2013 seems to be the summer that just keeps on giving doesn't it? Cant help feeling that we must be due an extended period of zonality sometime this coming Autumn : the weather always balances itself out in the long run.
Originally Posted by: Stormchaser
Believe it or not we're currently seeing a lot of classic summer zonality where the jet tracks either across the north or more towards Iceland, leaving a lot of reasonable weather across much of the UK. It also featured in July for a large part of the month. Back in June the jet wasn't tracking so far north and actually spent about half the time splitting somewhere to our west, with a lot of energy going right down towards Africa. This allowed for some blocking to our NE at times.
In fact, looking at the synoptics in general since around mid-April, we're due an extended period of -ve NAO
In the 12z GEFS tonight, there are some signs of HP pulling back west and possibly heading NW. I think that this is more likely to occur after a period of HP displaced from the Azores and lounging about across the UK or just to the east - more in line with the GFS and ECM operational runs.
September can either bring in autumn at pace or extend the summer for many more weeks. My own instincts are telling me that in 2013 it will have a good go at the first and then switch quite rapidly to the second.
Originally Posted by: briggsy6