Does the melee spell attack from Steel Wind Strike count as a weapon attack?

@JeremyECrawford @mikemearls does the melee spell attack from Steel Wind Strike count as a weapon attack? #sageadvice #dnd #dnd5e #xanatharsguidetoeverything

— Nerd Immersion (@nerdimmersion) December 21, 2017

An attack is either a weapon attack or a spell attack. It is never both, unless a rule makes an explicit exception. #DnD https://t.co/PiVNCB4vaa

— Jeremy Crawford (@JeremyECrawford) December 21, 2017