An added bonus this week with two weather related emails !!. (I know the excitement is over-whelming)
I’ve attached a pdf summarising the weather stats from The Oxfordshire (thanks as always Sean) for year to date end of June 2011 vs. the same period last year and it makes interesting reading. You’ll see from the graphs that;
- 2011 rainfall is 96% of 2010 – So pretty much the same amount of rain year to date, but the pattern is very different.
- 2011 E.T loss is 23% higher than 2010 – this is the major change in 2011 as the warmer temperatures have evaporated more moisture from the soil and the plant.
- 2011 moisture deficit is 120% higher than 2010 – currently we have 4″ (100mm) less moisture in the soil than the same time last year, with the cumulative moisture deficit standing at 7.3″ in 2011 vs. 3.3″ in 2010. This explains why outfield areas are going under stress so quickly after rain because the moisture reservoir in the soil has been severely depleted.
I appreciate this is just a snapshot from one part of the country, but it does highlight how different this year is than last.
Mini Weather Update
As I sat reading New Scientist last night, trying to warm up after spending an evening in a boat shivering on Eyebrook reservoir, (Is it really July?) I did smile when I glanced upon the article relating to this years drought and the statement that the exceptionally dry Spring was due to a faltering of the jet stream, a blocking event in other words. Those of you who’ve followed this blog will know I’ve been on about this for a good while now, highlighting it as an explanation for the last two very hard winters we’ve received. Sadly it looks like Paddy Power have now clicked on as they’re not taking any bets on a White Christmas for Dec 2011 !!!.
The low pressure system that I referred to on Monday as likely to affect the early part of next week’s weather has developed much quicker than predicted and is now due to move down over the U.K and Ireland this weekend, so expect a wet Saturday and Sunday, particularly p.m. Rain is now due to reach Ireland on Friday lunchtime and move south and eastwards. The orientation of the low pressure means it is much more likely to bring rain to the Midlands, South and South-East of the U.K than previous low pressure systems. They’ll be more lighter rain around at the start of next week, then it’ll settle down, but still feeling cool as the winds move back into the North-East. For those planning summer holidays late in July, there is a large high building in the Atlantic and this may just bring a very warm end to what will have been a cool and lack-lustre July.