The foreground of this image is a bit ‘meh’ for a wallpaper, but the march of those massive lenticular clouds past Mt. Rainier (Washington, USA) is just spectacular.
Last June I was treated to a whole horizon full of lenticular clouds near Reno, Nevada, while on a road trip. I took a bazillion photos through the front windshield, and found the whole scene to be quite magical…but those clouds were to these as a rain shower is to a hurricane. I mean, these are mountain-sized.
The photo is from December 2008, and was featured in an Astronomy Picture of the Day on 4 November 2012. What puzzles me is that there is still autumn foliage on what looks to be a sweet gum tree…in December?
(Click on the image to lenticulate.)