Here is a summary of the latest NWP output for noon (GMT) on Sunday.
Issued 0451z, 27th May 2009.

ECMWF: http://expert.weatheronline.co.uk/da...mwf/ecmwf.html
Highs lie to the NE and west, with easterlies and SE'lies over the UK.
The highs merge to the NE on day 6, leading to NE'lies, and on day 7
the winds become ENE'lies as a weak ridge moves eastwards over the UK.

MetO: http://expert.weatheronline.co.uk/da...ukmo/pslv.html
The UK lies under easterlies, from a large high to the north. The high
drifts westwards on day 6, with NE'lies as a result.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
A large high lies to the NNE, with moderate to strong ENE'lies over
the UK. Easterlies and ENE'lies cover the UK on day 6 as the high
moves westwards. On day 7 pressure falls to the south, with further
easterlies.

GEM: http://expert.weatheronline.co.uk/da.../gem/pslv.html
The Canadian run brings NE'lies for all, with a high to the north.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
The Japanese run shows a ridge over the UK and a mixture of NE'lies
and ENE'lies as a result.

In summary, high pressure will retrogress early next week, maintaining
easterlies, ENE'lies or NE'lies over the UK. As a result most areas
will be dry and relatively warm, with the highest temperatures in the
west.