so...that vs such...that

So–that vs. Such–that

SO [ADVERB / ADJECTIVE]  THAT
So is paired with that + a clause to express emphasis. So, a degree adverb, modifies or intensifies an adjective or adverb in the main clause.This expression is followed by a subordinated clause (that + clause) which expresses a surprising or remarkable effect.  (Note that may be omitted, and very cannot be used in place of so.)
CAUSE	EFFECT
The meteor storm was so beautiful	that we watched it all night.
The meteor storm passed so quickly	that it went by in one week.

SUCH ADJECTIVE  NOUN  THAT
Such is part of an adjective phrase [such + (determiner) + adjective] which modifies a noun phrase. This expression is followed by a subordinated clause (that + clause) which expresses a surprising or remarkable effect. (Such is one of the few adjectives that occurs before the article of the noun.¹)
CAUSE	EFFECT
It was [such a beautiful] meteor storm	that we watched it all night.
It was such a quick meteor storm	that it passed by in one week.
It was such an amazing sight	that we'll never forget it.