July was relentlessly cyclonic; low pressure lay over or close to
the UK throughout the month except for 7th/8th when a weak
ridge of high pressure affected southern districts, and 30th/31st
when a small mobile anticyclone drifted SE-wards across the
country. Overall it was the 5th most cyclonic and 23rd most
northerly July in the 134year-long record.

Mean pressure charts are now available at:
Charts: http://www.climate-uk.com/monpre/0707.htm
The Monthly Review has already been uploaded to:
http://www.climate-uk.com/monthly/0707.htm
Graphs: http://www.climate-uk.com/graphs/0707.htm and
http://www.climate-uk.com/graphs/200707.htm
Not The Long Range Forecast will be found after 3 August at:
http://www.climate-uk.com/page4.html

On the mean sea-level chart the Icelandic low is again absent;
instead there is a broad trough extending across the
Atlantic and much of Europe between latitudes 55 and 65degN
with a shallow centres of 1009mbar at 59N 28W and deeper
centre of 1004mbar just NE of Oslo. The Azores high (1027mbar)
is slightly stronger than usual but displaced southwest of its normal
position at 33N 42W. The polar high pressure area, rarely seen
in July, is centred at 1016mbar over east Greenland. The flow
over most of the British Isles in W-SWly, but with the trough
axis lying over Scotland there is a hint of a NNEly flow in the
extreme north.

The sea-level pressure anomaly field is dominated by a huge
negative area covering much of the northern Atlantic and
practically the whole of Europe, but pressure is above
average over Greenland/Iceland, and also across the
Atlantic south of latitude 40 degN.

The main anomaly centres we
-9mbar over the central North Sea
-7mbar in mid-Atlantic at 52N 25W
+5mbar over east Greenland
+4mbar south of the Azores

Over the British Isles pressure anomaly ranged from -6mbar
in the Straits of Dover to -8.5mbar along the Scottish east coast
from Aberdeen to the English border. The anomalous flow was strongly NE-ly
in the northern Scotland, and SWly
over southern and central parts of England and Wales.

CET (after Manley) 15.26°C (-1.2 degC wrt 1971-2000)
the coldest since 1993, though barely in the lowest
one-third of all Julys since 1659
CET (after Hadley) 15.2 or 15.3°C (-1.2 or 1.3 degC)
E&W Rain (provisional): 132.6mm (231% of 1971-2000 mean)
the wettest since 1936, and 17th wettest since 1766.
the May/June/July total of 396.4mm (213%) is a new record
E&W Sunshine (prov): 175.0 hr ( 87% of 1971-2000 mean)
the dullest since 1998

CScotT: 14.4°C (-0.7 degC)
ScotRain: 100.8mm (170%)
ScotSun: 133.7hr ( 83%)

NIT: 14.3°C (-0.6 degC)
NI Rain: 108.2mm (177%)
NI Sun: 180.1hr (132%)

Highest rainfall totals:
322mm Capel Curig (Snowdonia)
252mm Pershore Coll.of Ag. (Worcs)
247mm Princetown (Devon)
232mm Stonyhurst (Lancs)
229mm Lake Vyrnwy (Montgomeryshire)
224mm Okehampton (Devon

Lowest rainfall totals:
48.6mm Tiree (Inner Hebrides)
53.2mm Portland (Dorset)
58.4mm Shoeburyness (Essex)
59.4mm Wattisham (Suffolk)

Highest rainfall percentages:
494 Pershore C/Ag (Worcs)
409 Malvern (Worcs)
393 Shobdon (Herefs)
391 Brize Norton (Oxon)
389 Edgbaston (Birmingham)

Lowest rainfall percentages:
66 Altnaharra (Sutherland)
68 Broadford (Skye)
71 Lochranza (Arran)
74 Tiree (Inner Hebrides)

Highest sunshine totals:
239 Jersey airport [CS still?]
235 Guernsey apt [ditto]
227 Portland (Dorset) [CS]
212 Rosslare (Irish Rep) [CS]
212 Malin Hd (Irish Rep) [CS]

Lowest sunshine totals:
65 Braemar (Aberdeenshire)[KZ]
66 Lerwick (Shetland)[KZ]
75 Aviemore (Strathspey) [KZ]
79 Kinloss (Moray)[KZ]
79 Lerwick (Shetland)[CS]
80 Kirkwall (Orkney)[KZ]

Highest sunshine percentages:
148 Malin Hd (Irish Rep)
135 Valentia (Irish Rep)
123 Belmullet (Irish Rep)
116 Cork (Irish Rep)
114 Saughall (Ayrshire)

Lowest sunshine percentages:
53 Lerwick (Shetland)
54 Aviemore (Strathspey)
54 Kinloss (Moray)
60 Kirkwall (Orkney)
..
(c) Philip Eden

"Philip Eden" philipATweatherHYPHENukDOTcom wrote in
:

snip
The Monthly Review has already been uploaded to:
http://www.climate-uk.com/monthly/0707.htm
snip

I think I might take issue with "the worst flood on the Severn between
Bewdley and Gloucester since March 1947". For the downstream section of
that stretch, yes, but here in Bewdley November 2000 saw significantly
higher levels than anything we experienced this July - and 1947 was higher
still. It's certainly the highest *summer* flood here for many decades,
though; I believe the last one comparable was sometime in the 1920s.

--
Bewdley, Worcs. ~90m asl.

David Buttery wrote in
.145:

snip
here in Bewdley November 2000 saw
significantly higher levels than anything we experienced this July -
and 1947 was higher still.
Snip

Please read "...*though* 1947 was higher still".

--
Bewdley, Worcs. ~90m asl.

"David Buttery" wrote :

I think I might take issue with "the worst flood on the Severn between
Bewdley and Gloucester since March 1947". For the downstream section of
that stretch, yes, but here in Bewdley November 2000 saw significantly
higher levels than anything we experienced this July - and 1947 was higher
still. It's certainly the highest *summer* flood here for many decades,
though; I believe the last one comparable was sometime in the 1920s.

David ... I was slightly lazy and too concerned with style. What I
meant was between north of Worcester and Gloucester, which I think
you'll agree sounds clumsy. So I picked the next place upstream that
people will have heard of. I've had chapter and verse from Worcester
on flood levels there which were extreme (1947 for all floods and 1886
for summer floods), and it's curious that water levels seem to have
become so much more extreme on the journey between Bewdley and
Worcester. Any thoughts? Water backing upstream from the confluences
of the Teme and the Avon again?

Philip

"Philip Eden" philipATweatherHYPHENukDOTcom wrote in
:

snip
it's curious that water levels seem to have
become so much more extreme on the journey between Bewdley and
Worcester. Any thoughts? Water backing upstream from the confluences
of the Teme and the Avon again?

I don't know for sure, but that sounds quite likely. As I said, water
levels in Bewdley itself were not all that extreme (as absolute figures;
they were for summer) and I believe the peak was something like 60-70cm
below that of November 2000. I suppose it was a case of the water having
"nowhere else to go" - at least on the western side, the river valley is
fairly steep-sided in Bewdley, considerably more so than it is only a
little way downstream.

--
Bewdley, Worcs. ~90m asl.

On Wed, 1 Aug 2007 16:44:21 +0100, Philip Eden wrote in news:46b0aacc$

snip
Highest sunshine totals:
239 Jersey airport [CS still?]
235 Guernsey apt [ditto]
227 Portland (Dorset) [CS]
212 Rosslare (Irish Rep) [CS]
212 Malin Hd (Irish Rep) [CS]
snip

Worthy of mention in the context of such a "bad" month (as perceived by the
media here) is that the whole of Ireland, whilst it was rather wet, had a
sunny July. This was particularly so in the coastal areas of the north and
west. Many was the day when inland areas were covered by thick convective
cloud, yet a strip along the coast was sunny. Malin Head had its sunniest
July since 1955!




--
Mike Tullett - Coleraine 55.13°N 6.69°W posted 11/08/2007 15:59:02 GMT

Forgive my ignorance, but what exactly is a "Synoptic Overview"?

I understand "Synopsis" and I understand "Overview", but a "Synoptic
Overview"? Is this a recognized meteorological term, or is it just
puffed-up words to make it look more important?

--
Ian

"ian" wrote in message
...
Forgive my ignorance, but what exactly is a "Synoptic Overview"?

I understand "Synopsis" and I understand "Overview", but a "Synoptic
Overview"? Is this a recognized meteorological term, or is it just
puffed-up words to make it look more important?


.... Philip will no doubt reply but writing as a mere observer (&
someone who finds the summaries fascinating), I have no problem with
'Synoptic Overview', given that is could have been rather verbosely
entitled . . . " Review of the mean monthly synoptic pattern " or
something similar. My version of the COD has ' Overview: - general
survey ' and as it is just that, with respect to the synoptic
patterns, it would seem OK. It helps to have a short, sharp subject
when searching through the Google ng database as well.

Martin.



--
Martin Rowley
E:
W: booty.org.uk

In message , Martin Rowley
writes
Forgive my ignorance, but what exactly is a "Synoptic Overview"?

I understand "Synopsis" and I understand "Overview", but a "Synoptic
Overview"? Is this a recognized meteorological term, or is it just
puffed-up words to make it look more important?



"Synoptic" has a history in weather forecasting
You might think it case of puffed up words but forecasters use the
term.
http://www.ace.mmu.ac.uk/eae/Weather...ic_Charts.html

But be careful not to confuse this meteorological use with the synoptic
problems of the new testament.
http://en.wikipedia.org/wiki/Synoptic_Gospels
--
PK
Remove the xtra y from my name in the email address if replying

In message , Paul Kelly
writes

"Synoptic" has a history in weather forecasting
You might think it case of puffed up words but forecasters use the
term.
http://www.ace.mmu.ac.uk/eae/Weather...ic_Charts.html

Aha, now I understand. I wasn't querying the word "synoptic" on its own,
just its use with "overview" in the same phrase. However, following your
link, I now see that it is indeed reasonable to talk about a "synoptic
overview". Thank you for removing some of my ignorance!

--
Ian