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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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.... about 1230Z today (20th August, 2011), just as the ill-fated Red
Arrow display was in full swing, noted the cloud structure as in these images. Unfortunately, we have a very poor view from here - you really need a more 'open' aspect, but on the clearing edge of the cloud sheet that had earlier brought some rain, the underside of the cloud (estimated above 10000FT/Hurn LCBR gives circa 7000 to 11000FT depending on time) had a distinctly wavy but turbulent look to it ... much as is being touted by the CAS he- http://cloudappreciationsociety.org/attention/ [ scroll down the page a bit] My images are he- http://freespace.virgin.net/martin.r...s_enhanced.jpg http://freespace.virgin.net/martin.r...2_enhanced.jpg I'm not arguing that these were a type of 'asperatus'; as my tag, I would be calling them 'enhanced undulatus', but there was definitely a 'hand of God' look about the rolls and waves that these photographs don't capture very well. The brightness/contrast have been increased very slightly to try to pick out the 'rolls' perpendicular (across) the dominant mid-tropospheric flow at this time. Did anyone else notice this? Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N Long: 01.88W NGR: SU 082 023 |
#2
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On Sat, 20 Aug 2011 21:32:05 +0100, "Martin Rowley"
wrote: Did anyone else notice this? Yes - but up in Shropshire at 1700 z. Pretty much exactly what was in your pictures. -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/cumulus/ |
#3
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"Freddie" wrote ...
Yes - but up in Shropshire at 1700 z. Pretty much exactly what was in your pictures. -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/cumulus/ .... well, the back edge of the cloud sheet was 'wrapping-up' quite quickly through the afternoon, so your timing might fit in! Obviously a lot of 'dynamic' motion to the airflow through this cloud edge. Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N Long: 01.88W NGR: SU 082 023 |
#4
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On 20/08/2011 21:32, Martin Rowley wrote:
... about 1230Z today (20th August, 2011), just as the ill-fated Red Arrow display was in full swing, noted the cloud structure as in these images. Unfortunately, we have a very poor view from here - you really need a more 'open' aspect, but on the clearing edge of the cloud sheet that had earlier brought some rain, the underside of the cloud (estimated above 10000FT/Hurn LCBR gives circa 7000 to 11000FT depending on time) had a distinctly wavy but turbulent look to it ... much as is being touted by the CAS he- http://cloudappreciationsociety.org/attention/ [ scroll down the page a bit] My images are he- http://freespace.virgin.net/martin.r...s_enhanced.jpg http://freespace.virgin.net/martin.r...2_enhanced.jpg I'm not arguing that these were a type of 'asperatus'; as my tag, I would be calling them 'enhanced undulatus', but there was definitely a 'hand of God' look about the rolls and waves that these photographs don't capture very well. The brightness/contrast have been increased very slightly to try to pick out the 'rolls' perpendicular (across) the dominant mid-tropospheric flow at this time. Did anyone else notice this? Martin. This was the view as it went through Guildford. Not quite the same affect on the clearance here. http://www.layton.me.uk/dsc01997.gif -- Phil Guildford |
#5
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![]() "Martin Rowley" wrote in message ... "Freddie" wrote ... Yes - but up in Shropshire at 1700 z. Pretty much exactly what was in your pictures. ... well, the back edge of the cloud sheet was 'wrapping-up' quite quickly through the afternoon, so your timing might fit in! Obviously a lot of 'dynamic' motion to the airflow through this cloud edge. Martin. I meant the appearance of the cloud itself, rather than the fact that there was a back edge. We didn't get a clearance/back edge until well after dark. Sorry for confusion. -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/cumulus/ |
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