Gen 7:11 In the six hundredth year of Noah’s life, in the second month, on the seventeenth day of the month, on that day all the fountains of the great deep burst forth, and the windows of the heavens were opened.
Gen 8:4 and in the seventh month, on the seventeenth day of the month, the ark came to rest on the mountains of Ararat.
None of such specific details fits into ANE.
Gen 6:14 Make yourself an ark of gopher wood. Make rooms in the ark, and cover it inside and out with pitch.
Gen 6:15 This is how you are to make it: the length of the ark 300 cubits, its breadth 50 cubits, and its height 30 cubits.
None of such specific details fits into ANE, secondly the description of the ark in v15 make the ark sea worthy, so I have read.
Gen 6:7 So the LORD said, “I will blot out man whom I have created from the face of the land, man and animals and creeping things and birds of the heavens, for I am sorry that I have made them.”
Gen 6:13 And God said to Noah, “I have determined to make an end of all flesh, for the earth is filled with violence through them. Behold, I will destroy them with the earth.
Gen 6:17 For behold, I will bring a flood of waters upon the earth to destroy all flesh in which is the breath of life under heaven. Everything that is on the earth shall die.
Gen 7:21 And all flesh died that moved on the earth, birds, livestock, beasts, all swarming creatures that swarm on the earth, and all mankind.
22 - Everything on the dry land in whose nostrils was the breath of life died.
23 - He blotted out every living thing that was on the face of the ground, man and animals and creeping things and birds of the heavens. They were blotted out from the earth. Only Noah was left, and those who were with him in the ark.
It’s obvious from the quoted verses the Lord God had every intention to kill every living creature on the whole earth.
Matt 24:37 For as were the days of Noah, so will be the coming of the Son of Man.
Matt 24:38 For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the ark,
Matt 24:39 and they were unaware until the flood came and swept them all away, so will be the coming of the Son of Man.
When Jesus spoke these words (as a warning) he referred to Scripture which no doubt was understood literally by the disciples, we are the only ones who have made it a discussion between global versus local.
Gen 6:3 Then the LORD said, “My Spirit shall not abide in man forever, for he is flesh: his days shall be 120 years.”
After the flood we see the ages of people rapidly decrease till 120 years, even for nowadays statistics this prophecy still holds, and none of such remarkable facts fits into ANE.