Spectacular Sunrise

We've had a series of spectacular sunrises over the last few days but none to rival this morning's.  It only lasted a few minutes around 8.20, going from a pearly pink through to these brutal shades of red, orange and yellow, then dying away very quickly into a grey that lasted the rest of the day.

The effect seems to be caused by a break in the cloud cover away to the southeast which allows the rising sun, shining through a thick wedge of atmosphere, to catch the undersides of the clouds.