Perhaps the cloud-bank recalled to him the waterspout in which the "Albatross" had so nearly been destroyed, or the mighty cyclone from which he had escaped only as if by a miracle above the Antarctic Sea.
It is true that the forces of Nature which had been too strong for the "Albatross," might easily be evaded by this lighter and more versatile machine.

It could abandon the sky where the elements were in battle and descend to the surface of the sea; and if the waves beat against it there too heavily, it could always find calm in the tranquil depths.
Doubtless, however, there were some signs by which Robur, who must be experienced in judging, decided that the storm would not burst until the next day.
He continued his flight; and in the afternoon, when we settled down upon the surface of the sea, there was not a sign of bad weather.

The "Terror" is a sea bird, an albatross or frigate-bird, which can rest at will upon the waves! Only we have this advantage, that fatigue has never any hold upon this metal organism, driven by the inexhaustible electricity! The whole vast ocean around us was empty.

Not a sail nor a trail of smoke was visible even on the limits of the horizon.

Hence our passage through the clouds had not been seen and signaled ahead.
The afternoon was not marked by any incident.