Snow on snow

Here is William Diaper in 1722, translating Oppian’s Halieuticks (a Greek epic poem on the loves of the fishes):

As when soft Snows, brought down by
Western Gales,
Silent descend and spread on all the Vales . . .
Nature bears all one Face, looks coldly bright,
And mourns her lost Variety in White.
Unlike themselves the Objects glare around,
And with false Rays the dazzled Sight
confound.