NWS Portland on Twitter: "More Altocumulus (AC) fun this evening. What species of AC are we looking at? A. Stratiformis B. Lenticularis C. Castellanus D. Floccus hint: it helps to know a
Altocumulus cloud hunting with Krissy P! - YouTube
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19 Altocumulus Ac Images, Stock Photos & Vectors | Shutterstock
NWS JetStream - Ten Basic Clouds
Altocumulus perlucidus (Ac pe) | International Cloud Atlas
Altocumulus undulatus cloud - Wikipedia
Altocumulus ( Ac Stock Photo - Alamy
Altocumulus (Ac)
Altocumulus undulatus (Ac un) | International Cloud Atlas