podstawa chmury

The sky was overcast, with a cloud base of 120-150 feet.

If at all possible, I wanted to go over those mountains under the cloud base, able to see them.

Then came the worst moment: they were through the cloud base.

There were no stars and the low cloud base had hidden even the moon.

Ahead of him through the gaps in the massive cloud bases he saw the Jordan.

I shoved the nose over at 1,300 feet to stay below the cloud base.

The cloud base, dark gray and solid looking, hung immediately above.

Humid air will generally result in a lower cloud base.

One of the reasons the bombers had sustained so little damage was the cloud base.

By this time the cloud base had reduced to 1,000 feet agl.