The biblical flood narrative is basically two interwoven stories, which explains a fair bit about why it's difficult to read it as chronology and why there's so much repetition.
Quick example:
Gen 6:19 You are to bring into the ark
two of all living creatures, male and female, to keep them alive with you. 20
Two of every kind of bird, of every kind of animal and of every kind of creature that moves along the ground will come to you to be kept alive.
Gen 7:2 Take with you
seven pairs of every kind of clean animal, a male and its mate, and one pair of every kind of unclean animal, a male and its mate, 3 and also seven pairs of every kind of bird, male and female, to keep their various kinds alive throughout the earth.
So either these are two different narratives placed next to each other, or the guy writing genesis literally forgot how many pairs Noah was supposed to bring on the ark despite the verses being almost right on top of each other.
Later on, you get this bit.
Gen 8:3.... At the end of the hundred and fifty days the water had gone down, 4 and on the
seventeenth day of the seventh month the ark came to rest on the mountains of Ararat. 5 The waters continued to recede until the tenth month, and
on the first day of the tenth month the tops of the mountains became visible.
Clearly two different timelines in play here, or somehow the ark came to rest on the mountain 3 months prior to the mountain actually becoming uncovered by the receding water that's going....somewhere never addressed in the story.
Finally
Gen 8:6 After forty days Noah opened a window he had made in the ark 7 and sent out a raven, and it kept flying back and forth until the water had dried up from the earth. 8 Then he sent out a dove to see if the water had receded from the surface of the ground. 9
But the dove could find nowhere to perch because there was water over all the surface of the earth;
Again, this is just after the last verse about the ark resting on the mountain and the tops of the mountains now being visible. So either Noah is fucking blind(or drunk), there's a different narrative in play here, or the author just forgot that the earth is already visible in some way. The 2nd narrative makes the most sense unless you want to go with the "Noah is drunk on wood alcohol" theory if you try to read it literally and infer he's a
boozer from later on.
Thank you for attending my TED talk on ancient narrative structure.