MT. SHASTA, Cal. -- At 3:40 PM on Monday, a large avalanche occurred on Mt. Shasta along the road under Bunny Flat, starting at an elevation of 6,900 feet. The avalanche ran 150 feet along the slope and averaged 19 inches thick. It covered one lane of the road below with 8 feet of snow.
This was a wet slab avalanche where one cohesive slab of snow slides down the slope. This was due to recent warming temperatures and water trickling down through the melting snow allowing the slab of snow to release. Wet slab avalanches are rare and hard to predict. They occur during periods of rapid warming, which cause underlying bonds to weaken.
Here's a look at photos provided by the Mount Shasta Avalanche Center.
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