Yes, as this stated directly in Genesis 7:11, 8:2, and 'rbwt "window" is used elsewhere to refer to the windows of heaven (through which rain comes) in 2 Kings 7:2, 19, Isaiah 24:18 and Malachi 3:10. In almost all these texts, ptch "open" is used this word to refer to the opening of these heavenly windows. This notion is based on older Canaanite cosmology which also construed a heavenly deep whose windows were opened by Baal, the rain god, in his palace so that he could water the earth. The following text uses the exact same words as the biblical texts:
"Let a window ('urbt) be opened (yptch) in the house, a casement in the midst of the palace! Baal opened a rift in the clouds; his holy voice [i.e. thunder] Baal gave forth; Baal repeated the issue of his lips" (KTU 1.4 vii 25-39).
Another text, which has striking parallels to Psalm 29 (which depicts Yahweh as a rain god, who is "enthroned on the flood"), is the following:
"Baal sits like the base of a mountain, Hadad settles as the ocean, in the midst of his divine mountain, Saphon, in the midst of the mountain of victory. Seven lightning-flashes, eight bundles of thunder, a tree-of-lightning in his right hand. His head is magnificent, his brow is dew-drenched, his feet are eloquent in his wrath. His horn is exalted, his head is in the snows of heaven, with the god there is abounding water" (KTU 1.101 R 1-9).
See also the reference to the heavenly deep in Psalm 148:4. In the Canaanite texts, there is also a tradition about the creator god El ruling from his own holy mountain (Mount Hermon) which lies at the meeting-place of the heavenly deep and the subterranean deep under the mountain. This dwelling-place is a garden from which the rivers flow that irrigate all creation (cf. the source of the major rivers in the Garden of Eden in Genesis 2 and the location of Eden on the "mountain of God" in Ezekiel 28). This notion of the mountain being the meeting-place of the deeps is also found in the OT:
KTU 1.4 iv 20-24: "[Athirat] set her face towards El at the source of the rivers, at the midst of the springs of the two deeps. She rolled back the Tent of El, and came into the pavilion of the King, the Father of the Bright One".
KTU 1.100 R 3-4, V 60-64: "Shapsh, my mother, carry my voice to El at the source of the rivers, at the confluence of the two deeps (mbk nhrm b'dt thmtm)...[Horon] set his face towards the Tigris abounding in rain, and well-watered Tigris, he uprooted from among the trees the tamarisk, and from among the shrubs the tree of death".
Psalm 42:4-7: "I am on my way to the wonderful Tent, to the House of God, among cries of joy and praise and an exultant throng. Why so downcast, my soul, why do you sigh within me? Put your hope in God, I shall praise him yet, my savior, my God. When my soul is downcast within me, I think of you; from the land of Jordan and in Hermon, in Mount Misar, deep is calling to deep (thwm-'l-thwm qwr') as your cataracts roar".
Ezekiel 28:2, 13-14: "You say, 'I am El ('l) in the dwelling of the gods ('lhym); I dwell in the midst of the seas (ymym)'...You were in Eden in the garden of God ... you were on the holy mountain of the gods ('lhym)".
The Quran (Sura 18:60) also refers to a cosmological "junction of the two seas" (majma'a albahrayni) at the extremity of the world. This mythological motif of the cosmic mountain is found in post-exilic writings regarding Mount Zion which would be the source of "living water" to water all creation (cf. Psalm 87:1-7; Ezekiel 47:1-22; Joel 4:18; Zechariah 14:8, 1 Enoch 26:1-2, Revelation 20-22), and in later Jewish tradition, the foundation for the Temple was believed to have kept the subterranean floods at bay; it was said to be the stone on which the world is based (Yoma 54b).
As for the heavenly waters, this notion is elaborated in the apocalyptic tradition. The Book of Watchers (third century BC) for instance locates the waters as above the cosmic mountain:
"And they [angels] lifted me up into one place where there were the ones like the flaming fire. And when they so desire they appear like men. And they took me into a place of whirlwind in the mountain; the top of its summit was reaching into heaven. And I saw chambers of light and thunder in the ultimate end of the depth toward the place where the bow, the arrow, and their quiver and a fiery sword and all the lightnings were. And they lifted me up unto the waters of life, unto the western fire which receives every setting of the sun" (1 Enoch 17:1-4).
"From there I went in the direction of the north, to the extreme ends of the earth ... There I saw three open gates of heaven; when it blows cold, hail, frost, snow, dew, and rain, through each one of the gates the winds proceed in the northwesterly direction" (1 Enoch 34:1-2).
In the Book of Luminaries, which may be even older (fourth-third century BC), we read similarly:
"And I saw the twelve wide openings in all the directions through which the winds come out and blow over the earth. Three of them are open in the forefront of the sky, three in the west, three in the right of the sky, and three on the left ... Out of the second gate, located directly in the center, proceed rain and fruitfulness together with dew" (1 Enoch 76:1-2, 6).
The much later 2 Enoch gives an explicit description of the heavenly ocean:
"They took me up onto their wings, and carried me up to the first heaven. And they put me down there. They led before my face the elders, the rulers of the stellar orders. And they showed me their movements and their aberrations from year to year. And they showed me in the light the angels who govern the stars, the heavenly constellations. And they showed me there a vast ocean, much bigger than the earthly ocean. And the angels were flying with their wings. And they showed me the treasuries of the snow and the cold, terrible angels are guarding the treasuries. And they showed me there those guarding the treasuries and they showed me the treasuries of the clouds, from which they go in and come out. And they showed me the treasuries of the dew, like olive oil" (2 Enoch 3:1-6:1).
In 3 Baruch the heavenly ocean is instead located in third heaven, where it is a lake (= the Greek Acherusian Lake?) at "a very wide mountain", and the lake's waters are "that which the clouds receive to send as rain upon the earth" (3 Baruch 10:6).