Here is a summary of the latest NWP output for 12z on Friday. Issued 0554z,
13/06/05.
The runs continue to show a pending hot spell for SE England in particular
(albeit after some rain on Wednesday). Further north, several models show a
cloudy outlook across Northern Ireland and Scotland, on the boundary between
the warm Continental air and cooler maritime air - indeed, the ensembles for
Aberdeen are a world away from the London ones, showing much cooler
temperatures and a fair bit of rain.
Longer term the GFS brings in a northerly, something which receives some
support in the ensembles but it's too far away to be certain. As ever, more
runs are needed.
ECMWF:
http://64.246.48.81/pics/Recm1201.gif
High pressure covers France, with SW'lies over the UK. A ridge moves over
England and Wales at T+144, with southerlies there and SW'lies elsewhere.
Winds fall light across England, Northern Ireland and Wales at T+168 due to
a col.
MetO:
http://www.wetterzentrale.de/pics/Rukm1201.html
The UK lies under SW'lies, although over southern England they're light due
to high pressure over the English Channel. A ridge covers much of the UK at
T+144, leading to light winds for most areas.
GFS:
http://expert.weatheronline.co.uk/pslv_frame.htm
Warm SW'lies cover the UK, which lies between a high over Germany and a low
to the NW. 850hPa temperatures vary from +6C over NW Scotland to +14C over
SE England. The winds become lighter SW'lies and southerlies at T+144 as a
weak trough moves over Scotland. The trough deepens over the North Sea at
T+168, introducing NNW'lies across the UK. The winds become westerlies and
northerlies on day 8 with a ridge over Northern Ireland, followed by light
and variable winds on day 9 as a result of high pressure over the North Sea
and to the south of Ireland. Day 10 sees a ridge over the UK with light
winds for most.
Ensembles:
http://217.160.75.104/pics/MT8_London_ens.png
The London ensembles still show a marked hot spell, although things don't
really heat up until Thursday now. Temperatures reach a peak on Sunday,
before falling back to average by the following Friday.
GEM:
http://www.meteocentre.com/models/glb00_120.html
The Canadian run places high pressure to the SE, leading to SW'lies at both
T+120 and T+144.
GME/DWD:
http://www.wetter.com/home/img/sat/g...130000_120.gif
The UK lies under SW'lies, with a ridge over southern England. The ridge
persists at T+144, bringing southerlies and SSW'lies.
JMA:
http://www.wetterzentrale.de/pics/Rjma1201.html
England and Wales are covered by a ridge, bringing light westerlies, with
SW'lies elsewhere. The ridge moves northwards at T+144, leading to
southerlies and SW'lies for Northern Ireland and Scotland respectively.
NOGAPS:
http://wetterzentrale.com/pics/Rngp1201.gif
NOGAPS shows SW'lies at T+120 and T+144 as the result of a high moving
NE'wards over France at T+120 and by T+144 it covers Poland.
KMA:
http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
The Korean run shows a high over the North Sea, leading to SSW'lies over the
UK.