Park strategy at present is to allow Thunderhead to return to its natural state.

Far to the west, thunderheads were growing, black at their bases and moving quickly.

Thunderheads were towering in the east, and what else is new?

So, with the day's first thunderheads building over him, Pen walked away from the place he had called home for the past four years.

Thunderheads at their highest drift 10 miles or so above the earth.

I rocked her back and forth in my arms under the black thunderheads.

Big thunderheads were building and rolling toward the prison camp.

He frowned out of his dark beard like a thunderhead.

To the west, Anna could just see the tops of thunderheads.

His eyes darkened; their silver light gave way to thunderheads.

The storm had moved on, but there was one isolated thunderhead just west of them.

Great thunderheads towered in the west and the air went still.

On a bright morning, they look like little thunderheads in almost every color of the spectrum except true red.

On the first morning, we were greeted by low cloud cover and thunderheads.

At the horizon stood the thunderheads of the storm that had passed.

He turned back to us, and his eyes were as dark as thunderheads.

Thunderheads reach many kilometers into the sky, far beyond local weather levels.

This rogue thunderhead did not travel the same direction as the rest of its family.

A diminished thunderhead went off with the last sky walker.

It looked like a city built on a cloud, a thunderhead floating.

However, it was hot, and thunderheads were building up.

But then the wind kicked up a bit and the thunderhead soared still higher.

The fight had been among the clouds, including the massive thunderheads near the mountains.

But they may signal some thunderheads on the distant horizon.

The reason these unusual thunderheads on Saturn become visible is their color.