Bright—Dark.
If clouds be bright,
’Twill clear to-night;
If clouds be dark,
’Twill rain, do you hark?
Blue Sky.
Enough blue sky in the northwest to make a Scotchman a jacket is a sign of approaching clear weather.
Cirro-Cumuli.
When cirro-cumuli appear in winter expect warm and wet weather. When cirri threads are brushed back from a southerly direction expect rain and wind.
Cirri and Cumulus.