Altocumulus castellanus clouds over a rural scene. Altocumulus clouds occur at middle altitudes (2400-6000 metres). There are several types of altocumulus clouds. Altocumulus castellanus clouds indicate medium-level instability in the atmosphere and often precede thundery conditions. A thunderstorm occurred around three hours after this photograph was taken. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / STEPHEN BURT |
Bildgröße: | 5189 px × 3459 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |