I'm talking specifically about the UK. When's the Jet Stream expected to move south over the UK? I love cold weather and snow so I want to know if it's going to get cold anytime soon? I know loads about the weather but I need someone to have someone who knows what the're on about answering this :) ???
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To answer your question, Jack, I'll have to look at weatheronline.co.uk and ... perhaps you can do it together with me.
Let's go there and select Expert Charts from the left-hand menu.
Select the Europe map on the top and what you see now is the NOAA GFS model.
What I usually do then, is to look at the Jet Stream at height 300 hPa from the Hemisphere sub-menu.
When you do that, you see that the polar front and the jet streams on the top of it, are curling into a big Rossby wave over central Europe. UK is now right under the jet streams, with temperate air pushing north on the west side, and polar air pushing south on the east.
But by Saturday. the polar front will be over mid-France and south of us (I live in southern Norway).
But there is a low pressure predicted to be over Ireland and that will bring mild and moist air from the Atlantic since the geostrophic wind spins counter-clockwise around it.
Incidentally we have cold weather now, in Norway, with temperature down to -10 (near the Oslo coast, it gets much colder in the mountains!) but the forecast for the next week-end is for ... rain and a couple of degrees.
This is very strange because I have lived 38 years in Norway (I was born and grew up in Belgium) and the Norwegians talk about "kakelinje" which is a spell of mild weather a few days before Christmas. Actually "kake" means ... yes, cake, thank you! ;-) and this is because it usually coincide with the time the housewife make their traditional Christmas cake. But I can't explain it in meteorology and that is very irritating! ;-)
Let's go there and select Expert Charts from the left-hand menu.
Select the Europe map on the top and what you see now is the NOAA GFS model.
What I usually do then, is to look at the Jet Stream at height 300 hPa from the Hemisphere sub-menu.
When you do that, you see that the polar front and the jet streams on the top of it, are curling into a big Rossby wave over central Europe. UK is now right under the jet streams, with temperate air pushing north on the west side, and polar air pushing south on the east.
But by Saturday. the polar front will be over mid-France and south of us (I live in southern Norway).
But there is a low pressure predicted to be over Ireland and that will bring mild and moist air from the Atlantic since the geostrophic wind spins counter-clockwise around it.
Incidentally we have cold weather now, in Norway, with temperature down to -10 (near the Oslo coast, it gets much colder in the mountains!) but the forecast for the next week-end is for ... rain and a couple of degrees.
This is very strange because I have lived 38 years in Norway (I was born and grew up in Belgium) and the Norwegians talk about "kakelinje" which is a spell of mild weather a few days before Christmas. Actually "kake" means ... yes, cake, thank you! ;-) and this is because it usually coincide with the time the housewife make their traditional Christmas cake. But I can't explain it in meteorology and that is very irritating! ;-)
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Tonight and tomorrow is when it is expected to be coldest, and then it starts getting milder after rain on Friday.
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watch the weather reports dear.. that's how you find out.