This one, taken at Armidale looking south, also happened on the same week as the preceding one. About two days before in fact. I thought the curling cloud on the right was particularly interesting and, seeing I was in the open, had serious thoughts about whether I should be even out there taking the picture but I was overwhelmed with awe.
The second shot is when it was getting fairly ugly overhead and that's when I decided to decamp and move out of there and into my car.
Sometimes when you're travelling in Australia you run into thunderstorms, or, perhaps more correctly, they run into you. This particular one happened late in 2005 when I was travelling from Bingara to Tamworth and it loomed up from the east.
It was so impressive I thought I'd stop and take a few snaps. Initially it wasn't spectacular but, over the course of the next ten minutes, that all changed as shown in these three shots.
The warning here is that if you're in the area then avoid the dirt off to the side of the road and avoid dirt roads in particular during these storms.
The former is because you car can literally sink in the mud as the rain penetrates the black soil plains west of the Great Divide and the latter is fairly obvious.