North Atlantic SST’s Dropping Sharply
By Paul Homewood
The succession of storms passing our way in the last few weeks has had a noticeable effect on sea surface temperatures. Below is the current position, showing a huge pool of very cold water throughout much of the North Atlantic.
If we contrast with the maps at the end of October & November, we can see just how much this cold pool has grown.
It is this expanding pool of cold water which has been responsible for the jet stream moving much further south.
Below is the jet stream forecast for tomorrow, as Storm Frank passes through. Notice how far south the jet stream is forced, before turning sharply north.
The Netweather forecast suggests that the jet stream will become much more zonal after Frank moves off. Below is the forecast for 8th January, which is reasonably typical for the next couple of weeks, and indicates that cold air will push south across the UK as high pressure builds.
(If you click on the link, it runs the animation).
By looking at the SST’s and jet stream, it is clear why we have had a run of wet weather in recent weeks. And the culprit is that cold pool of water, not global warming.