With every step he took, the heat intensified.

The sun stood high overhead and the heat had intensified.

The heat intensified the subtle scent of her perfume.

Even as the cool night air streamed in through the window, the heat around them and between them intensified.

The heat between them intensified by one degree and then another.

And then he came upon something solid and felt the heat intensify.

The heat had intensified all week-or maybe he'd grown increasingly intolerant of it.

Dawn was dull, and the heat intensified in the morning.

Abruptly they felt the heat intensify and knew that the sky was shining more brilliantly than before.

The heat on him intensified after he hit Soriano.