Whumpf - a technical term in avalanche science referring to the collapsing failure of a weak layer in the snowpack - most often on flat terrain - that results in a sigh, hiss or "whumpf". The spelling has been roundly debated and alternates: whumph, whomp, wump, wumpf are in use.
Whumpf is the preferred spelling in the Operational Guidelines and Recording Standards for Snow and Avalanche Observations Canadian Avalanche Association, 2007.
Whumpf - a technical term in avalanche science referring to the collapsing failure of a weak layer in the snowpack - most often on flat terrain - that results in a sigh, hiss or "whumpf". The spelling has been roundly debated and alternates: whumph, whomp, wump, wumpf are in use.
Whumpf is the preferred spelling in the Operational Guidelines and Recording Standards for Snow and Avalanche Observations Canadian Avalanche Association, 2007.
:) Aww, you're too kind!
See also whomp.
According to some, the noise made by the wingbeats of the fell beasts ridden by the Nazgul in the Lord of the Rings movie.