§ Of Túrin Turambar The Silmarillion

But now in the dell beneath the Orcs were aroused, and all the camp was in a tumult; for they feared the thunder that came out of the west, believing that it was sent against them by the great Enemies beyond the Sea. Then a wind arose, and great rains fell, and torrents swept down from the heights of Taur-nu-Fuin; and though Gwindor cried out to Túrin, warning him of their utmost peril, he made no answer, but sat unmoving and unweeping in the tempest beside the body of Beleg Cúthalion.