How to use "cloudy" in a sentence

The story was set in the mid-nineteenth century, when a physician's perception of the thin line between life and death was often cloudy

And looking across space, with instruments and minds more powerful than we can dream of, they see, at a distance of only 56,000,000 kilometres, a morning star of hope - our own warmer planet with its green land and grey seas, its cloudy atmosphere and its growing population.

I had a sudden thought and looked to the north, and there I saw a third of these cloudy black hills.

She said there was cloudy weather