ANCHORAGE, Alaska (AP) — Three skiers are believed dead after an avalanche swept them away and buried them under a pile of snow nearly 10 stories deep in the Alaska backcountry. Each winter ...
Dry slab avalanches typically reach speeds up to 80 mph (129 kph) within seconds, according to the Sierra Avalanche Center. Wet avalanches usually travel around 20 mph (32 kph).
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