Hales, 28, almost equalled Chris Gayle’s fastest-ever T20 century, which came off 30 deliveries, but top-edged James Weighell towards the wicketkeeper.
Brydon Carse’s fifth over selected 27 each side from the rain delay, before Hales struck three sixes and 2 fours as 28 runs came off spinner Ryan Pringle’s sixth.
The Outlaws, who now sit the surface of the group, had raced to 55- off 4.1 overs whenever a heavy rain shower forced players off.
Hales later stated “he was considering Gayle’s fastest T20 record” throughout his innings.
Within the other North Group game, Ben Duckett hit an unbeaten 92 for Northants within their 24-run victory against Worcestershire at New Road.
Nottinghamshire’s 106 runs within the Powerplay overtook the prior better of 105- produced by Kolkata Dark night Riders against Royal Challengers Bangalore within the IPL captured.