On 22/06/2015 15:30, Togless wrote:
A year or two ago, I remember seeing a website which showed a map of the
UK with colour shading indicating where there was a risk of rotation /
vorticity / whatever which might lead to the formation of tornadoes. I
have a feeling that it was an experimental programme of some sort from a
university. Annoyingly, I haven't been able to find the site since
then. Does anyone know the one I mean, or something like it?

You may find this BBC website page on the "UK's 'tornado alley'
identified" interesting:

http://www.bbc.co.uk/news/education-33136737

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk