On Friday, 17 April 2015 17:26:43 UTC+1, Tudor Hughes wrote:
On Thursday, 16 April 2015 18:16:01 UTC+1, Graham P Davis wrote:
Picture of beautiful K-H clouds over Essex.

http://www.bbc.co.uk/weather/feature...e=news_central
Spotted this when it was tweeted by Steph Ball a few minutes ago.

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Graham P Davis, Bracknell
Anti-intellectualism has been a constant thread winding its way through
our political and cultural life, nurtured by the false notion that
democracy means that 'my ignorance is just as good as your knowledge.'
- Isaac Asimov.

Nice, but I strongly suspect a hoax. The conditions for K-H waves are simply not there. The Herstmonceux ascent for 12Z 15th April shows very little wind shear. Also, the humdity is too low.


I saw what looked like the remnants of one of these over Wanstead earlier, about 2.45. It looked to have formed from a jet contrail but had decayed - I didn't get the chance to photograph it as I was driving


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