storm cellar vs tornado cellar

storm cellar and tornado cellar both are nouns.

Word	Noun	Adjective	Verb	Adverb
storm cellar	Yes	No	No	No
tornado cellar	Yes	No	No	No

As nouns, storm cellar and tornado cellar are synonyms defined as:

storm cellar and tornado cellar: an underground shelter where you can go until a storm passes

Other synonyms of storm cellar include cyclone cellar.

storm cellar (noun)	tornado cellar (noun)
an underground shelter where you can go until a storm passes	an underground shelter where you can go until a storm passes