What is noteworthy about this storm?

From the text:

It was, indeed, a stormy but beautiful night, and wildly strange. The heavy, low-hanging clouds which seemed to press down upon the house, flew from all directions against each other, always returning and never passing away in the distance. With their great thickness they cut off all light from the moon and the stars. But we could see them because they were lighted from below by the air itself, which we could see, rising from the dark lake and from the stones of the house itself.

No