1) Blizzard buildup 2) Drift 3) Winter pileup 4) Winter storm consequence 5) Wintry wind-driven pile 1) Colddeposit 
A snowdrift is a deposit of snow sculpted by wind into a mound during a snowstorm. Snowdrifts resemble sand dunes and are formed in a similar manner, namely, by wind moving light snow and depositing it when the wind has virtually stopped, usually against a stationary object. Snow normally crests and slopes off toward the surface on the windward si...
• (n.) A bank of drifted snow.
Snow'drift` noun A bank of drifted snow. 
[n] - a mass of snow heaped up by the wind
an accumulation or bank of snow formed when wind blows snow against an obstruction; often considerably thicker than the surrounding snowcover.
noun a mass of snow heaped up by the wind