1.   And new clouds loom on the horizon.

2.   A black cloud loomed over the light and festive Winter Carnival.

3.   But now clouds loom.

4.   But when we arrived, clouds loomed in the sky.

5.   Dark clouds loom.

6.   To the east, a dust cloud looms like the aftermath of an explosion.

7.   At nightfall, a dense gray smoke cloud loomed over Show Low.

8.   At nightfall, a dense gray smoke cloud loomed over Show Low as a steady stream of residents headed out of town.

9.   But when the cloud is already looming large on the horizon, the only way to avert a major disaster is to defuse tension.

10.   Dark clouds loomed overhead throughout the day, serving warning that the car setup might have to be changed at any given moment over the weekend.