Snowing NIMBOSTRATUS (LOW) Photo taken by Lin Chambers at NASA Langley on February 27, 2002 during a late-season snow. Note the extremely uniform and featureless nimbostratus cloud which is dropping snow on the ground. Nimbostratus clouds are very difficult to photograph, because they are very uniform and offer little contrast. Generally nimbostratus clouds form rain, but snow is somewhat more photogenic.
NIMBOSTRATUS CLOUDS belong to the Low Cloud (surface to up) group. They are dark gray with a ragged base. Nimbostratus clouds are associated with continuous rain or snow. Sometimes they cover the whole sky and you can't see the edges of the cloud.
Captivating Clouds (2): Nimbostratus Cloud (rain-layered):The Nimbostratus clouds are almost always an indication of rain.They're grey and foggy-like withoutanydistinct shape or form. They also can be seen hanging very low to the ground and covering most of the sky. If you catch yourself under a blanket of this type of cloud, be sure to have an umbrella athand.