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Old December 23rd 12, 09:42 PM posted to uk.sci.weather
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On Sunday, 23 December 2012 08:39:12 UTC, Phil Layton wrote:
Only another 60mm to go before the end of the year!



RR 20.2mm yesterday Tx 12.0c



Phil

Guildford


804.9 mm from 1st January to 23rd December 2012 at West Guildford. NOT overly impressive after 1193.0 mm in 2000!

This year, totals have exceeded 25.4 mm (1") on only 2 days: 10th June; 35.4 mm (missed event while on holiday much like the 5th June deluge in 2011) and 23rd September; 28.5 mm.
In 2000, I recorded 25.4 mm on 9 days and 4 of them were in a 9 day period (29th October ~ 6th November)with one reaching 51.0 mm (6th). There were locally more impressive rainfall events in the drier 2010(667.4 mm)than in 2012!

Can anyone come up with the mechanism why this part of S.E. England has repeatedly missed the higher totals in 2012, which has been a regular feature since the second part of June. Is it a simple effect such as the depressions and fronts moving on a more N.E. course defined by the jetstream, hence deluging Cornwall and Devon while the S.E. just gets long hours of drizzle. Whereas in 2000, the depressions were on a more southerly latitude and pushed east more quickly so the large totals were more widespread over southern England.

Also it seems that the 2012 depressions and rain events are more intense than one would normally expect, further west and although wet further east, the fronts are 'rained out' by the time they get to Guildford. This could be due to less moisture entering the system as they have moved away from the source of the relatively warm Atlantic. I have never seen such a pronounced rain-shadow effect between west and east as in 2012.


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Old December 23rd 12, 11:28 PM posted to uk.sci.weather
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On 23/12/2012 08:39, Phil Layton wrote:
Only another 60mm to go before the end of the year!

RR 20.2mm yesterday Tx 12.0c

Phil
Guildford



864mm here. Against an anticipated average of 550mm per annum, that is a
bit over the top. Over 50% over the top actually.

Little chance of a metre here though. (Famous last words?)

jim, Northampton

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Old December 27th 12, 11:01 AM posted to uk.sci.weather
Ken Ken is offline
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"willie eckerslike" wrote in message
...
On Sunday, December 23, 2012 4:25:07 PM UTC, Ken wrote:
"Len Wood" wrote in message


...


1300.7 mm here to 22 Dec.


A Wembury record.




130% of 2001-2010 yearly average, 1002.6 mm




Len


SW Devon




Here in East Bristol (typical suburban garden exposure) we exceeded our

highest calendar year figure since 1987 early yesterday. 2012 figure is

currently 1288 mm (beating 1255.5 mm in 2000).



Ken



Longwell Green, Bristol

ST667709

40 m asl


I am not far from you, and mine is 1350mm, which is made more dramatic by
the fact that only 100mm fell between 1 Jan and 31 Mar this year.


Where exactly are you Willie?

Here, now around 1315 mm for the year of which 134.9 mm fell from January to
March.

--
Ken

Longwell Green, Bristol
ST667709
40 m asl



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