Whatever questions Noah might have had, God made clear to Noah and his household that He had not forgotten them. God had not forgotten the covenant which He had said He would make with Noah (Genesis 6:18). Although God had displayed His wrath toward the pre-flood world, He had not forgotten His servant Noah.
Thus God acted. He sent a wind. The wind was the evidence that God had indeed remembered His servant. When the wind began to blow, the waters began to subside:
Also the fountains of the deep and the floodgates of the sky were closed, and the rain from the sky was restrained; and the water receded steadily from the earth, and at the end of one hundred and fifty days the water decreased. (Genesis 8:2-3)For over 110 days, Noah's household knew nothing about the height of the water. Since the water had risen far above the mountains, there was nothing to compare the height of the water to!
But then the 150th day came. Suddenly, the ark came to a stop. On day 150 of the flood (110 days after the 40 days of rain) the ark came to a rest (Genesis 8:4). It was in that moment that those on the ark must have truly been able to proclaim, "God has remembered us!" And indeed, God had remembered them. The wind, sent by God Himself, was just beginning to blow away the flooding judgment which fell upon the pre-flood world. And soon, very soon, the era of the pre-flood world would be complete.
State of the World (2349 BC): The Flood (Part 1) - Genesis 7:11
The Destruction of The City of Enoch (Part 1) - Genesis 7:17-18
God's Ark Which Noah Built - Genesis 6:14
Summary of Genesis 7