ESO WEATHER WATCH: Cloudiness
Cloud Cover Category % Total cirrus cloud Fraction of sky that is clear
Clear < 25 ɬ.75
Mostly Clear 25-50 0.50-0.75
Mostly Cloudy 50-75 0.25-0.50
Cloudy ᢃ ɘ.25
Hit 92.2 (55.5) 88.8 (51.6)
Neutral 3.7 (22.6) 4.1 (19.3)
Miss 4.0 (22.8) 7.1 (29.1)
Satistics on all 24 hours periods 26/8-31/12 1998
A miss is when observation and forecast differ by more than 1 category