Oh boy, is that a mass of clouds or what. Those look like they are spiking about 25k or 30k easily. Good enough for a nice thunderstorm coming in. I can see the in-flo and the out-flo on either side. Nice photo.....
I seriously don't know how I had managed to miss this photo all the times I have dug through my images... the foreground is a bit messy, but the clouds are huuuge