Crazy weather in B&W

I shared this photo previously in color. However, I really like the contrast and textures in the b&w version so here it is again :)

One more thing you might have noticed. From today I start to add watermarks to the images I upload. The watermark is likely to change because I don't want it to be very distracting as described here. The reason for adding a watermark is that my photos are shared more frequently recently and I want to make sure I get credited for my work.

Technical details:
Camera: Canon 5D MK II
Lens: Canon 24-105 f/4 L IS USM
Focal length: 24 mm
Aperture: f/8.0
Exposure time: 1/640 ("middle" exposure)
ISO: 400
Number of exposures: 5
E.V. Step: 1
Flash used: no
Tripod: no
Filters: circular polarizing filter
Software: Magic Lantern 2.3, Photomatix Pro 4.2.6 (Details Enhancer), Lightroom 4.2, Photoshop CS6