Next located under filters, then distorts, is the wind filter.
For this image size use Direction left, edge trailing, threshold to 0, and strength to 10. Be sure to do a layer to image size, after if you just rotated the layer, instead of the image.
Due to the recent changes with my server I will be moving the tutorials to: http://pixelbyter.blogspot.com/ Please update your bookmarks, and thanks for the patience.