Ï "Yannis" Ýãñáøå óôï ìÞíõìá
...

Hi all. It was the first subject on the Dutch RTL-4 weather forecast just
a quarter of an hour ago. The explanation was that it was extremely cold
in the stratosphere, -80C at some height. With so low temperatures, there
can be condensation even there; the combination of these thin clouds'
height and the sun's light gives out this weird, yet beautiful colour. The
presenter actually started explaining that the stratosphere is getting
colder as part of global warming and that this /could/ be a more frequent
phenomenon in the future (actually she took it even further, explaining
that this de facto increase of instability could cause "more weather" in a
warmer climate on average). I hope it helps.

And here's the video link for anyone interested:
http://tinyurl.com/2veph2
(press "Het weer 19:50 uur - Helga van Leur" under "Laatste videos" from the
menu on the right if it doesn't load directly).

Yannis.

On Feb 18, 8:11*pm, "Yannis" wrote:
Ï "Yannis" Ýãñáøå óôï ...

Hi all. It was the first subject on the Dutch RTL-4 weather forecast just
a quarter of an hour ago. The explanation was that it was extremely cold
in the stratosphere, -80C at some height. With so low temperatures, there
can be condensation even there; the combination of these thin clouds'
height and the sun's light gives out this weird, yet beautiful colour. The
presenter actually started explaining that the stratosphere is getting
colder as part of global warming and that this /could/ be a more frequent
phenomenon in the future (actually she took it even further, explaining
that this de facto increase of instability could cause "more weather" in a
warmer climate on average). I hope it helps.

And here's the video link for anyone interested:http://tinyurl.com/2veph2
(press "Het weer 19:50 uur - Helga van Leur" under "Laatste videos" from the
menu on the right if it doesn't load directly).

Yannis.

Thanks for that, Yannis, and for the translation, because it
was all Greek to me, as we say. (er, sorry about that). Dutch, it
seems, is ten times more gghhhhuttural than Welsh, even. At least it
confirms that the cloud, or whatever it is, is very high. I think
saying that this will lead to more "weather" i.e. convective storms,
is rather gilding the lily and is highly unlikely.
Can you imagine an explanation like that on the BBC, let alone
anyone else, with their moronic graphics and overall infantile
approach. The bird was all right, 'n' all. But she was only a small
part of the reason I found this presentation something of an eye-
opener after the dross we suffer.

Tudor Hughes, Warlingham, Surrey.

Tudor Hughes wrote:

On Feb 18, 9:08*am, Graham P Davis wrote:
Trevor wrote:
Any one else notice the very unusual colouring of the whole sky
at dusk the evening?

Didn't notice that, but this morning's sky was interesting. Before
the sun appeared, an unusually large area of the eastern sky was
glowing lemon-yellow. Presumably it's due to a lot of dust in the
air.

--
Graham P Davis, Bracknell, Berks., UK. * *E-mail: newsman, not
newsboy. "What use is happiness? It can't buy you money." *[Chic
Murray, 1919-85]

Dust is probably the explanation. I have done a bit of
geometry on tonight's lurid display and have come to the conclusion
that it is caused by a layer of dust at about 25 km. We are looking
at the underneath of this layer. I think the red colouring is always
there anyway due to absorption in the lower atmosphere but we don't
normally see it because there is nothing for it to reflect off. The
light cannot be anything to do with the pronounced surface inversion
because it is still visible at a solar altitude of - 9°. At a solar
altitude of - 5° the bright red colour extended to almost 30° above
the horizon. The usual explanation fo this sort of thing is that a
big volcano has gone off but I don't know of any. On the other hand
the sky during daylight hours looked pretty normal, unlike the case
for a period in 1991-92 after Pinatubo went up.

Tudor Hughes, Warlingham, Surrey.

I agree that it was high. There were uniluminated contrails below the
colour. The aircraft producing them appeared to be at normal cruising
height i.e. above 30,000 feet. The last of the colour to the west
didn't disappear until almost an hour after sunset. The daytime sky
here looked quite hazy but I couldn't really say whether that was crud
trapped under the low-level inversion or whether it was because of dust
at a much higher level.

Norman
--
Norman Lynagh
Chalfont St Giles, Buckinghamshire
85m a.s.l.
(remove "thisbit" twice to e-mail)

"Trevor" wrote in message
. com...
Any one else notice the very unusual colouring of the whole sky at dusk
the evening?
Drat - I was outdoors while the sun was setting yesterday, but as I was
running away from some wolves (while brandishing a large branch) I wasn't
paying too much attention! By the time that was over the sun had set and
there was just the usual orangey glow to the west.

This morning's sunrise (in Leysdown, north Kent) was great, however; the sky
seemed *purple* for a while! This was the view to the east as of 6:40 this
morning...

http://i30.tinypic.com/2i6mcjn.jpg

Note that the picture isn't tweaked at all, that's as it came out of the
camera. In real life the colours were even more vivid!

Darren Prescott wrote:
"Trevor" wrote in message
. com...
Any one else notice the very unusual colouring of the whole sky at
dusk the evening?
Drat - I was outdoors while the sun was setting yesterday, but as I was
running away from some wolves (while brandishing a large branch) I
wasn't paying too much attention! By the time that was over the sun had
set and there was just the usual orangey glow to the west.

This morning's sunrise (in Leysdown, north Kent) was great, however; the
sky seemed *purple* for a while! This was the view to the east as of
6:40 this morning...

http://i30.tinypic.com/2i6mcjn.jpg

Note that the picture isn't tweaked at all, that's as it came out of the
camera. In real life the colours were even more vivid!





If the colours in reality was more vivid, why didn't you tweak the photo
with saturation?

--
Joe Egginton
Wolverhampton
~175m ASL

"Joe Egginton" wrote in message ...
If the colours in reality was more vivid, why didn't you tweak the photo
with saturation?
Easy - the only time I fiddle with photos is when they're for publication in
print. That pic this morning wasn't and it didn't seem worth fiddling with
it.

On Sun, 17 Feb 2008 19:57:43 -0000, "Trevor"
wrote:

Any one else notice the very unusual colouring of the whole sky at dusk the
evening?
I had to go out in the garden to see what was up. The west facing houses, tree
branches and garden sheds were brightly illuminated (this was about 30-40
minutes after sunset). Nothing strange about the western sky but just very
bright.
(Central Scotland)

Geo

On Mon, 18 Feb 2008, you wrote
On Sun, 17 Feb 2008 19:57:43 -0000, "Trevor"
wrote:

Any one else notice the very unusual colouring of the whole sky at dusk the
evening?
I had to go out in the garden to see what was up. The west facing houses, tree
branches and garden sheds were brightly illuminated (this was about 30-40
minutes after sunset). Nothing strange about the western sky but just very
bright.
(Central Scotland)

Extraordinary again tonight - everything facing west is illuminated as
from a vast fire. Rather scary, actually. This is in Blackheath,
London, just before 6pm.

--
Kate B

London

On Mon, 18 Feb 2008 17:51:28 +0000, Kate Brown
wrote:

Extraordinary again tonight - everything facing west is illuminated as
from a vast fire. Rather scary, actually. This is in Blackheath,
London, just before 6pm.

....and here. Gradually subsided to a decreasing yellow arc and finally a
small orange glow. It was quite weird.

--
Alan White
Mozilla Firefox and Forte Agent.
Twenty-eight miles NW of Glasgow, overlooking Lochs Long and Goil in Argyll, Scotland.
Webcam and weather:- http://windycroft.gt-britain.co.uk/weather

On Feb 17, 7:57*pm, "Trevor"
wrote:
Any one else notice the very unusual colouring of the whole sky at dusk the
evening?

Trevor
Kirkburn
East Yorkshire

Hiya Trevor...yes I noticed it...commented to my partner...even
'googled' 'weather strange light' this evening cos it was the same as
yesterday....any idea what causes it ?

Wendy
Heaton Village
Bradford
West Yorkshire