On 24/03/14 17:43, Dawlish wrote:
On Monday, March 24, 2014 5:34:13 PM UTC, Dawlish wrote:
On Monday, March 24, 2014 5:21:37 PM UTC, Freddie wrote:


Snip. I read what you said here more carefully..........

This left us with high (e) which persisted around

47-49N 15-20W until the 17th when it moved SW to around 41N19W before

Hang on! You are now saying that the high moved SW -
exactly what I've been saying.
No - you said the high over and to the E of the UK retrogressed - which
it didn't.

That is movement
against the main pattern of flow, isn't it?
No - the westerly flow was north of 50N. The high most likely would've
moved in that direction due to upper ridging in that region creating a
north-easterly flow.

The definition of that is.....................?
Impossible.


dispersing by the 20th.

So no retrogression - just a single instance of a high moving into the

continent (a), with a new high (e) forming 1500 miles to the west. That

isn't retrogression. And, as I've said a few times before, the upper

pattern isn't conducive to retrogression.

Yes, that's your assertion. I could say the moon was made of green cheese,
but it wouldn't be true without me providing evidence.
As Will suggested, I would read up on Rossby waves to further your
knowledge of dynamical meteorology. Then you will gain understanding of
an upper pattern that is conducive to retrogression. I'm not going to
provide a link as it is easier for you to Google it yourself and look at
a number of sources.

--
Freddie
Castle Pulverbatch
Shropshire
221m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PulverbatchWx for hourly reports