Top Definition
A weak layer is used to describe a layer of snow within the snowpack that may be prone to causing a snow avalanche.

Weak layers are caused by changes in snow pack's temperature, snow crystal type and snow crystal deformation resulting from changes in atmospheric conditions and moisture content.
We dug a snow pit on Pucker Face and found a really weak layer that is sure to rip a avalanche on the next bone head who tries to ski it.
by The Snow Prophet May 12, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt