How To Use Mackerel sky In A Sentence

• Sir John Herschel compared it to a surface studded over with flocks of wool, or to the breaking up of a mackerel sky when the clouds of which it consists begin to assume a cirrous appearance. The Astronomy of Milton's 'Paradise Lost'
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• a mackerel sky filled with rows of clouds
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• These were cirrocumulus undulatus, known as a mackerel sky. Times, Sunday Times
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