"JPG" wrote in message
...
On Tue, 6 Jan 2004 21:16:14 -0000, "Ron Button"

wrote:

As the next bout of feverish anticipation grips certain members of this
group about the possibility of an
Arctic outbreak in 10/14 days time ,should we not be looking to the
Atlantic
surface temperature profiles ?
As far as I can see most, if not all of the North Atlantic is above
normal
temperature wise , with not the slightest sign of a change ,therefore
perpetuating the endless succesion of Lows into Europe
Could some of our wiser contributors comment on this fact and still some
of
those beating hearts out there.
Thankyou


Doesn't the origination of lows require a temperature difference, rather
than an
absolute "higher" temperature?

JPG

RonB


Sorry chaps, for those wanting some proper winter weather. If you take a
look at this excellent forecast and description below of the next few days
from Metcheck, you can see that we are in for a jolly good zonal period
reminiscent of the mid 1970s. This also ties in nicely with Darren
Prescott's forecast today.
I reckon if we see snow lying here in Cambridge this month at all,
then I'll see Elvis on Mars.



Stack 'em up Baby!
Added [Wednesday January 07 2004 : 2:42:49 PM]

The UK is set for a rough old time over the next few days as a mature
depression settles over Iceland.

The system is quite unique as it is one of the first lows for a long time to
develop closed circulation all the way up to the jet stream.
In short, this means it's a mother of a depression and is likely to stick
around for quite a while as it wobbles and tilts to the Northwest.
Usually depressions have closed features at the surface, but are "steered"
by the jet stream which blows from West to East at 250mb.
This new Icelandic Low has the ability to feed on itself as it's spinning
like a top all the way up to 35,000 ft
So what does this mean for us? Well, the low will spawn off vicious
secondary lows as the jet stream is forced to duck-dive under the Icelandic
low and heads in at 250mph from the Southwest. Thursday evening could see a
nasty low head into Southern areas with another for Northern areas on
Sunday.

Expect timings to change a little, all models have real problems with upper
air lows due to the lack of data at these levels but one thing is for
certain.... batten down those hatches!

Source Metcheck.

My Comment:
See what I mean.
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