cirrocumulus cloud; mackerel sky
A pattern of small, rippled clouds resembling fish scales; often associated with changing weather. Synonymous with うろこ雲 (scaly cloud).
See also: うろこ雲
Cirrocumulus clouds are spreading across the autumn sky.
When mackerel sky appears, the weather often turns bad.
Standard kanji spelling; literally 'sardine cloud'.
Mixed kanji-kana spelling; easier to read than the full kanji form.
Compound of 鰯 (いわし, 'sardine') + 雲 (くも, 'cloud'), from the resemblance of the cloud pattern to a school of sardines.