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Old June 22nd 04, 10:03 AM posted to uk.sci.weather
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Default Wednesday's Low

I see the current run now takes it down to 987hPa.Overnight development rather rapid with the messy
baroclinic zone now well organised into a comma shaped mass-
http://www.sat.dundee.ac.uk/abin/pic...2/0557/ch2.jpg

--
regards,
david
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Old June 22nd 04, 11:38 AM posted to uk.sci.weather
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Default Wednesday's Low


"Waghorn" wrote in message
...
I see the current run now takes it down to 987hPa.Overnight

development rather rapid with the messy
baroclinic zone now well organised into a comma shaped mass-

http://www.sat.dundee.ac.uk/abin/pic...2/0557/ch2.jpg

--


A difficult period for the 'fine-tuning' forecaster this one: the
general forecast looks good, but getting the detail right for such as
Wimbledon is tricky. Note the dark slot on latest WV imagery driving
east across area FitzRoy and the rapidly cooling & expanding tops west
Biscay.

http://oiswww.eumetsat.org/IDDS-cgi/...=1,v=400, p=0

The surface 0600Z analysis gives a hint at just how complex things are!

http://www.weather.org.uk/charts/UKCpf000.gif

Martin.


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Old June 22nd 04, 01:14 PM posted to uk.sci.weather
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Default Wednesday's Low

Note the dark slot on latest WV imagery driving
east across area FitzRoy and the rapidly cooling & expanding tops west
Biscay.
A GFS forecast run of 310K EPV I saw a couple of days ago-
http://bricker.met.psu.edu/trop-cgi/...hour=Animation
seems to have depicted this anomaly well.
A second one comes out of the Canadian maritimes to form the weekends 'new' low

NOAA shows a hook on the cloud head
http://www.sat.dundee.ac.uk/abin/pic...2/1101/ch2.jpg
this Quiksat pass,at nrly the same time shows the winds
http://manati.wwb.noaa.gov/dataimage...ms/WMBas30.png


--
regards,
david
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Old June 22nd 04, 01:24 PM posted to uk.sci.weather
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Default Wednesday's Low

.....and now to the NW of the cloud head striations in ,I presume,the jet exit-
http://www.sat.dundee.ac.uk/pdus/BI/...21200BI1_g.jpg

--
regards,
david
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Old June 22nd 04, 02:09 PM posted to uk.sci.weather
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Default Wednesday's Low

"Martin Rowley" wrote in message
snip

A difficult period for the 'fine-tuning' forecaster this one: the
general forecast looks good, but getting the detail right for such as
Wimbledon is tricky.


Outside of the rain/showers, I was wondering if strong winds alone can stop
play ?

Jon.




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Old June 22nd 04, 02:28 PM posted to uk.sci.weather
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Default Wednesday's Low


"Jon O'Rourke" wrote in message
...
"Martin Rowley" wrote in

message
snip

A difficult period for the 'fine-tuning' forecaster this one: the
general forecast looks good, but getting the detail right for such

as
Wimbledon is tricky.


Outside of the rain/showers, I was wondering if strong winds alone can

stop
play ?

.... Certainly going to be difficult over the next couple of days, but I
can't bring to mind an occasion when that happened - it is usually rain
and/or bad light that will stop things. I think *usually* these other
weather factors will interfere; it may have happened in other
tournaments though. (What will Sue say if 'bad wind stops play!)

Martin.



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Old June 22nd 04, 02:42 PM posted to uk.sci.weather
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Default Wednesday's Low


"Martin Rowley" wrote in message
...

"Waghorn" wrote in message
...
I see the current run now takes it down to 987hPa.Overnight

development rather rapid with the messy
baroclinic zone now well organised into a comma shaped mass-


http://www.sat.dundee.ac.uk/abin/pic...2/0557/ch2.jpg

--


A difficult period for the 'fine-tuning' forecaster this one: the
general forecast looks good, but getting the detail right for such as
Wimbledon is tricky. Note the dark slot on latest WV imagery driving
east across area FitzRoy and the rapidly cooling & expanding tops west
Biscay.


http://oiswww.eumetsat.org/IDDS-cgi/...=1,v=400, p=0

The surface 0600Z analysis gives a hint at just how complex things are!

http://www.weather.org.uk/charts/UKCpf000.gif

Martin.


Could anyone tell me what it means when the met plot an occluded front as in
the one just SW of Cornwall on the chart above, but it has no line
associated with it, just the symbols?

Thanks,
- Michael


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Old June 22nd 04, 03:04 PM posted to uk.sci.weather
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Default Wednesday's Low


"MichaelJP" wrote in message
.. .
snip

Could anyone tell me what it means when the met plot an occluded front as

in
the one just SW of Cornwall on the chart above, but it has no line
associated with it, just the symbols?


In this case it indicates the feature in undergoing frontolysis.

See http://homepage.ntlworld.com/booty.weather/FAQ/AF.htm

Jon.



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Old June 22nd 04, 03:22 PM posted to uk.sci.weather
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Default Wednesday's Low


"Martin Rowley" wrote in message
...
Snip

... Certainly going to be difficult over the next couple of days, but I
can't bring to mind an occasion when that happened - it is usually rain
and/or bad light that will stop things. I think *usually* these other
weather factors will interfere; it may have happened in other
tournaments though. (What will Sue say if 'bad wind stops play!)

Martin.


Lol ! Must admit I can't think of it happening either.

Already a downed branch in evidence here; doors banging etc - probably
should close the windows a bit
:-)

Jon. (east Devon)


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Old June 22nd 04, 03:22 PM posted to uk.sci.weather
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Default Wednesday's Low


"Jon O'Rourke" wrote in message
...

"MichaelJP" wrote in message
.. .
snip

Could anyone tell me what it means when the met plot an occluded

front as
in
the one just SW of Cornwall on the chart above, but it has no line
associated with it, just the symbols?


In this case it indicates the feature in undergoing frontolysis.

See http://homepage.ntlworld.com/booty.weather/FAQ/AF.htm


.... and a full depiction of the frontal symbology he-

http://homepage.ntlworld.com/booty.w...frontal_ex.htm

Martin.


--
FAQ & Glossary for uk.sci.weather at:-
http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm




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