The cirrus clouds appear in well-organized lines.
The cirrus clouds merge into cirro-stratus.
The sky looks like fish scales, so-called mackerel sky.
Light scud drifts across the sky from east to west.
The summer cumulus clouds increase in size as the afternoon proceeds.
Walls grow damp, flies are more of a burden than usual, swallows fly low.
Smoke falls to the ground.
There have been three white frosts.
A halo appears around either the moon or sun.
When sun-dogs appear about the sun, denoting ice-particles in the air.