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Old January 19th 04, 10:22 PM posted to uk.sci.weather
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Default 18z DT GFS

It's started to come through now and continues to show the trend
of a N wind veering NE. The upper ridge to the W is thrown
further N at T+144/156, Miles' Extension ?

Joe



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Old January 19th 04, 10:32 PM posted to uk.sci.weather
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Default 18z DT GFS

Joe (or anyone else)
Could you tell me what exactly a Mile's extension is please?
I heard it mentioned last winter sometime by Will.

I notice 18z is very different, but still very cold - the low in the
Norwegian Sea seems to be the main difference...very interesting!

Ta,
John

"Joe Hunt" wrote in message
...
It's started to come through now and continues to show the trend
of a N wind veering NE. The upper ridge to the W is thrown
further N at T+144/156, Miles' Extension ?

Joe




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Old January 19th 04, 10:37 PM posted to uk.sci.weather
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Default 18z DT GFS


"Joe Hunt" wrote in message
...
It's started to come through now and continues to show the trend
of a N wind veering NE. The upper ridge to the W is thrown
further N at T+144/156, Miles' Extension ?

Joe



The Scandi High has gone east though, so no screaming easterlies


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Old January 19th 04, 11:00 PM posted to uk.sci.weather
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Default 18z DT GFS


"John Payne" wrote in message
...
Joe (or anyone else)
Could you tell me what exactly a Mile's extension is please?
I heard it mentioned last winter sometime by Will.

I notice 18z is very different, but still very cold - the low in the
Norwegian Sea seems to be the main difference...very interesting!

Ta,
John


Hi John,

Mile's extension is a plunge of cold air south over the UK in response to
warm
advection north over Greenland. I'm sure Will can explain better. Sadly
Google
brings nothing up on the subject.

HTH Joe


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Old January 19th 04, 11:02 PM posted to uk.sci.weather
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Default 18z DT GFS

Ok - thanks Joe!

"Joe Hunt" wrote in message
...

"John Payne" wrote in message
...
Joe (or anyone else)
Could you tell me what exactly a Mile's extension is please?
I heard it mentioned last winter sometime by Will.

I notice 18z is very different, but still very cold - the low in the
Norwegian Sea seems to be the main difference...very interesting!

Ta,
John


Hi John,

Mile's extension is a plunge of cold air south over the UK in response to
warm
advection north over Greenland. I'm sure Will can explain better. Sadly
Google
brings nothing up on the subject.

HTH Joe






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Old January 19th 04, 11:12 PM posted to uk.sci.weather
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Default 18z DT GFS

On 19 Jan 2004 22:22:23 GMT, Joe Hunt wrote in


It's started to come through now and continues to show the trend
of a N wind veering NE. The upper ridge to the W is thrown
further N at T+144/156, Miles' Extension ?


Joe - there is a clear consistency developing in the models now. Here is
the GFS 850mb 18z chart for Sunday:

http://www.wetterzentrale.de/pics/Rtavn1442.html

and here is the ECMWF surface chart for same day:

http://www.ecmwf.int/products/foreca...plots!latest!/

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 19/01/2004 23:12:30 UTC
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Old January 19th 04, 11:49 PM posted to uk.sci.weather
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Default 18z DT GFS

On Mon, 19 Jan 2004 22:37:22 -0000, "Joe Bedford"
wrote:


"Joe Hunt" wrote in message
...
It's started to come through now and continues to show the trend
of a N wind veering NE. The upper ridge to the W is thrown
further N at T+144/156, Miles' Extension ?


The Scandi High has gone east though, so no screaming easterlies

Not on UKMO for Fri/Sat/Sun it hasn't... it has HP pushing W into
Scandi and it's developing cold Easterlies over the North Sea.

--
Dave


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