Altocumulus floccus clouds at sunset. Altocumulus clouds occur at middle altitudes (2400-6000 metres). There are several types of altocumulus clouds. Altocumulus floccus clouds often indicate medium-level instability in the atmosphere and frequently precede thundery conditions. A thunderstorm occurred two hours after this photograph was taken. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / STEPHEN BURT |
Taille de l’image : | 5472 px × 3648 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |