Cellpic Sunday: Mackerel Sky

Posted on September 27, 2026

A relatively unusual cloud formation: a mackerel sky, all the more impressive when seen with the sun down near the horizon.

Cellpic Sunday: A Mackerel Sky

Posted on September 14, 2025

A dramatic cloud formation from one morning earlier this week.

Posted on September 10, 2021

I took this photo from outside my front door at dusk one evening back in April this year. The exceptional mackerel sky was too dramatic to ignore.