- Cloud types, Cb: this compact Cumulonimbus is the Calvus type
- W022811Z
- Cloud types, Cb: this compact Cumulonimbus cloud is a very intense, tornadic supercell. The extreme growth rate maintains a non-fibrous, cumuliform crown and top to the storm (Calvus type). The rock-hard cloud stands like a silvery monument in the clear blue heavens - a true testament to nature’s immense strength and beauty.
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