In respect of the weather sat image posted earlier in this thread, I posted it on a local non aviation forum and described the concentric contrails as being formed over East Anglia and blown over the North Sea by a SW wind but a reader of that forum has posted a differing opinion and contends the contrails were formed over the North Sea and were blown towards East Anglia by a NE wind.
As there is no date on the satellite image I cannot look in the weather archive to confirm the wind direction either way.
Help!