Genesis 7:11-13

On the 17th day of the second month, when Noah was 600 years old, the springs under the earth broke through the ground, and water flowed out everywhere. The sky also opened like windows and rain poured down. The rain fell on the earth for 40 days and 40 nights. That same day Noah went into the boat with his wife, his sons Shem, Ham, and Japheth, and their wives.