20/08/2014 Weather for the Week Ahead

Hello. We're going to see some changes with our weather patterns

in the longer term, which means particularly as we go

into the early part of next week, it won't be as cold at night.

At the moment, it is unusually cold out there.

That's because we've got this weather set-up.

Big area of high pressure to the West,

large area of low pressure across Scandinavia.

Around that low, the winds are coming down from the North.

First thing in the morning,

we'll be widely, in rural areas,

down to just four or five degrees.

But there is a bit of strength still in the sunshine

and most of us will start Wednesday

with some blue sky.

It'll be another day of sunny spells and scattered showers.

At first, the showers across Wales and Southwest England

becoming more widespread through the afternoon,

but they will be scattered

and many places will avoid them.

In the sunny spells, temperatures struggling.

15 to 16 degrees, maybe 19 or 20

in the Southeast.

Tomorrow evening, showers fade in the South.

More persistent rain is set to arrive

across Western parts of Scotland

and that will continue to trickle South

across much of Southern Scotland

and parts of Northern Ireland by dawn.

With more cloud here, it won't be as cold.

Further South, again, towns and cities

may stay in double figures,

but in rural areas across Southern and Eastern England,

we could again be as low as just

four or five degrees.

High pressure tries to hold on in the South on Thursday

but this little weather front

continues to push Southwards,

bringing outbreaks of showery rain

across Southern Scotland

and slowly into Northern England.

Looks like the winds have changed direction,

coming from the West on Thursday,

but you can follow them round.

Where they originally come from is still the North,

so it's still going to feel fresh.

Again, temperatures below average

at just 14 or 15 degrees.

Some sunny spells in the Southeast

may see highs of 18 or 19.

That little weather feature tries to pull away on Friday.

A cold front dragging its heels at first

across the Southeast

could provide some outbreaks of rain.

For most,

another day of sunny spells and showers.

But again, the winds are coming down from the North and so those

temperatures again are going to be below average -

15 or 16 degrees.

Cold start to the weekend.

Still a few showers across parts of the East.

But actually, for most,

Saturday looks dry and bright with lighter winds.

Once we get a bit of sunshine,

those temperatures will start to climb.

The start of the weekend looks pretty good.

High pressure moving in across the UK.

There is this low trying to push in,

but it looks like it is going to take

quite a while before that comes in across Western areas during Sunday.

And for the majority,

Sunday will feel a little bit warmer

and it is dry and bright again.

So we are going to see subtle changes.

At the moment, in the next few days,

the jet stream's fairly weak.

It's that fast-moving air high up in the atmosphere.

It's to the South of the UK,

allowing the chilly air across the country

and that mixture of sunshine and showers.

As we go towards the weekend, the early part of next week,

the jet stream looks like picking up in force, becoming more zonal,

more in from the West.

And when this happens,

it tends to drag in areas of low pressure from the Atlantic.

Might not be in exactly this position,

but with it coming in from the West,

it is more likely to bring

low pressure systems

across or to the North of the UK.

So the winds will switch from a Northerly

to a more Westerly direction.

If this high pressure is a little bit further North, though,

we could actually see some

slightly warmer conditions,

particularly across the Southeast.

But with low pressure nearby, that means we will often see

showers across the country for the early part of next week.

Often quite windy, but it won't be as cold as it is right now,

certainly not through the course of the night. That's all from me.

Always plenty more available online.