On Jun 10, 3:19*pm, "Tom Allen" wrote:
Can anyone offer an explanation for the strange artefact seen onhttp://www.meteogroup.co.uk/uk/home/weather/radar/united_kingdom.html
advancing towards Purbeck against the flow from the rain area in the
Channel *?

Where is Purbeck?

You should have saved a Print Screen of the graphic and posted it to a
site for storage.