Exodus 9:23

9:23 When Moses extended his staff toward the sky, the Lord sent thunder and hail, and fire fell to the earth; so the Lord caused hail to rain down on the land of Egypt.

Exodus 9:28-29

9:28 Pray to the Lord, for the mighty thunderings and hail are too much! I will release you and you will stay no longer.”

9:29 Moses said to him, “When I leave the city I will spread my hands to the Lord, the thunder will cease, and there will be no more hail, so that you may know that the earth belongs to the Lord.