Exodus 9:23

And Moses stretched forth his rod, his hand which held his shepherd's staff, toward heaven: and the Lord sent thunder and hail, He gave forth voices accompanied with hail, as a most powerful revelation of His divine omnipotence. And the fire ran along upon the ground in the form of ball lightning which is particularly destructive; and the Lord rained hail upon the land of Egypt. It is a sublime description of a thunderstorm accompanied with a terrific fall of hail, causing a devastation such as no ordinary storm will bring about.