Cumulonimbus cloud, with towering anvil head and rain storm, over San Francisco Bay, California, USA. Cumulonimbus clouds form when atmospheric instabilities allow strong updrafts of warm, moist air to keep rising and condensing, up to altitudes of around ten kilometres. The end result is typically a storm with thunder and lightning. Photographed in mid-afternoon in November. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / STEPHEN BURT |
Bildgröße: | 5156 px × 3437 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |