The view behind them is blue sky and cirrus clouds.

Nothing to be seen but a few cirrus clouds, high up and moving fast.

And cirrus clouds may trap some warm air at night.

Cirrus clouds generally appear white or light grey in color.

He appears to be standing on the tops of cirrus clouds.

It was also determined that cirrus clouds formed in the area.

Cirrus clouds cover up to 25% of the Earth and have a net heating effect.

Alto cirrus clouds hung in the distance above the trees.

Cirrus clouds in long grey sheets began to fill the sky.

That long dark streak without any preceding cirrus clouds is a cold front.

The night was clear but high cirrus clouds presaged rain for later.

The decline was a result of a reduction in high altitude cirrus clouds.

Visual observations from aircraft or the ground provide additional information about cirrus clouds.

Cirrus clouds, because of their altitude, have been thought to be heat-trappers.

Together, at their maximum extent, the cirrus clouds covered nearly four million square miles of the earth's surface.

Overhead, cirrus clouds race across the sky, casting shadows on the ground.

It looked very distant- as far off as a cirrus cloud looks from earth.

But elsewhere the sky stood pale blue, with a few high cirrus clouds to catch sunlight.

His hair possessed the texture and color of cirrus clouds under bright sunlight.

The sky was now a deep violet, streaked by yellow cirrus clouds.

You'd settle into the stratosphere, home to icy cirrus clouds.

In winter, the cirrus cloud cover did not vary appreciably from day to night.

This, in turn, would increase the cirrus cloud cover, effectively creating a positive feedback circuit.

Cirrus clouds have been observed on several other planets.

He suggested this was due to a very dense, yellow lower atmosphere with high cirrus clouds above it.