An Etymological Dictionary of the German Language/Windsbraut
Windsbraut, f., ‘hurricane, tornado,’ from the equiv. MidHG. windes brût, OHG. wintes brût, f.; a remarkable formation, which is usually referred to mythological ideas. Yet OHG. and MidHG. brût in this compound might be cognate with MidHG. brûs, ModHG. Braus, if this were connected with pre-Teut. bhrût-to-.