Storm to warp one full house, almost? (3-4)

I believe the answer is:

two-pair

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'full house almost?' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'storm to warp one' is the wordplay.
'storm' indicates anagramming the letters.
'one' becomes 'i' (Roman numeral).
'to'+'warp'+'i'='towarpi'
'towarpi' anagrammed gives 'TWO-PAIR'.

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I've seen this clue in the Sydney Morning Herald.

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