what clouds are sometimes called mare's tail clouds
In the past, people looked at weather and related it to something in their lives. For instance, cloud types are often described by their shapes in the sky. The mareâs tails are wispy cirrus clouds while the mackerel scales are small clumpy altocumulus clouds resembling fish scales in the sky. In the days of large sailing ships, this meant a storm would be approaching soon and the sails should be lowered to protect from the accompanying high winds.