Photographs from today - has been a superb one here in Herefordshire..


http://www.weather-pictures.co.uk/310107c_1024.jpg Taken this morning in
the City of Hereford - The Moon had a superb glow for quite a wide arc with
apparent irridescence .This is a single shot 300 mm lens - (St Owen st from
Ledbury Road) with Town Hall spire.

I had recently attended one of Jack Harrisons excellent talks where he spoke
of anticyclonic curvature causing Wave -- spot on today Jack !

http://www.weather-pictures.co.uk/310107b_1024.jpg looking out over Black
Mountains from Herefordshire.


http://www.weather-pictures.co.uk/310107a_1024.jpg can't resist
a Tree and a sunset - Tonight just outside Peterchurch.



Ian

http://www.weatherpictures.co.uk

On 31 Jan, 21:52, "Ian Collins" wrote:

I had recently attended one of Jack Harrisons excellent talks where he spoke
of anticyclonic curvature causing Wave -- spot on today Jack !

Not quite what I had INTENDED saying. I wouldn't dream of suggesting
Ian, that you misunderstood:-)

Anticylonic curvature doesn't cause wave but is often an indicator
that wave will occur. In simple terms, anticylonic curvature implies
a stable layer at height and that is normally one of the requirements
for mountain wave.

Jack

ooops - either way Jack was a superb display -

wrote in message
ups.com...
On 31 Jan, 21:52, "Ian Collins" wrote:

I had recently attended one of Jack Harrisons excellent talks where he
spoke
of anticyclonic curvature causing Wave -- spot on today Jack !

Not quite what I had INTENDED saying. I wouldn't dream of suggesting
Ian, that you misunderstood:-)

Anticylonic curvature doesn't cause wave but is often an indicator
that wave will occur. In simple terms, anticylonic curvature implies
a stable layer at height and that is normally one of the requirements
for mountain wave.

Jack