Are there areas of desert sands which experience blizzards?
It really depends on what you consider "desert sands".  For instance, Sand Mountain in Nevada https://en.wikipedia.org/wiki/Sand_Mountain_(Nevada) is an area of sand dunes in a desert, and occasionally experiences snowstorms that reach blizzard conditions.

Although most of the lower elevations are sagebrush steppe, there are other areas of sand (and dry lake beds &amp;c) in the Great Basin, and the area experiences winter cold, occasional snow, and high winds.  I'd expect similar conditions in the Gobi Desert, though I have no first-hand experience: https://en.wikipedia.org/wiki/Gobi_Desert