snowy vs snow-covered

snowy and snow-covered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
snowy	No	Yes	No	No
snow-covered	No	Yes	No	No

As adjectives, snowy and snow-covered are synonyms defined as:

Other synonyms of snowy include snow-clad.

snowy (adjective)	snow-covered (adjective)
of the white color of snow	covered with snow
covered with snow
marked by the presence of snow