This is the latest outlook for the next four weeks from the Japanese Met Agency the JMA. It is not meant to be a forecast but a general outlook. I have added the 3 images together and rotated them and added a red line so you can see the UK. Blue colours are low pressure area’s and oranges high pressure area’s.
Week 1. 21st February to 27th.
SA large area of high pressure with a ridge is over the UK. Deep low pressure trough over the Atlantic and Eastern side of Europe. This will bring temperatures around 3 to 4 degrees above what you would expect for the end of February and it will also be very dry.
Week 2. 28th February to 6th March.
It looks like a change will take place with low pressure now stretching from the Atlantic over the UK. There is a small area of high pressure over central Europe. It looks like we will see rain and showers with above average rain fall. There is a slight drop in temperature but still around 1-2 degrees above average.
Week 3-4. 7th March to 20th.
It looks like during this period high pressure will be over the UK from the midlands southward. This would bring slightly above average rainfall and temperatures around 1-2 degrees above what you would expect for mid March. This setup would bring a South westerly airflow bringing showery mild conditions.