All Change Next WeekAdded : Wednesday at 13:40 Ok, we have a couple of rather non-descript weather days to get through, but the models are hinting at changes afoot with regards to the weather and a few things which you need to keep an eye on in these scenarios.
Don't get too bogged down in the detail of the charts over the next few days, it's better if you take a step back and view the overall patterns which the models are suggesting.
Right, first up is the Scandinavian high which is now starting to establish itself across... well... Scandinavia :-
Keep that in your mind for a moment whilst we take a look at the charts for the start of next week :-
A rather deep area of low pressure near Iceland will send an impressive wake of colder air behind it throughout next week. The origin of this air is across Canada and it's cold, like.. very cold at the base, but fortunately, the Atlantic warms up the base of it into what we call heavily modified boundary conditions.
By Tuesday we have this :-
Note the impressively long fetch stretching from London to the Southern tip of Greenland. Not just that, but the colder air is streaming in too and in these scenarios, meteorologists will be looking for disturbances or short wave troughs which develop within such a long fetch. Trust me, nature won't give you a homogenised 1,500km fetch without putting something in the mix.
Note though, that by Tuesday and the high pressure which was across Scandinavia has moved a little to the East and is now across Siberia :-
Towards the end of next week and we are in la la land as far as the models are concerned, but the GFS ► continues to keep high pressure to the East :-
It's not just the GFS ► either. The ARCUS super ensemble shows something similar :-
So, colder next week thanks to a rather brisk Northwesterly, but while you are watching the stuff rolling in from the West, keep one small beady eye out for developments to the East in the longer range... Something might be brewing.. But then again, it might not be.
METEOROLOGIST : MARSH |