Avalanche wind

From Glossary of Meteorology

avalanche wind

The rush of air produced in front of an avalanche of dry snow or in front of a landslide.

The most destructive form, the avalanche blast, occurs when an avalanche is stopped abruptly, as in the case of an almost vertical fall into a valley floor. Such blasts may have very erratic behavior, leveling one house without damaging its neighbor.

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