Translation of Genesis 7:11
In year 600 of years of the life of Noah, in 17th day of the month, in this day all springs of the great deep broke up and the window of the sky was opened.
Translation of Genesis 7:12
The rain on the Earth was 40 days and 40 nights.
Note that the life on the Earth was attacked from two distinct sources: "the great deep" (an underground store of water) and "the window of the sky" (something with the atmosphere).
Analyzing of information presented on this page is complete. That is, all variants of translation were considered carefully. No warranty however, that nothing is missing.