NET
24 And a great storm developed on the sea so that the waves began to swamp the boat. But he was asleep.
Darby
24 and behold, [the water] became very agitated on the sea, so that the ship was covered by the waves; but *he* slept.
KJV
24 And, behold, there arose a great tempest in the sea, insomuch that the ship was covered with the waves: but he was asleep.