He could see no more than ten feet through the heavy smoke.

Be ready to shut it quickly if heavy smoke or fire is present.

The heavy red smoke was drifting steadily away from them.

Even with the smoke still heavy in the air, it's desirable to live inside the world's most powerful economic engine.

Something inside the keep was burning; heavy smoke blew away on the north wind.

It went off with a pop, and heavy, thick smoke rolled out.

Given the heavy smoke that settled over the entire region today, though, more people appeared eager to leave the area than return for now.

"No more heavy smoke and my hands stay clean."

On August 3, 2005, around 10 pm, heavy smoke was seen coming from the lower levels towards the bow of the ship.

Entering his quarters, he sat upon a locker, the smoke still heavy in the air.