This is the outlook for the next four weeks issued by the Japanese Met Agency. This is just one model the JMA but followers will know that I normally publish it every Thursday or Friday. I have added the three images together and I have rotated them and added a red line so you can see the UK. Blue colours are low pressure areas and orange’s colours are high pressure areas.
Week 1, 11th to 17th January.
A large, deep low pressure system will be in control and it looks like we will see the air being drawn down from around Greenland. This will bring temperature below average for early January and above average rainfall, some of this will be wintry next week.
Week 2, 18th to 24th.
Low pressure looks like it will remain in control, with temperatures around average. Again we will see above average rainfall some of this will be wintry.
Week 3-4, 25th to 7th February.
This is a two week period so we would see a change taking place at some point. It looks like high pressure will be to the South of the UK. This shows we would start to see temperatures rising 2 or 3 degrees above average with air moving up from the South. Rainfall looks slightly above average.