Not a biblical literalist (am a Christian Agnostic) but do believe there was a global flood and that some people in cultures throughout the world may have had premonitions of it. There are flood myths in cultures throughout the world and on nearly every continent, some of the mythologies include accounts of ancient peoples receiving premonitions to build boats to save people and animals.
Some flood mythologies also include accounts of fire from the skies along with the rain. If the Younger Dryas impact hypothesis proves true, a comet impact would explain why some initially saw fire followed by extensive flooding. The comet would've fractured upon entering the earth's atmosphere (fire in the sky) and caused massive tidal waves when parts hit the seas. A lot of water would've vaporized from the heat of the comet fragments upon oceanic impact which condensesd back into rains causing massive flooding.
What is firmly accepted is the Younger Dryas dramatic climate change did occur circa 12,900 to 11,700 BC. The comet impact hypothesis as the cause was dismissed by some scientists at it's proposal in 2007, but since then geologic evidence consistent with a comet impact such as magnetic grains of iridium, magnetic microspherules, elevated levels of charcoal soot, carbon spherules, glass-like carbon containing nanodiamonds, and carbon fullerenes with extraterrestial helium peaking at the beginning of the Younger Dryas climate shift are lending more credence to the theory.
If the biblical Noah built his boat and saved his family and animal breeding pairs during a Younger Dryas impact, he missed a few spcecies since around 33 genre of large mammels known as megafauna went extinct during this time such as mammoths, mastadons and giant ground sloths ...maybe the ark wasn't quite big enough
