Pointless to Warn

He is the One who enables you to travel across land and sea. When you sail with a favourable wind, rejoicing in it, suddenly a storm overtakes you, and waves engulf you from all sides. You call upon Allah in sincere devotion, saying, “If You save us, we will surely be grateful.”

10:22He it is Who maketh you to go on the land and the sea till, when ye are in the ships and they sail with them with a fair breeze and they are glad therein, a storm-wind reacheth them and the wave cometh unto them from every side and they deem that they are overwhelmed therein; (then) they cry unto Allah, making their faith pure for Him only: If Thou deliver us from this, we truly will be of the thankful.