On 24 June, 15:34, "Miles G"
wrote:
His reaction, and that of his friend, was one of utter
bewilderment and astonishment, because the fairly unimpeded view from where
they were - the cricket pitch at the top of Rothamsted is considerably
elevated - was of generally blue sky with just a few white cumulus scattered
about.

Very interesting - hadn't heard of this phenomenon before.

That'll get health and safety aficionados panicking !

Richard