_85 77.7 33.9 61.6% 26.2 26.2 >65 kts   105.0 kts
19990918T124400 ssmi14_85 77.7 33.9 49.3% 22.3 22.3 >65 kts   105.0 kts
19990918T213600 ssmi13_85 66.6 28.4 100.0% 32.5 47.5 >65 kts   108.0 kts
19990918T230500 tmi_85 66.6 28.4 100.0% 40.8 55.8 >65 kts   109.2 kts
19990919T000100 ssmi14_85 55.5 28.4 100.0% 42.9 57.9 >65 kts   110.0 kts
19990919T053200 tmi_85 66.6 28.4 100.0% 51.5 66.5 >85 kts# 114.6 kts
19990919T100800 ssmi13_85 66.6 28.4 23.3% 20.1 20.1 >65 kts   115.0 kts
19990919T212500 ssmi13_85 44.4 17.2 100.0% 23.4 38.4 >65 kts   115.0 kts
19990919T232800 tmi_85 555.0 17.2 100.0% 32.3 47.3 >65 kts   115.0 kts
19990920T041900 tmi_85 555.0 28.4 NaN% NaN NaN n/a   111.4 kts
19990920T095500 ssmi13_85 555.0 28.4 NaN% NaN NaN n/a   106.7 kts
19990920T121500 ssmi11_85 66.6 28.4 28.8% 4.9 4.9 n/a   104.8 kts
19990920T233300 ssmi11_85 199.8 95.1 38.4% 8.8 8.8 n/a   95.4 kts
19990920T235200 tmi_85 188.7 100.6 NaN% NaN NaN n/a   95.1 kts
19990921T030500 tmi_85 177.6 83.9 NaN% NaN NaN n/a   92.4 kts
19990921T134500 ssmi14_85 177.6 83.9 NaN% NaN NaN n/a   83.5 kts
19990922T001700 tmi_85 188.7 89.5 42.5% 4.5 4.5 n/a   75.0 kts
19990922T015300 tmi_85 188.7 89.5 41.1% 3.0 3.0 n/a   75.0 kts
19990922T133000 ssmi14_85 122.1 56.1 8.2% 3.4 3.4 n/a   68.8 kts
19990922T205200 ssmi13_85 388.5 50.6 20.6% 2.7 2.7 n/a   62.6 kts
19990922T230900 ssmi11_85 555.0 156.2 NaN% NaN NaN n/a   60.7 kts
19990923T112900 ssmi11_85 555.0 161.8 NaN% NaN NaN n/a   60.0 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).