I believe it's a fake picture. The snow looks like it's not adhering. It's probably taken from an a/c sitting on the ramp and then placed against a sky background. The winds in excess of 400 mph would've blown that snow away very quickly.
I believe you are incorrect. I blew that picture up and looked at the leading edge pixels. They seem to blend smoothly into the background all along the leading edge.
I've done some photo re-work and I know the difference.
The clear leading edges and the likely depth of the boundary layer make this picture credible. Once you get airborne with a load like that, the only thing that will remove it is sublimation.
Not to mention it looks like he is cruising at FL 650 or thereabouts.
Not really that high I think. The horizon looks unduly curved, but the sky would be darker above and the bright horizon would be a bit thinner. Then, again, I've only got experience up to FL520.