Morrow capped a 13-play, 80-yard drive that took more than 7 minutes off the clock with a 10-yard touchdown run that gave the Rams their first lead with 1:28 to play.
Clay Millen completed 17 of 24 passes for 177 yards and added 53 yards rushing on 12 carries for Colorado State (2-5, 2-1 Mountain West).
Matthew Shipley opened the scoring with a 27-yard field goal about 5 minutes into the game and Brayden Schrager threw a 1-yard touchdown pass to Caleb Phillips midway through the second quarter before Shipley kicked a 23-yarder as time expired to give Hawaii (2-6, 1-2) a 13-3 lead at halftime.
The Rams took the opening kickoff of the second half and Morrow's 1-yard touchdown run about 5 minutes later trimmed Colorado State's deficit to 13-10.
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