Verses 6-12 repeat for a second time and give more detail about how Noah went into the ark with his family and the animals in [Genesis 7:1-5](./01.md). This is not a new event.
Since Moses wrote this book, it is possible he is referring to the second month of the Hebrew calendar. But this is uncertain. (See: [[rc://en/ta/man/jit/translate-hebrewmonths]] and [[rc://en/ta/man/jit/translate-ordinal]])
This refers to rain. It describes the sky as a ceiling that keeps the waters above it from falling down to the earth. When the windows, or doors, in the sky were opened, the water came down through them. Alternate translation: "the sky opened" or "the doors in the sky opened"