I have just witnessed a dust devil in the courtyard of the University Village at UEA. It lasted for about 20 seconds, from what I could see. Hundreds of leaves were picked up, accompanied by dust/grit and other small material, they were hurtled around in a circular motion as the dust devil moved in a predominately northwest direction. People ran for cover/hid under their coats, it turned extremely gusty with small trees swaying. Otherwise it's been a relatively calm day with sunny spells, patchy cloud and a light breeze. Very interesting