Around Austin-The digital images somewhat capture the ceiling like blanket of the "Mackerel Sky" during the twilight hour Saturday November 17th 2026. Above the western sky in the Austin Hill Country 18:40. So called "Mackerel" in reference to the altocumulus or cirrocumulus clouds appearing in a "patchy, rippled or scaly pattern that resembles rthe scales of a fish..." (Google Gemini). See more below. The eastern sky.