Sunset Over Old Barn Silo With Contrail Clouds And Sun Shadow Stock Photo

Nephology is the science of clouds, physics branch of meteorology.Undulatus clouds form perpendicular to the direction of the wind. More specifically, a lifting, large air mass spurs the formation of these clouds, which may be followed by condensation and possible instability. Also, pilots recognize undulatus clouds as a sign of wind shear and may create slight turbulence for a flight. Undulatus clouds similar to cloud streets. Undulatus clouds form perpendicular to the wind, while cloud streets form parallel to the wind. Or a Cirrus Uncinus cloud, Mares’ Tails, with a contrail. Contrails are a form of cirrus cloud, and if there is enough moisture in the air, a contrail will eventually spread to be indistingushable from the surrounding cirrus.