That was the first way I tried it. I think it works better this way: Selection of land, expand to suit, feather to suit, fill with white, add noise, horizontal motion blur to suit, then sharpen. After you sharpen (sometimes I sharpen two or three times), adjust brightness and contrast and your set.
Depending on the size of my map the wind filter was hell on my processor.
You're probably right about the motion blur being better...that's the good thing - lots of ways to get similar results.
If the radiance of a thousand suns was to burst at once into the sky, that would be like the splendor of the Mighty One...I am become Death, the Shatterer of worlds.
-J. Robert Oppenheimer (father of the atom bomb) alluding to The Bhagavad Gita (Chapter 11, Verse 32)
My Maps ~ My Brushes ~ My Tutorials ~ My Challenge Maps
Like your map. I just might even use it in a few get togethers