MACKEREL SKY • DICCIONARIO INGLES.COM • Definition of Mackerel sky

... character of the day changed. The sun set in a mackerel sky. A soft wind came moaning out of the Southwest, and drops of rain were borne on its edge. Darkness shut down close and heavy. No moon and no stars came out. The rain fell gently, softly, almost as if it were ...

— The Border Watch - A Story of the Great Chief's Last Stand • Joseph A. Altsheler

... fine sunset on the night Paul and Miss Trevor first met, and she had lingered on the headland beyond Noel's Cove to delight in it. The west was splendid in daffodil and rose; away to the north there was a mackerel sky of little fiery golden clouds; and across the water straight from Miss Trevor's feet ran a sparkling path of light to the sun, whose rim had just touched the throbbing edge of the purple sea. Off to the left were softly swelling violet hills and beyond the sandshore, ...

— Lucy Maud Montgomery Short Stories, 1909 to 1922 • Lucy Maud Montgomery