Ian Currie wrote:
It is remarkable how many instances of storms becoming inactive and/or not
reaching areas to the south and east of say the north fringes of London
this year where incidentally the highest temperaturea are often located. At
least a dozen times since May and probably more and of course a good example
tonight. This pattern has been observed with increasing frequency in recent
years and in my opinion reflects a slow northward shift of areas of
subsidence with few storms forming over the north of France and moving north
to London.
I expect an increasing amount of thundery developments to occur later in the
year after mid September /October in the SE reflecting a semi Mediterranean
like regime. It is not conclusive proof of climate change but it is in my
opinion a significant signal similar in importance to say a lack of October
snow across the south compared to previous centuries within the Little Ice
Age.

Ian Currie-Coulsdon
www.frostedearth.com

Yes, I agree that the best action seems now to be in the north,
and not just this year either. It is certainly indicative of a
circulation change with summers in the south now rather bland and warm
and, especially in July, considerably drier.
Are there any definite figures which could show that the region
of strongest thermal contrast in the large-scale circulation in summer
has moved north?

Tudor Hughes, Warlingham, Surrey.