Sentences with phrase «snow crystals form»

When cold temperatures and high humidity levels combine in the atmosphere, snow crystals form.

Each snow crystal forms when water vapor in the clouds condenses into ice.

Not exact matches

As long as they don't form ice crystals, these clouds won't shed more than a few flakes of snow over the Sierras» 13,000 - foot peaks.

That frozen vapor quickly forms ice crystals that drop out of the cloud as snow.

Depth hoar crystals are formed at the base of a snowpack when water vapor sublimates onto existing snow crystals.

A well - formed dendritic snow crystal (like that shown in the first illustration) has six main arms that are 60 degrees apart, branches at 60 degrees from each arm and, sometimes, smaller branches on those branches.

Hence, the clouds that form at colder temperatures — if any form at all — contain much less suspended water in the form of ice crystals, the starting sites for snow crystal formation.

When the snow gets packed down by subsequent layers, the space between the crystals is eventually sealed off, trapping a small sample of the atmosphere in newly formed ice.

Consequently in her Human Snow Crystal, appears a human form juxtaposed upon a cut out of a snowflake.

When the snow gets packed down by subsequent layers, the space between the crystals is eventually sealed off, trapping a small sample of the atmosphere in newly formed ice.

Once an ice crystal has formed, it absorbs and freezes additional water vapor from the surrounding air, growing into a snow crystal or snow pellet, which then falls to Earth.

The transition from snow to firn to ice occurs as the weight of overlying material causes the snow crystals to compress, deform and recrystalize in more compact form.