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The 2011-2012 'Drought Effect' thread.

#26 User is offline   Ian Williams 

  • Group: Warnings Team
  • Posts: 15197
  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Not sure where Stithians reservoir is getting its water from. Certainly not from the sky! [hehe]

Week ending:
30th January 2011
Week:
4
Total reservoir storage for the week:
96705 Ml (83.8%)
This week last year total storage was:
112465 Ml (97.5%)
Reservoir details
Historic Data
Reservoir
Net Capacity MI
Current Storage %
Last Year's Storage %
1995 Storage % 
Roadford
34,500
77.6
94.0
90.4
Colliford
28,540
83.6
99.8
88.4
Wimbleball
21,320
77.6
100.0
100.0
Stithians
4,967
100.0
99.7
98.1
Burrator
4,210
87.8
93.1
100.0

 


0

#27 User is offline   Ian Williams 

  • Group: Warnings Team
  • Posts: 15197
  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Having only had 47% of normal rainfall so far this month, reseervoirs although fairly healthy, still needing to keep an eye on, still dont understand Stithians data, maybe wrong?

Week ending:
6th February 2011
Week:
5
Total reservoir storage for the week:
96705 Ml (84.1%)
This week last year total storage was:
113307 Ml (98.2%)
Reservoir details
Historic Data
Reservoir
Net Capacity MI
Current Storage %
Last Year's Storage %
1995 Storage % 
Roadford
34,500
77.3
94.9
90.8
Colliford
28,540
84.4
99.9
89.8
Wimbleball
21,320
79.3
100.0
100.0
Stithians
4,967
100.0
100.0
100.0
Burrator
4,210
85.5
99.1
100.0

 


0

#28 User is offline   scrapemedic 

  • Group: Forum Managers
  • Posts: 3732
  • Joined: 29-December 04
  • LocationWest nor'west London

Posted --

Well I would expect the soil to be thick and clagggy at this time of year, its not usually a good time to be digging, but today i found the soil light and very friable, possibly as a result of the earlier cold weather breaking up the soil and the lack of rain recently drying it out. Good for me at the moment, I can catch up on my belated digging, but it won't be in a few months time when i start growing things. I have one of those Trug things, (like a bucket and holds about 20 litres of water), thats been sitting out for about three months, it was only three quarter full of fluid and most of that was rotten brussel sprout leaves. Much as would be happy for a month more without gallons of rain, if we don't get march storms and april showers, it could be a drier start to this year than it was last year, and that was drier than a dry thing.
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#29 User is offline   Foxy2 

  • Group: Registered Climate Users
  • Posts: 1098
  • Joined: 15-February 07
  • LocationHuntsham, Devon, 240m msl

Posted --

Heres an update on the situation locally. Listed are the driest winters in the series. Winter 2010 to 2011 is equal 3rd driest at present. Of the years listed, only 1976 had a dry spring and summer. 1989 had an average spring and dry summer. Otherwise, dry summers tend to follow wet winters.

1992 147.1
1976 150.6
2011* 203.2*
1997 203.2
1989 208.3
2006 217.3
1985 226.6
2005 231.9

(Year and rainfall in mm)

EDIT: Average winter rainfall over 46 years is 333.3mm!
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#30 User is offline   Ian Williams 

  • Group: Warnings Team
  • Posts: 15197
  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Unlike my temperature records which go back to Jan 1996, my rainfall records only go back to 2003, here they are for what they are worth, this is for my station in St Germans S.E Cornwall

This winter with 11 days to go i have recorded 238.8 mm so looks likely this winter will be the driest since 2005
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#31 User is offline   Foxy2 

  • Group: Registered Climate Users
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  • Joined: 15-February 07
  • LocationHuntsham, Devon, 240m msl

Posted --

Ian, I think your 2004 and 2005 winters are what I called 2005 and 2006! Mye quivalent figures for the two winters are 231.9 and 217.3mm. I see your winter and annual averages are similar to here. The persistent blockng over the southern UK at present does not bode well for spring rainfall!
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#32 User is offline   Ian Williams 

  • Group: Warnings Team
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  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Yeah sorry Andrew, Yes where it says winter 2003 that means Dec 2003 to Feb 2004 for example

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#33 User is offline   Nigel Bolton 

  • Group: Synoptic Discussion
  • Posts: 6897
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  • LocationDevon

Posted --

Very dry March so far.

N.


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#34 User is offline   scrapemedic 

  • Group: Forum Managers
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  • Joined: 29-December 04
  • LocationWest nor'west London

Posted --

You know I am certain it has rained round here but to look at the garden you would have a hard time believing that. I have had to refit the watering system despite the risk of frost damaging it, the soil in the pots is so dry the plants are looking wilty and possibly dead! The plants in the beds are not much better.
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#35 User is offline   Bluebreezer54 

  • Group: Frouks
  • Posts: 1933
  • Joined: 08-May 09
  • LocationNorthwood. NW London

Posted --

^^ Only recorded 2 days with measureable rainfall here this month Liz. Total accumulation 1.8mm ( Northwood )
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#36 User is offline   Ian Williams 

  • Group: Warnings Team
  • Posts: 15197
  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Reservoir levels are fairly healthy here in the SW, after a wet February which saw rain on 27 days out of 28 for my location St Germans. However its only rained 5 days this month on 3 days it were below 1.0mm, total sofar for St Germans is 14.9 mm. Plymouth Mountbatten total to date is 14.6 mm

Week ending:
20th March 2011
Week:
11
Total reservoir storage for the week:
101625 Ml (88.1%)
This week last year total storage was:
110442 Ml (95.7%)
Reservoir details
Historic Data
Reservoir
Net Capacity MI
Current Storage %
Last Year's Storage %
1995 Storage % 
Roadford
34,500
78.4
91.3
97.0
Colliford
28,540
87.3
98.9
97.1
Wimbleball
21,320
92.9
99.4
100.0
Stithians
4,967
99.8
97.6
100.0
Burrator
4,210
91.6
92.9
99.9

 


0

#37 User is offline   Howard Kirby 

  • Group: Forum Managers
  • Posts: 18348
  • Joined: 01-March 04
  • LocationNorth Herefordshire

Posted --

Soil drying out around here after recent sun, rivers look very low almost mid summer level now.

Just 7mm here all month.


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#38 User is offline   Howard Kirby 

  • Group: Forum Managers
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  • LocationNorth Herefordshire

Posted --


Jason Smith
Posted 23/3/2011 22:56 (#617920)
Subject: Lack of Precipitation - Rain
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Moderator

Location: Wick-Saint-Lawrence, Somerset

Has anyone noticed the small amount of rain we've had in the past month? It maybe worse in certain areas but I can vouch for the South West that we've had little and I bet some areas across the UK are worse or have had less than some too. I do recall someone stating that we were in for a dry year 2011 but can't remember where I was reading this and wondered if anyone else had seen this story?

 

I am well prepared though as my water butts are full from the Winter falls.


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StephenS
Posted 24/3/2011 01:20 (#617931 - in reply to #617920)
Subject: Re: Lack of Precipitation - Rain
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Same here, Jason - the river level is now the lowest it's been since we moved here last August. A few weeks ago, the reservoirs in this area were said to be about 75 per cent full. That's quite concerning at this time of year.
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Dave W
Posted 24/3/2011 10:48 (#617952 - in reply to #617920)
Subject: Re: Lack of Precipitation - Rain
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Executive

Location: Brighton, E Sussex

To the 20th March, Roadford, the SW's largest reservoir was 78% full. Input has remained the same as output since mid January.

(Message has 1 revisions)


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#39 User is offline   BUTTERFLY 

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Posted --

After about twice the average rainfall in February and about the average for March already reached here this month, the recent dry warmer spell has been welcome (although sadly it is to get cooler this weekend). Saw my first butterflies of 2011 today (single Small Tortoiseshells in my garden and at 2 other spots around Portadown).
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#40 User is offline   Inga 

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Posted --

Well, we are having the first fire of the year on Winter Hill (above Bolton). The grass is tinder dry and evidently catches light very easily.
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#41 User is offline   scrapemedic 

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  • LocationWest nor'west London

Posted --

Quote

Inga - 25/3/2011 19:25

Well, we are having the first fire of the year on Winter Hill (above Bolton). The grass is tinder dry and evidently catches light very easily.
That is the trouble when you don't get enough rain at this time of year. You have all last years died back grasses that are vulnerable to fire. It takes a long time for grasses to dry out naturally to get them to burn easy.
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#42 User is offline   Nigel Bolton 

  • Group: Synoptic Discussion
  • Posts: 6897
  • Joined: 23-May 04
  • LocationDevon

Posted --

Quote

scrapemedic - 25/3/2011 20:29

Quote

Inga - 25/3/2011 19:25 Well, we are having the first fire of the year on Winter Hill (above Bolton). The grass is tinder dry and evidently catches light very easily.
That is the trouble when you don't get enough rain at this time of year. You have all last years died back grasses that are vulnerable to fire. It takes a long time for grasses to dry out naturally to get them to burn easy.

Might also be the case in Oz in due course. After the previous very wet months, even well into the interior, Antipodean fauna growth must have surged. A return to drought conditions may bring a very serious risk of bush fires, assuming all the bunnies and sheep don't eat the grass first.

N. 


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#43 User is offline   Inga 

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Posted --

Quote

scrapemedic - 25/3/2011 20:29

Quote

Inga - 25/3/2011 19:25

Well, we are having the first fire of the year on Winter Hill (above Bolton). The grass is tinder dry and evidently catches light very easily.
That is the trouble when you don't get enough rain at this time of year. You have all last years died back grasses that are vulnerable to fire. It takes a long time for grasses to dry out naturally to get them to burn easy.


Yes, that's what it is, last year's dead grass. We also have an arsonist problem. They usually stick to wheely bins, but the moors are one big tempting playground for them.
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#44 User is offline   John Mason 

  • Group: Warnings Team Managers
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  • Joined: 04-March 03
  • LocationMachynlleth, Mid-Wales

Posted --

A most welcome wet morning here with steady light-moderate rain that will soak in, not just run off :)

Cheers - John


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#45 User is offline   Ian Williams 

  • Group: Warnings Team
  • Posts: 15197
  • Joined: 05-July 09
  • LocationSE Cornwall/ Plymouth

Posted --

Same here John, wet wet wet! Pushing it past the 15 mm mark for the whole month lol

Week ending:
27th March 2011
Week:
12
Total reservoir storage for the week:
100454 Ml (87.1%)
This week last year total storage was:
111391 Ml (96.5%)
Reservoir details
Historic Data
Reservoir
Net Capacity MI
Current Storage %
Last Year's Storage %
1995 Storage % 
Roadford
34,500
77.8
91.6
96.2
Colliford
28,540
87.0
99.8
97.2
Wimbleball
21,320
92.1
99.3
100.0
Stithians
4,967
98.1
100.0
99.5
Burrator
4,210
85.1
99.7
99.5

0

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