Abstract
The world-wide flood recounted in Genesis has no parallel in today's world. Yet, few serious attempts have been made in the past to explore the meteorology of the flood and the atmosphere of the antediluvian world. Several advances have recently been made in developing atmospheric models and comparing model predictions with observations. These attempts to understand what the atmosphere (firmament) was like before and during the flood help us to realize that, indeed, "The Sky has Fallen."