On Nov 3, 8:06*am, "Philip Eden" philipATweatherHYPHENukDOTcom
wrote:
It was the most westerly October over the British Isles since
1986, and the ninth most westerly in 136 years of records. It was
therefore a changeable month with the usual contrast between
orographic rainfall on western upslopes and eastern rain-shadow
considerable enhanced. The second week was notable for a spell
of warm and sunny weather in southern, central and eastern
districts, and there was a brief Arctic outbreak of rare severity
(for October) towards the end of the month. The snowfall on
the 28th was quite possibly the heaviest and most widespread
such event in lowland Britain in October since 1880.

Mean pressure charts will soon be uploaded to:
Charts: *http://www.climate-uk.com/monpre/0810.htm
The Monthly Review will be uploaded later today or Monday to:http://www.climate-uk.com/monthly/0810.htm
Graphs: *http://www.climate-uk.com/graphs/0810.htm*and
* * * * * * *http://www.climate-uk.com/graphs/200810.htm
Not The Long Range Forecast should be available by Nov 4 on:
* * * * * * *http://www.climate-uk.com/page4.html

The sea-level pressure chart shows the Icelandic low much
deeper than usual and displaced well to the east with a centre
of 992mbar in the eastern Norwegian Sea at 69N 02E. The
Azores high is in situ, but more intense than usual at 1026mbar.
Pressure is also high over southern Russia and the Caucasus.
A rather steep W to SW gradient covers the British Isles,
Scandinavia, the Baltic and the North European Plain.

At the 500 mbar level the flow is zonal, but a broad, flat
trough is identifiable over Europe between 0 and 20degE.

The sea-level pressure anomaly field shows well below
normal pressure over Scandinavia, the Baltic, the
Norwegian Sea, northern Britain, and Iceland. Pressure
is generally above normal over the Atlantic from south of
the Azores to western Biscay, and also between Greenland
and Newfoundland.

The main anomaly centres we
* *-13mbar in the Norwegian Sea at 67N 04E
* *+ 6mbar just north of the Azores

Over the British Isles pressure anomaly ranges from -7mbar
over Shetland to +1mbar in Cornwall and southwest Ireland.
The anomalous flow is strongly WNW-ly.

CET (after Manley) * 9.74°C *(-0.7 degC wrt 1971-2000)
CET (after Hadley) * *prob 9.7 or 9.8°C
E&W Rain (provisional): * *98.1mm *(103% of 1971-2000 mean)
E&W Sunshine (prov): * * 132.1 hr * (118% of 1971-2000 mean)

It was the coldest but also the sunniest October over England
and Wales since 2003; wetter than last year but not as
wet as 2006.

CScotT: * * * * 8.8°C *(-0.8degC)
ScotRain: * * 155mm *(135%)
ScotSun: * * *101hr * *(113%)

NIT: * * * * * *9.6°C *(-0.9degC)
NI Rain: * * 117mm (117%)
NI Sun: * * *105hr * (113%)

Rainfall totals ranged from 646mm at Capel Curig
(Snowdonia) and 496mm at Inveruglas (above Loch Lomond)
to 31mm at Bramham and 33mm at Church Fenton (both
near York) and 35mm at Boulmer (Northumberland).

Percentages ranged from 269 at Shap (Cumbria) and
264 at Capel Curig (Snowdonia) *to 57 at Boulmer.

Sunshine totals ranged from 153.2h at Royston (Herts) [R&D
sensor?], 146.2h at Brize Norton (Oxon) [CS recorder], and
146.0h at Eastbourne (Sussex)[CS recorder],
*to 46.4h at Kinlochewe (Wester Ross) [KZ sensor, horizon
partly obscured], 61.8h at Threave (Kirkcudbrightshire)
[KZ sensor, horizon partly obscured], and 63.0h at
Eskdalemuir (Dumfriesshire) [KZ sensor].

Percentages ranged from 142 at Ross-on-Wye (Herefs)
to 82 at Eskdalemuir.

(c) Philip Eden

Always appreciated, thanks Philip.