The smoke was roiling before the flames, turning the air black.
Every set of double doors that led into the hospital was open; smoke roiled through them and along the ceiling.
Slade was through the gap while the smoke still roiled.
Black smoke roiled above it, blotting out a quarter moon.
The heavy black smoke roiling over the tips of the highest flames confirmed it.
A gust of wind sent smoke roiling through the open door that started them both coughing.
But the flame danced above it, and the smoke roiled about, as if fighting the water for this living prize.
A column of fire shot slantingly into the night sky, bright smoke roiling from it.
Firefighters responding to the initial alarm found a thick, dark cloud of smoke roiling from the building.
The smoke thickened and spread as it roiled upward.