2 Esdras 15:34

34 Then suddenly clouds - terrible, angry storm clouds - will cover the sky from one end to the other.

2 Esdras 15:34 In-Context

32 who will be thrown into panic, beaten into silence, and forced to turn and run.
33 The wild boars will be ambushed in Assyria, and one of them will be killed. This will bring fear and panic to their army and indecision to their kings.
34 Then suddenly clouds - terrible, angry storm clouds - will cover the sky from one end to the other.
35 They will collide head-on and release their violence upon the earth. The blood of war will be as deep as a horse's belly
36 or someone's thigh or a camel's knee.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.