25/11/2017 Weather for the Week Ahead

Hello again. Cold weather is going to dominate over the week ahead.

Now, earlier on in the week, we had flooding in Cumbria,

for example, a lot of rain around, but this was Friday

morning in Ambleside - not rain but snow and some ice around, too.

And cold winds are strengthening during Saturday,

blowing more of these wintry showers not just into Western Scotland

and Northern Ireland but perhaps into western parts of England

and Wales, a few showers getting into the Midlands, too.

Snow more likely over the hills.

But it will feel cold. The winds will be stronger on Saturday,

and those temperatures, this is what it will feel like,

close to freezing there across the northern half of the UK,

where it remains windy, it remains showery.

There's a continued risk of some icy patches around, too.

The showers do tend to ease down overnight, the winds tend to get

a little more westerly, temperatures perhaps not quite

so low by Sunday morning, but there's still the risk of a frost,

particularly in the countryside.

And as we run through the day, you can see we've got a line of showers

on Sunday over the Irish Sea into Lancashire,

possibly Cumbria, all the way into the north Midlands,

but fewer showers, on the whole, more places will be dry,

sunshine across the eastern side of the UK.

But out to the west, cloud will be increasing, and after that

chilly start, it means temperatures will be slow to rise during the day.

And the cloud is coming in ahead of that weather system there.

This is a bit of a change as we move into Monday.

That weather system moving down across the UK will sweep rain

south-eastwards across all areas overnight, a wet start,

still, on Monday morning across southern England.

It may take a while for the rain to clear the south-east.

But it does clear away from other areas,

with a westerly wind following on from that and sunshine and showers.

Now, we're going to find things changing

again as we move into Tuesday.

That little weather feature there could bring some showers

overnight and keep a bit of rain going in the south-east

on Tuesday, but after that clears through, you can see where the

winds are coming from, all the way from the north once again.

That means it's going to be turning colder,

those temperatures dropping away, and we'll start to see

the showers in the north turning wintry once again.

So, as we run into Tuesday from Wednesday, we've got

high pressure out towards the west,

low pressure in the east across Europe.

That means - you can see the isobars there running north to south -

the winds coming down from the north.

A slight change in the wind direction is going to change

the pattern of the showers.

It looks like we're going to find more showers this

time down the eastern side of both England

and Scotland, coming in off the North Sea.

This is where we'll have the strongest winds.

There could be some winteriness,

particularly in the North York Moors.

And that's a similar pattern, really, for Thursday, I suspect,

although we may see some of these showers coming down

and clipping Pembrokeshire and possibly into Devon and Cornwall.

But temperatures on the low side.

So, what's happening? Well, as we look further ahead,

it looks like we're going to keep this cold air plunging down

across the UK with northerly winds. Mild air is not far away.

It comes in the shape of an area of high pressure

and the Atlantic winds behind it.

That high pressure is blocking off any movement,

though. Possibly later next weekend that high pressure may get

a little closer to the UK, but really, ahead of that,

and if that does happen, we're still going to find northerly winds,

it's still going to be cold - not exceptionally cold, nothing unusual.

There'll be wintry showers, more of them

down the eastern side of the UK,

but once again not just cold by day - there's a risk of frost at night.