This basic storyline is about a group of friends and strangers thrown together as they travel in a pouring rain. It is raining everywhere and there are no signs of it letting up. Unknown to the group one of their members knows exactly why it is raining and why it won't stop. He was part of a scientific team that pulled an ice asteroid into earth orbit and broke it into a million pieces to use it for energy or something, but they did not calculate correctly and now the ice is melting and flooding the earth on a biblical scale. It ends with the group on an island that used to be the top of an Appalachian Mountain. I think I read it in the late 70s it could be the early 80s. As I recall they were traveling in an RV and of course the Noah refernece is obvious but there was also and Adam and Eve repopulate the world kind of theme also.
'Zena and the boys went ice-ring planing, Boys fouled up and Earth got a raining!' Gus and Thatch were desperately trying to drive the big mobile home up into the mountains, high above the floods rapidly drowning out the rest of the world. They even had some crazy notion about saving civilization from the waters - which was why they took along uptight Zena - who knew far m 'Zena and the boys went ice-ring planing, Boys fouled up and Earth got a raining!' Gus and Thatch were desperately trying to drive the big mobile home up into the mountains, high above the floods rapidly drowning out the rest of the world. They even had some crazy notion about saving civilization from the waters - which was why they took along uptight Zena - who knew far more than she was telling about why that vast canopy of ice had suddenly surrounded Earth - and voluptuous Gloria - who turned out sometimes to be a man and sometimes a woman as well. And then they picked up Karen, and Floy, and Dust Devil, and Foundling - two latterday Noahs in a motorized ark. The trouble was, their little community wasn't the only one frantically trying to find dry land, food and fuel. And seeing robbery, looting, murder and cannibalism were now looked on as legitimate means of survival, the struggle for life was apt to become a little vicious at times.  ...more