http://www.weather-banter.co.uk A web gateway with the finest weather related newsgroups. en Wed, 08 Sep 2010 12:11:21 GMT vBulletin 60 http://www.weather-banter.co.uk/images/002/misc/rss.jpg http://www.weather-banter.co.uk http://www.weather-banter.co.uk/showthread.php?t=147619&goto=newpost Wed, 08 Sep 2010 07:49:09 GMT http://nsidc.org/arcticseaicenews/2010/090710.html

It's also now very close to reaching the second-placed year, 2008.
http://arctic.atmos.uiuc.edu/cryosph...ent.arctic.png

The eastern Arctic has been looking very swiss-cheesed, particularly north
of Svalbard and there's an open area at 87N 160W. Not the first time that's
happened, I think it was about four or five years ago I saw such a large
area that far north.
http://iup.physik.uni-bremen.de:8084...SRE_visual.png

--
Graham Davis, Bracknell, Berks. E-mail: "newsman", not "newsboy".
"It pays to keep an open mind, but not so open your brains fall out." - Carl
Sagan
Pakistan Floods Appeal: http://www.dec.org.uk/
]]> uk.sci.weather (UK Weather) Graham P Davis http://www.weather-banter.co.uk/showthread.php?t=147619 http://www.weather-banter.co.uk/showthread.php?t=147616&goto=newpost Wed, 08 Sep 2010 06:38:27 GMT Hello, This is my first post. I was trying to understand the coupling between the conditions at the surface condition and aloft. So far, I got to the following: - An imbedded short wave disturbs the upper airflow creating cold and warm air advections and intensifying the trough/ridge - The polar jet stream creates areas of convergence aloft (supplying air to the surface high pressure) and... Hello,

This is my first post.

I was trying to understand the coupling between the conditions at the surface condition and aloft. So far, I got to the following:
- An imbedded short wave disturbs the upper airflow creating cold and warm air advections and intensifying the trough/ridge
- The polar jet stream creates areas of convergence aloft (supplying air to the surface high pressure) and divergence aloft (removing air from the surface cyclone).

Now, I had a look at the creation of these short waves, I found that they usually originate from terrain disturbance (barotropic instability) or from baroclinic instability (where air gets squeezed between frontal zones and the tropopause).

How does it actually work because it seems that surface influences aloft and aloft influences surface, but which one starts first?

Many thanks,

Stephane ]]> uk.sci.weather (UK Weather) FrenchScotPilot http://www.weather-banter.co.uk/showthread.php?t=147616 http://www.weather-banter.co.uk/showthread.php?t=147617&goto=newpost Wed, 08 Sep 2010 04:35:17 GMT Here is a summary of the latest NWP output for noon (GMT) on Sunday. Issued 0433z, 8/09/10. The southernmost areas of the UK will see settled and warm weather to start next week, with rain further north. The models are split after that: GFS shows the warm, dry weather spreading northwards while MetO and ECM show a trough moving across the UK instead. The far south looks like staying largely dry... Here is a summary of the latest NWP output for noon (GMT) on Sunday.
Issued 0433z, 8/09/10.

The southernmost areas of the UK will see settled and warm weather to
start next week, with rain further north. The models are split after
that: GFS shows the warm, dry weather spreading northwards while MetO
and ECM show a trough moving across the UK instead. The far south
looks like staying largely dry throughout.

ECMWF: http://www.wzkarten.de/pics/Recm1201.gif
A ridge covers the UK, bringing northerlies to England and Wales and
SW'lies elsewhere. SW'lies spread across all areas except the far
south on day 6, as pressure falls to the NW. On day 7 a trough crosses
the UK, with westerlies for all.

MetO: http://www.wzkarten.de/pics/Rukm1201.gif
The Met Office run shows a ridge over England and Wales, with light
westerlies. Further north winds are SW'ly, with low pressure over
Iceland. On day 6 SW'lis strengthen over all areas except southern
England, as high pressure declines to the south.

GFS: http://www.wzkarten.de/pics/Rtavn1201.png
The UK lies under westerlies and WSW'lies, with a large high to the SW
and a ridge over England and Wales. The winds become WSW'lies for most
on day 6 as the high approaches the UK. On day 7 the high covers the
Celtic Sea, leading to a mixture of NW'lies and westerlies for the UK.

GEM: http://www.wzkarten.de/pics/Rgem1201.gif
A ridge lies to the west, resulting in northerlies for all.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
JMA shows a ridge over the UK, with a mixture of westerlies and
NW'lies as a result.

]]> uk.sci.weather (UK Weather) Darren Prescott (via Google) http://www.weather-banter.co.uk/showthread.php?t=147617 http://www.weather-banter.co.uk/showthread.php?t=147615&goto=newpost Tue, 07 Sep 2010 20:27:48 GMT breaking news. bbc and meto have decided to stop issuing daily weather forecasts. according to insiders, weather forecasts will only be issued when the met office think they will be correct. this will leave the public to fend for themselves when forecasts are not issued. breaking news.

bbc and meto have decided to stop issuing daily weather forecasts.

according to insiders, weather forecasts will only be issued when the
met office think they will be correct.

this will leave the public to fend for themselves when forecasts are not
issued.

periods of "no forecast" may last for days if not weeks , especially in
winter , when confidence is low, especially at T240.

on TV , the bcc will play random pages from CEEFAX to fill the space
when forecasts are not issued.

on the internet, the bcc and met office webpages will be substituted
with links to webcams of the sky outside.

critics say this is just they latest attempt to make forecasting
accuracy statistics look better.


other weather agencies are now looking to follow suit.

]]> uk.sci.weather (UK Weather) mumford http://www.weather-banter.co.uk/showthread.php?t=147615 http://www.weather-banter.co.uk/showthread.php?t=147614&goto=newpost Tue, 07 Sep 2010 20:05:50 GMT Tuesday 7th September 2010 Meteosat 8 satellite picture from Ferdinand Valk’s site at 12.00 UTC http://www.fvalk.com/images/Day_image/MSG-1200-EUR.jpg Meteosat MSG-2 satellite picture from Bernard Burton’s site at 12.00 UTC http://www.woksat.info/etcsi07m/si07-msg-1200-uk.html NOAA 19 satellite picture from Bernard Burton’s site at 13.15 UTC http://www.woksat.info/etcsi07/si07-1315-b-uk.html Tuesday 7th September 2010

Meteosat 8 satellite picture from Ferdinand Valk’s site at 12.00 UTC
http://www.fvalk.com/images/Day_image/MSG-1200-EUR.jpg

Meteosat MSG-2 satellite picture from Bernard Burton’s site at 12.00
UTC http://www.woksat.info/etcsi07m/si07-msg-1200-uk.html

NOAA 19 satellite picture from Bernard Burton’s site at 13.15 UTC
http://www.woksat.info/etcsi07/si07-1315-b-uk.html

Front stretches from Ireland to northern Scotland and over the North
Sea to the Netherlands, eastern Belgium and western Germany.
Convection over the rest of Britain with heavy showers over Wales and
the west Midlands.


UK min. temps on Monday night http://tinyurl.com/37hccyq

Shawbury 9.5°C, Lake Vyrnwy and Trawsgoed 9.4°C, Hereford, Cardinham
and Bournemouth (Hurn) 9.3°C, Rhyl 9.2°C, Glen Ogle, Shobdon and
Liscombe 8.9°C, Yeovilton 8.6°C, Exeter 7.4°C.

Mumbles and Portland 14.4°C, Jersey 14.5°C, Solent MRSC 15.2°C, St
Catherine’s Point 15.4°C.


UK max. temps on Tuesday http://tinyurl.com/3xpkfhu

Glen Ogle 11.1°C, Loch Glascarnoch 13.0°C, Inverbervie 13.1°C,
Aboyne 13.2°C, Tulloch Bridge 14.2°C, Aberdeen (Dyce) 14.4°C.

Church Fenton and Leeming 20.1°C, Linton-on-Ouse 20.2°C, Carlisle
and Shoeburyness 20.3°C, Coningsby and Marham 20.4°C, Manston
20.5°C, St James’s Park 20.8°C, Weybourne 21.2°C, Gravesend 21.6°C.

OGIMET summary http://tinyurl.com/3yl2sov


Rainfall radar http://www.meteox.com/h.aspx?r=&soort=loop24uur&URL
or http://www.raintoday.co.uk/

Rain moves slowly north over Scotland on Tuesday. Showers move into
Britain from the SW during the morning and spread north during the
afternoon.

Thunder in Wales and NW England and later also in NE England and
southern Scotland - Sferics http://tinyurl.com/mm2h78

Rainfall totals in 24 hours ending 18.00 UTC on Tuesday http://tinyurl.com/3xy885l

Fylingdales 25 mm, Aboyne and Nottingham (Watnall) 26 mm, Copley
27.7 mm, Machrihanish, West Freugh and Bingley 28 mm, Lough Fea 30
mm, Ballypatrick 31 mm, Dundrennan and Walney Island 32 mm, Port
Ellen (Islay) 37 mm, Redesdale 41 mm.


Location of some UK stations http://www.metoffice.gov.uk/educatio...r_data_uk.html


Colin Youngs
Brussels
]]> uk.sci.weather (UK Weather) http://www.weather-banter.co.uk/showthread.php?t=147614 http://www.weather-banter.co.uk/showthread.php?t=147613&goto=newpost Tue, 07 Sep 2010 20:01:30 GMT Brussels on Tuesday 7th September 2010 Overcast morning after a wet night. Brief spell of moderate rain around 10.00 local time. Brighter with broken cloud and sunny intervals from early afternoon but cloudy again in the evening. Light S wind in the morning backed SE and then E during the afternoon. Brussels Uccle 20.7°C - overnight minimum 12.2°C - and 16 mm rain Brussels Airport... Brussels on Tuesday 7th September 2010

Overcast morning after a wet night. Brief spell of moderate rain
around 10.00 local time. Brighter with broken cloud and sunny
intervals from early afternoon but cloudy again in the evening.
Light S wind in the morning backed SE and then E during the afternoon.

Brussels Uccle 20.7°C - overnight minimum 12.2°C - and 16 mm rain
Brussels Airport 19.7°C - overnight minimum 11.7°C - and 15 mm

Brussels Airport http://weather.noaa.gov/weather/current/EBBR.html

Brussels Uccle Graphs http://deus.irceline.be/~celinair/me...=nl&sta=T1R012

Rainfall radar http://www.buienradar.nl/h.aspx?jaar...t=loop24uur1x1

OGIMET monthly summary for Brussels Uccle http://tinyurl.com/34oajnr

Webcams Grand-Place http://www.brussels.be/artdet.cfm?id=4664&FMT=18
and http://www.ilotsacre.be/images/webcam/webcam.htm

Webcam Uccle http://www.meteo.be/meteo/view/en/15...cam+Uccle.html

Colin Youngs
Brussels
]]> uk.sci.weather (UK Weather) http://www.weather-banter.co.uk/showthread.php?t=147613 http://www.weather-banter.co.uk/showthread.php?t=147612&goto=newpost Tue, 07 Sep 2010 16:37:56 GMT heading up past Lochearnhead to Killin and Loch tay heading up past Lochearnhead to Killin and Loch tay
]]> uk.sci.weather (UK Weather) Brian in Aberfeldy http://www.weather-banter.co.uk/showthread.php?t=147612 http://www.weather-banter.co.uk/showthread.php?t=147611&goto=newpost Tue, 07 Sep 2010 16:05:38 GMT I understand that the long-predicted move from alpha-numeric codes such as SYNOP is now very imminent. The target date for the end of the use of the SYNOP code is currently 1st Nov 2010. Some countries are struggling to make that date so there may be a bit of slippage. Currently, the Met Office plans to cease the transmission of UK observations in the SYNOP code onto GTS on 1st Nov. -- Norman... I understand that the long-predicted move from alpha-numeric codes such as
SYNOP is now very imminent. The target date for the end of the use of the SYNOP
code is currently 1st Nov 2010. Some countries are struggling to make that date
so there may be a bit of slippage. Currently, the Met Office plans to cease the
transmission of UK observations in the SYNOP code onto GTS on 1st Nov.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
]]> uk.sci.weather (UK Weather) http://www.weather-banter.co.uk/showthread.php?t=147611 http://www.weather-banter.co.uk/showthread.php?t=147610&goto=newpost Tue, 07 Sep 2010 10:35:04 GMT (09:00UTC 07/09/10) 13.8°C Max 18.4°C, min 10.5°C Dewpoint 12.7°C RH 93% Wind 0.7 kts NE 998.9 hPa Steady Ppn (standard gauge) 12.6mm last 24hrs Ppn (standard gauge) 13.8mm this month Ppn (standard gauge) 30-day rolling total 115.2mm (09:00UTC 07/09/10)
13.8°C
Max 18.4°C, min 10.5°C
Dewpoint 12.7°C
RH 93%
Wind 0.7 kts NE
998.9 hPa Steady
Ppn (standard gauge) 12.6mm last 24hrs
Ppn (standard gauge) 13.8mm this month
Ppn (standard gauge) 30-day rolling total 115.2mm
Ppn (AWS) 7.8mm last 24hrs
Ppn (AWS) 8.8mm this month

Cu/Cs fibratus from SE, dry, cool, quiet

Hugh

--

Hugh Newbury

www.evershot-weather.org






]]> uk.sci.weather (UK Weather) Hugh Newbury http://www.weather-banter.co.uk/showthread.php?t=147610 http://www.weather-banter.co.uk/showthread.php?t=147609&goto=newpost Tue, 07 Sep 2010 09:38:26 GMT 7 September 2010 Wokingham 0900z 190 04/11kt 15km 3Cu010 6Ci220 +16.3/+13.7 QFF 1000.6 +0.4 in 3hr Total 7 okta RMK 2Ac180 Cu med Period od mod/hvy rain 1715 to 2110z, max rate 17 mm/hr at 1924z. Cloud becoming well broken overnight, with Cb tops to the SW at 06z, and Ci increasing from the SW in the past hour, as well as Cu forming and developing quickly. 09-09 Screen max 20.9 min 11.7 ... 7 September 2010
Wokingham 0900z 190 04/11kt 15km 3Cu010 6Ci220
+16.3/+13.7 QFF 1000.6 +0.4 in 3hr Total 7 okta
RMK 2Ac180 Cu med Period od mod/hvy rain 1715 to 2110z,
max rate 17 mm/hr at 1924z. Cloud becoming well broken
overnight, with Cb tops to the SW at 06z, and Ci increasing
from the SW in the past hour, as well as Cu forming and
developing quickly.

09-09 Screen max 20.9 min 11.7 grass min 6.4
Rain 8.0 sun (00-24) 1.3
AWS max 20.9 min 11.7
0.2 mm dew overnight.

--
Bernard Burton
Wokingham, Berkshire, UK.

Weather satellite images at:
www.woksat.info/wwp.html



]]> uk.sci.weather (UK Weather) Bernard Burton http://www.weather-banter.co.uk/showthread.php?t=147609 http://www.weather-banter.co.uk/showthread.php?t=147608&goto=newpost Tue, 07 Sep 2010 09:25:31 GMT Bracknell, Berkshire, UK (51° 24'N, 0° 46'W, 77m AMSL) 07/09/10

070900Z 177°/3.7 kts/7.8 kts 16.9°C/14.2°C QFF 1000.9 hpa (+0.6 hPa in last 3 hours)=
Humidity: 84% (-7% in last hour)

Max 09-09: 20.9 at 12:09 06/09/10
Min 09-09: 12.3 at 05:39 07/09/10
Grass Min 18-09: 7.6
30cm Soil Temp: 15.7
Rain 09-09: 7.2 mm (last tip at 08:06 on 7/9/2010)
September Rain (00-24): 7.2 mm
2010 Rain (00-24): 394.2 mm
State of Ground: Wet
Remarks: Rain yesterday evening, heavy for a time. Sunny start today, but now a widspread layer
of Ac/As now with some Cu med.

Max Solar Irradiation Yesterday: 1055.3 W/m2 at 12:01
Bright Sun yesterday 2.7 hours (for comparison only, due to poor exposure)

Bracknell Weather at: http://www.weatherfamily.org/bracknell
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++



--- news://freenews.netfront.net/ - complaints: ---
]]> uk.sci.weather (UK Weather) http://www.weather-banter.co.uk/showthread.php?t=147608 http://www.weather-banter.co.uk/showthread.php?t=147607&goto=newpost Tue, 07 Sep 2010 09:17:00 GMT Hi, All, First rain since 24th August last night and at 27.7mm, wettest 24hr since 20th July (36.9mm). 09Z-09Z 7th September 2010 Lead Mill 218m Max 19.0 C min 10.8C Met O 253m Max 18.0C min 10.9C grass 9.7C, rain 27.7mm, sun 6th 6.7hr Hi, All,

First rain since 24th August last night and at 27.7mm, wettest 24hr
since 20th July (36.9mm).

09Z-09Z 7th September 2010
Lead Mill 218m
Max 19.0 C min 10.8C
Met O 253m
Max 18.0C min 10.9C grass 9.7C, rain 27.7mm, sun 6th 6.7hr

Current, 0850Z SE 5KT(F2), vis 900 metres, overcast, fog & light
rain, temp 12C dew 12C, 999mb

Met O September so far:- rain 27.7mm(39%), sun 41.0hr(30%), screen
18.4C / 8.4C / 13.4C(+1.9C), wind ESE 4.5KT(-2.8KT)
Lead Mill September so far:- 18.3C / 7.1C / 12.7C

Ken
Copley, nr Barnard Castle, Teesdale, County Durham
http://copley.website.orange.co.uk

Check current County Durham weather:-
http://www.trafficweather.info/roadW....jsp?client=13
(A68 Tow Law closest to Copley conditions)
]]> uk.sci.weather (UK Weather) Ken Cook http://www.weather-banter.co.uk/showthread.php?t=147607 http://www.weather-banter.co.uk/showthread.php?t=147606&goto=newpost Tue, 07 Sep 2010 09:05:55 GMT Southcote - 0900Z S F2 9999 1St010 4Cu015 6Ci220 +15.4/+12.9 1001 Southcote - 0900Z

S F2
9999
1St010
4Cu015
6Ci220
+15.4/+12.9
1001

1Sc030 and 1Ac120 also
Cu med
7/8 total cloud.

A period of mainly moderate rain yesterday evening from 1715 until
around 2145.
Cloud breaking before dawn.
St 0600 and then fog until 0645, with vis 500 - 1000m.
A few sunny intervals, but Cu forming and Ci increasing in past couple
of hours.

Max (09 - 09) +20.4
Min (18 - 09) +12.0
Grass Min (18 - 09) +10.7
Rain (09 - 09) 7.2mm

Eric Belton
]]> uk.sci.weather (UK Weather) Eric http://www.weather-banter.co.uk/showthread.php?t=147606 http://www.weather-banter.co.uk/showthread.php?t=147605&goto=newpost Tue, 07 Sep 2010 08:55:46 GMT 07/0850 Z Sep 10: SSW F3 40KM 1CB015 3AC070 13.4/11.7 Q0998 Rmks: Overnight rainfall 1.2 mm (28.0 mm in last 24 hours.....highest 09-09 total here since 29 Jul 09). Min 9.1, grass min 3.4 C. Andy (near Romansleigh, 200 m) 07/0850 Z Sep 10: SSW F3 40KM 1CB015 3AC070 13.4/11.7 Q0998

Rmks: Overnight rainfall 1.2 mm (28.0 mm in last 24 hours.....highest
09-09 total here since 29 Jul 09). Min 9.1, grass min 3.4 C.

Andy
(near Romansleigh, 200 m)
]]> uk.sci.weather (UK Weather) http://www.weather-banter.co.uk/showthread.php?t=147605 http://www.weather-banter.co.uk/showthread.php?t=147604&goto=newpost Tue, 07 Sep 2010 07:48:28 GMT I've been looking at the graphic:

http://www.wetterzentrale.de/pics/MS_-251_ens.png

What is the scale on the LH side running from P0 to P20, please?

Hugh

--

Hugh Newbury

www.evershot-weather.org

]]> uk.sci.weather (UK Weather) Hugh Newbury http://www.weather-banter.co.uk/showthread.php?t=147604