CHANGEABLE - WITH INTERVALS OF DRY WEATHER AND TRANSITORY
DEPRESSIONS IN THE WEST AND NORTH. GENERALLY COOLER IN THE WEST
AND WARMEST IN THE SOUTH-EAST:

The general pressure situation for the period 11th to 20th June 2004
shows LP to the SW of Iceland having a trough SE'ward towards W
Scotland. HP from the Azores stretches along the Channel to form an
anticyclone over the North Sea and France. Winds are expected to be
cool W or NW to the W of the country, turning SW'erly over the E'tern
parts of Britain. Generally it will be dryer over the E and SE parts of
Britain, the generally wetter parts being in the NW and N of the
country. As the pressure systems are in constant movement across the
British Isles, dry intervals will follow wetter intervals, making the
general picture of the weather a changeable one.

Temperatures will be generally about average, although short bursts
of warm air can spread into SE'tern areas from the continent. Warm days
can be near 13th, 15th, 16th and 20th. Cooler days can be near
14th, 17th and perhaps 19th.

Windy days are expected mostly in the N and NW of Scotland - near
11th, 12th and 18th. Near 15th and 16th, strong winds are expected
near a secondary depression to the SW of Britain

The run of weather starts on 11th with HP extending from the Azores
across SW England to E Scotland. LP lies to the NW of Scotland so that
SW winds flow across Northern Ireland and Scotland, and light winds
cover E Ireland, England and SW Scotland. The HP moves slowly
E'wards. Most parts will be dry, but NW and W Scotland may have showers
later and the extreme parts of SE England could have rain early on which
should die out.
On 12th, the HP has moved E'wards into the North Sea and the LP has
moved nearer NW Scotland. SW winds cover most of Britain, only the S
and SE parts of England are still affected by light winds from the
anticyclone over the North Sea. Fronts of the Scottish depression
stretch from NW Scotland down to about the IOW bringing rain showers to
most places.
On 13th, a complex LP area stretching W/E to the N of Scotland moves in
an E'terly direction. An HP area also stretches W/E to the S of
Britain. Mainly W'terly or SW'terly winds cross the country. A day
of bright intervals and showers with the best weather in the S.
General rain could approach Ireland later in the day.
On 14th, a new depression SW of Iceland has a trough towards
Scotland. An area of HP to the S and SE of England is pushed
E'wards. In the Atlantic, to the SW of Britain, a small secondary
depression is moving towards SW England. Winds are generally W in the
west of the country and light in the SE of England. Some rain showers
can be expected in the SW of England and in the N and NE of the
country.
On 15th, a secondary depression is expected to come into the SW of
England followed by HP out in the Atlantic. LP lies to the N of
Scotland and drifts E'wards. Winds will be SE or E in the south of
the country (variable in the SW of England) and W'terly in Scotland.
There will be rain showers in most places, but it may be dry at first in
the SE of England.
On 16th, LP lies once again to the N of Scotland. A secondary LP lies
near N Biscay and NW France, and HP stretches N/S just to the W of
Ireland moving slowly E'wards. Winds will be S or SE over SE England -
N winds over Ireland and the SW of England - and W winds over
Scotland. Showers in most places, but dryer weather in E England and E
Scotland at first. In the W of the country, dryer weather will spread
E'wards.
On 17th, the HP ridge stretching N/S over the Irish Sea moves further
E'wards, toppling forward as it moves along. LP over the S North Sea
leaves the country and a medium sized LP to the SW of Iceland drifts
towards Scotland. Winds are generally N over the eastern side of the
country and light variable over the western areas. Most rain falls in
the E and SE of the country. Dryer conditions are expected in the
western half of the country.
On 18th, the medium sized LP off NW Scotland has flattened the HP to
the south so that the HP now lies E/W along the Channel. Winds are
mostly WSW across the country. Showers of rain cover the country with
dryer condition in the S and SW of England. More rain is possible in
the SE of England and the S North Sea.
On 19th, LP stretches W/E to the N of Scotland and HP stretches W/E
across the Channel area. To the SW of the country, a small secondary
LP is moving towards the Channel. Winds will be W to SW and showers
will drift across the country.
On 20th, the LP to the NW of Scotland has brought in the secondary LP
which is now to the SW of England moving E'wards. Winds will be S at
first but becoming variable from the W. Showers cover most of the
country and some may be heavy in the SW of England. Dryer weather is
expected over SE England at first.

The next 10-day period (20th to 30th June) has a touch more cyclonic
isobars over the country. The HP has moved into France. As the
general winds are W or NW in the west of the country and SW over
central and eastern areas, the general pressure pattern cannot be
called a "Monsoon Situation" Now July, on the other hand, looks to
have quite a lot of generally cool NW winds coming into western parts
of the country. That should generally keep the temperatures down and
we could complain in all fairness that the summer monsoon has set
in for July.

Cheers, Keith.