Friday the 13th on the A1m in Cambridgeshire between Sawtry and Peterborough we saw a 'twister' in the sky.
A couple of other motorists stopped on the hard shoulder to take a picture, but I caught it on video with my iPhone.
You can see it on my youtube channel at http://www.youtube.com/watch?v=3P2xjrrWaFU
I'm not entirely sure whether its a twister or a water spout - as looking at the map there is a large lake in the direction I filmed.
Anyway enjoy the video and did anyone else see it ?