Avalanche defined as a rapid snow mass flow down slopes.​Forms when weak layers collapse under slab weight.​Four types: slab, loose snow, wet snow, and glide avalanches.​Triggers include heavy snow, ...
SEATTLE — The Washington Cascades are among the snowiest places in the lower 48 states. All that snow, thousands and tons of it, is often perched atop steep mountainsides. When you add accumulating ...
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