On Mar 24, 1:01*pm, "Keith (Southend)G"
wrote:
Is this just one of those fluctuations we get from time to time or is there some unerlining reason for the exceptional weather we have been having in the UK this past year ?

Why has the jet stream decided to emigrate so far south ?

Is it to do with ice melt at the pole?

I'd be interested in any rational theory's there maybe out there, and more to the point, what's ahead for us ?

Keith (Southend)http://www.southendweather.net
"Weather Home & Abroad"

To my untrained eye high pressure to north-west,north or north east-
but especially over greenland has become persistant .Whether this is
because the jet has moved south or has caused the jet to move south i
just have no clue.I do remember many times when lows used to track up
over iceland -they just dont seem to do that as often now.The dominant
weather pattern is high to the north and the south(azores) with lows
taking amore southerly track than used to be the case towards us
then getting stuck in our vicinity..Northern blocking is ruining our
weather imho and making farming very challenging(im a farmer).
Who knows why its happening,whether its just a blip or here to stay.Is
it caused by a quiet sun or a melting artic.Or has the jet stopped
meandering like it used to..I would love more discussion on this
subject.And some answers please.!!

On Sunday, March 24, 2013 10:28:43 PM UTC, nickm wrote:


To my untrained eye high pressure to north-west,north or north east-

but especially over greenland has become persistant .Whether this is

because the jet has moved south or has caused the jet to move south i

just have no clue.I do remember many times when lows used to track up

over iceland -they just dont seem to do that as often now.The dominant

weather pattern is high to the north and the south(azores) with lows

taking amore southerly track than used to be the case towards us

then getting stuck in our vicinity..Northern blocking is ruining our

weather imho and making farming very challenging(im a farmer).

Who knows why its happening,whether its just a blip or here to stay.Is

it caused by a quiet sun or a melting artic.Or has the jet stopped

meandering like it used to..I would love more discussion on this

subject.And some answers please.!!

I sympathise with your plight as a farmer, and I apologise for my remarks about whining on another thread - they were not aimed at professionals who have to work with these conditions, but at individuals who seem to think they ought to be able to wear a t-shirt all year round and have their home thermostat set on 24C, and then moan when it is cold outside.

But back to the jet stream discussion.

I do not study the phenomenon in detail, but my impression is that the jet seems to have become less 'straight' over the Atlantic than it was maybe 30-40 years ago.

There seems to be more tendency for the waves in the jet to have become more exaggerated, and therefore leading to more disruption and slow moving small upper lows which bring the threat of increased rainfall to areas which were used to getting fronts moving through relatively quickly, from time to time, and followed by decent rises in pressure.

Now, no sooner has one cut off upper vortex faded away, than the next sharpening trough is upon us, threatening to repeat the process over again.

I'm afraid that I do not know the answer to the question - why is this happening, but I remember that from about April to October (inclusive) in the 1970s, it was almost guaranteed that if an unsettled spell of weather occurred it would last about 5 to 6 weeks and then pressure would rise steadily and we would get a month or so of decent weather.

This does not seem to happen much these days. We now seem to get year after year of extremes.

In message ,
willie eckerslike writes

I sympathise with your plight as a farmer, and I apologise for my
remarks about whining on another thread - they were not aimed at
professionals who have to work with these conditions, but at
individuals who seem to think they ought to be able to wear a t-shirt
all year round and have their home thermostat set on 24C, and then moan
when it is cold outside.


Exactly the same here :-

http://www.bbc.co.uk/news/world/europe/isle_of_man/

A once in 50 years event according to our Met Office.

I'm not complaining about being unable to wear a tee shirt but I am a
bit miffed with the weight of snow on the roof bringing all the
guttering down. The 10 feet drift, which is currently stopping us
getting up our track and out onto the freshly ploughed lane is something
of a bummer too.

Currently awaiting spine surgery, which makes shovel work in the snow a
non-starter.
--


Jim