Hunt pulled the strings as the Dragons established an early lead but as has been the case all season, the Dragons’ left-edge defence let them down.
Warbrick confirmed a hat-trick by catching a cut-out pass from Katoa and belting 30 metres down the right edge with a burst of speed.
Xavier Coates levelled the scores with a contender for try of the season.
He broke through the brittle Dragons’ frontline and bulldozed past fullback Tyrell Sloan on his way to a try from 65 metres.
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It was again down the right side that the Storm reclaimed the lead in the second half with a double to second-rower Katoa.
The hosts looked primed to draw level when Moses Suli’s offload sent Mikaele Ravalawa over in the final six minutes at 30-28.
But Ben Hunt, kicking in place of the injured Zac Lomax, missed his conversion attempt from the sideline.
It took the bounce of a ball, into the arms of Hughes, for the Storm to seal an unconvincing win.
AAP