Cirrus uncinus clouds
Cirrus uncinus clouds. Grahamstown, Eastern Cape, South Africa. Occur between heights of 5 to 13 km at temperatures below -25 degrees Celsius. Caused by layers of air moving in different directions or at different speeds. Indicate approach of unsettled weather
Picture No
10868918
Media ID
42955310
Size
2592px x 3872px
(969KB)
Credit
© Alan J. S. Weaving / www.ardea.com
Category
NA
Ardea Picture Library
Picture No
10868918
Contributor Ref
ASW-4679
