Well this is the latest winter thread, of which we've been doing for the last 5 years on OCUK! Last winter was a complete bust, even though places in NE europe had a huge surge in snow coverage and the OPI was very negative, it turned out to be a snowless winter for many parts of the UK. ( Not all but most )
So here we are with some early starters..
http://www.chorleyweather.com/strong-arctic-summer-heights-linked-to-cold-uk-winter/
https://forum.netweather.tv/topic/72635-the-seasonal-forecast-thread/page-36
So here we are with some early starters..
So with July 2015 collecting figures of -1.08 on the AO index and a huge -3.14 on the NAO index, this puts 2015 the same category as 50,62,09 which all had very cold winters. 2015 would have to run against 65 years worth of data should it be mild and that wont be easy to do but its not impossible. Using historical analogues also shows a strange similarity between July 2009 & July 2015, especially for the North Atalntic and Europe.
http://www.chorleyweather.com/strong-arctic-summer-heights-linked-to-cold-uk-winter/
I would expect that once this developing cool anticyclonic episode comes and goes, the rest of the autumn could become stormy due to interactions between a depressed jet stream and the remnants of the cold pool in the east-central North Atlantic. That may partially disrupt the cold pool but if the feature remains even 50% as robust as it is now, I think the winter could be an exciting mixture of stormy and cold blocking episodes. Will post a winter forecast around the usual time (for me) of mid-October.
https://forum.netweather.tv/topic/72635-the-seasonal-forecast-thread/page-36