Pacific - Looking at the west Pacific, we see a cold/warm/cold tripole (bottom up) which bodes very well with a +QBO for a weak and amplified Jet Stream once ice development occurs over the Pacific side of the Arctic, with a +WPO (higher than average pressure over the western Pacific), this also indicates a southerly tracking Jet Stream exiting Aisa promoting as strong Siberian High. In the eastern Pacific we are seeing a classic La Nina signal developing (like last year we should see a cold anomoly south of Alaska which in combination with La Nina should lead to troughing over the western USA, but much further south than normal (expect a bumper season in the Rockies). In conclusion the Pacific is favourable for cold outbreaks once ice development occurs.
Atlantic - Looking at the Atlantic i am very pleased, we have cold anomolies developing across the Tropics with a very cold anomoly off Newfoundland and warm anomolies over Western Greenland, this indicates a southerly tracking Jet Stream exiting the USA with a -NAO signal in place, the fly in the ointment being that we have warm anomolies east of Greenland where we would want cold anomolies, this could indicate that the core of high pressure will be close to us as opposed to west of us.
Looking ahead to winter, we want the Pacific to carry on the way it is going and the Atlantic tropics to cool further with the cold anomoly off Newfoundland to develop/get even colder, though we do need to lose the warm anomolies east of Greenland otherwise we could end up with high pressure bang on top of us which in winter means cold, dry but very dull.
There tends to be a lag of around 20 days, and right now we do have a fairly strong thermal gradiant over the Pacific, so i would say that we will see a high over/east of us with low pressure probably close enougth to bring large amounts of rain for the west of the UK.
http://forum.netweather.tv/topic/62702-sea-surface-temperatures/page__st__17
Daarnaast staat in de nieuwe Weerspiegel een aankondiging m.b.t. o.a. wintervoorspellingen.
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