Friday 18 April 2008

Cloud Streets

Cloud streets are rows of cumulus clouds aligned parallel to the low-level wind. They are usually more or less straight, but rarely cloud streets assume paisley patterns when the wind driving the clouds encounters an obstacle.

Those cloud formations are known as von Kármán vortex streets. Although conventional cloud streets are clearly visible from the ground, large scale patterns such as these are seen best on satellite photographs.

0 comment(s):