Fay Slimm - Cloudburst.

Shouldering one against the other
Mushrooms of clouds fail to discover
That boisterous behaviour ends in clash
Erupts in sleet that stings in passing.

In file they approach this winter's day
And slide into close tight band of gray.
Skudding huge bulk over wind-chased blue
Cloud patterns split the sky's mood in two.

Tomorrow may choose to unskirt this storm,
But for now hailstorm javelins must be borne.

Fay Slimm

http://www.poemhunter.com/poem/cloudburst-5/