A sky dappled with rows of small white fleecy clouds, typically cirrocumulus, like the pattern on a mackerel’s back.
More example sentences
- Cirrocumulus is sometimes referred to as a mackerel sky because of the shapes it takes on.
- In 1895, Sidney O Addy explained this term in his book Household Tales: ‘Yorkshire farmers… call a sky which is flecked with many small clouds a ‘mackerel sky’: A mackerel sky / Is never long dry.’
- Coming home today, the most extraordinary sky appeared as we crested a hill and came out of the woods - a mackerel sky, pearly and lit softly from above and below.
Definition of mackerel sky in:
- The British & World English dictionary