Mammatus clouds. These pouch-shaped clouds usually form on the underside of large cumulonimbus thunderclouds. A well-developed mammatus formation may be a sign that a tornado is developing. The mammatus forms on the underside of the anvil of a thunderstorm,so can be quite distant from the centre of the storm. Photographed in New Mexico,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Jim Reed Photography |
Taille de l’image : | 5190 px × 3447 px |
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