That's the hard science. There's going to be the day. It's already happening. The magnetic field is degenerating. That means magma is going to start welling up under the oceans. It's already happening because it's heating the oceans up.
When the oceans start heating up, that means more evaporation. When that happens at the same time that the planet is being clouded by volcanic eruptions, which is cooling the atmosphere, you have precipitation that comes down as snow.
The geological record shows that the onset of every ice-age was so sudden as to be unbelievable. In other words, next winter could be the winter when a lot of undersea volcanoes begin to erupt and dump magma into the oceans. A lot of evaporation takes place.
If it happens in the winter time that means that snow can fall in amounts that are beyond your wildest imagining. It's happened! It's geologically a fact. It's happened repeatedly. Can you imagine 9 stories of snow in a single day?
"Regarding the alleged Flood of Noah, we can say that at more than one point in our known history, civilizations and cultures have collapsed and/or disappeared or been destroyed by no-one-knows-what...
Researchers in the fields of archaeology and history are baffled by the lack of any direct archaeological or written explanations for the causes (as opposed to the effects), though there is a rich body of myth and folklore that very well might provide the answers if analyzed correctly...
Some decades ago, certain natural scientists became intrigued by the problem and, concentrating on the Bronze Age collapses listed above, realized that the range of evidence suggested natural causes rather than human actions like invasion or warfare. So, they all started talking about climate change, volcanic activity, and earthquakes. At present, these types of explanations are actually included in some of the standard historical accounts of the Bronze Age period, though many problems still remain: no single explanation appeared to account for all the evidence.
Immanuel Velikovsky upset everyone by suggesting that the Exodus - but only the Exodus - was caused by a bombardment of rocks, dust, carbons and so on as a result of Venus running amok in the Solar System. He collected an amazing assortment of myths and legends from around the world that strongly suggested that some sort of global cataclysm was being described, but when, where and how, exactly, it happened was rather iffy. There were others who wrote and talked about these matters before Velikovsky, including Ignatious Donnelly, who deserves an honorable mention for ascribing the myths to the Great Flood of Noah which he claimed was actually the destruction of Atlantis as described by Plato. Whether or not there was an advanced civilization known as Atlantis is not our concern here, but whether or not there was a flood, and when it may have occurred, is."