Spring has arrived!!

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Re: Spring has arrived!!

Postby Peter Walker » 2014 Mar 10, 09:23

20.1°C in Southend and people were in the sea.

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Re: Spring has arrived!!

Postby Len Wood » 2014 Mar 10, 19:51

High of 14.6C yesterday (9th)
High of 16.5C today (10th).

Warmest early March spell since 13th March 2000 when it reached 16.8C.
Len

Wembury, SW Devon coast
N50.33 W4.13
Altitude 83 m asl
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Re: Spring has arrived!!

Postby Len Wood » 2014 Mar 11, 20:05

The trouble is there has been a dramatic drop in temperature for many in the South and Midlands.
The cloud and chilly east wind has been the culprit.

Even here today in the lee of Dartmoor it only reached 11C.
And that is with the cloud dissipating after midday to give a sunny afternoon.
Len

Wembury, SW Devon coast
N50.33 W4.13
Altitude 83 m asl
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Location: Wembury, coastal SW Devon, 83 m asl

Re: Spring has arrived!!

Postby Graham Easterling » 2014 Mar 12, 09:32

Yes, the drop in temperature was very marked. In Penzance, where it remained mostly cloudy, even with the east wind descending off the land it only reached 9.0C (Already higher than that today).

Over on the north coast a nice hole developed in the cloud late morning (attached pic 11:00 in the dunes at Gwithian) but the temperature was still barely a degree higher. I think the sunny area was so small the air had little chance to warm. It was cloudy 4 miles upwind at Camborne, as well as just downwind near St Ives. as the air rose again.
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Graham

Penzance Weather Station
Grid Ref:
SW464231 - Post Code: TR18 4TP
19m AMSL - Aspect SSE
In a SE - NW orientated valley

23 Years of Penzance Weather Records : http://penzanceweather.atspace.com/weather.html
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Re: Spring has arrived!!

Postby Peter Walker » 2014 Mar 16, 20:51

Another beautiful day today - unbroken sunshine in Essex and a maximum of 20.9°C in my garden.
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Re: Spring has arrived!!

Postby greg_gruner » 2014 Mar 16, 21:42

Also in Farnborough - unbroken sunshine and max of 20.2C

This is also the 13th consecutive rainless day. If we get two more dry days (which is likely) we will have reached the official Met Office definition of "absolute drought". Given the winter that has just gone, this seems laughable. That definition is a poor one, as it takes no account of preceding weather. I am sure it is not used in other countries, such as the USA, where rain tends to fall on fewer raindays and 15 dry days is nothing unusual.
Greg Gruner
Farnborough, Hampshire
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Re: Spring has arrived!!

Postby Martin Rowley » 2014 Mar 16, 21:51

greg_gruner wrote:Also in Farnborough - unbroken sunshine and max of 20.2C

This is also the 13th consecutive rainless day. If we get two more dry days (which is likely) we will have reached the official Met Office definition of "absolute drought". Given the winter that has just gone, this seems laughable. <snip>


... so "laughable" that the definition hasn't been used by the Met Office for several decades - since the early 1960s I should think. It wasn't a Meteorological Office definition in the first place: the definitions (partial, absolute etc.) were first promulgated by the BRO in 1887.

Martin.
Martin Rowley
West Moors, East Dorset [ altitude: 17 m/56' ]
NGR SU 082 023: postcode BH22 0GB
50deg49min15secN, 01deg53min03secW
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Re: Spring has arrived!!

Postby greg_gruner » 2014 Mar 16, 22:45

OK, I'm glad that definition no longer stands. I must have read it in a textbook when studying meteorology in the seventies...
Greg Gruner
Farnborough, Hampshire
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Re: Spring has arrived!!

Postby Martin Rowley » 2014 Mar 17, 13:43

... interestingly enough, IMV it's not the definitions as they stand that are problematical - the various rules used to define such periods are useful as an 'accountancy' practice - to judge whether such spells have changed in frequency over time for example.

The 'problem' is the word 'drought'. Symons was quite correct in his usage of the word - the primary definition as I understand it relates to .. " continuous dry weather, absence of rain " etc., which is all that is being considered. It's the fact that the word has come to be associated with extreme stress as regards water availability for varying activities that caused the original definitions to lose credibility.

If Symons had used 'Absolute Dry Period', or 'Partial Dry Period' we might still be using them :-)

Martin.
Martin Rowley
West Moors, East Dorset [ altitude: 17 m/56' ]
NGR SU 082 023: postcode BH22 0GB
50deg49min15secN, 01deg53min03secW
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Re: Spring has arrived!!

Postby greg_gruner » 2014 Mar 21, 11:45

The dry spell reached 16 days - and was broken yesterday by the arrival of a cold front, which gave 2.5mm (running monthly total 11.7mm). The garden did the rain!
Greg Gruner
Farnborough, Hampshire
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