17/08/2017 Weather for the Week Ahead

We've seen a bit of sunshine for the first half of the week,

but more rain to come in the second half.

By the end of the weekend, some tropical air.

We've got overnight rain to clear away from southern

and eastern England on Thursday, then the cloud breaks up.

As it warms, we get some sunshine and trigger

showers in southern England, Wales and into the Midlands.

Northern England and southeast Scotland may stay dry

and quite sunny. It'll feel warmer here too.

We're then back into showers for western Scotland

and Northern Ireland.

Some of those could be on the sharp side too.

Highs of 23 degrees at best.

Showers continue into the evening and overnight.

We see the showers getting more organised into a spell of heavy rain

across Northern Ireland, moving into northern England and Scotland too.

Further south, clearer skies, but not too cold.

Lowest temperatures probably in Northern Ireland, 11 degrees or so.

Early rain for northern England and up into Scotland,

moves into the Northern Isles, then it's sunshine

and heavy showers, before we get another dose of rain moving rapidly

across Northern Ireland and over the Irish Sea later in the afternoon.

Further south, and east, more sunshine between those showers,

but temperatures will be a bit lower on Friday.

21 in London, only 15 in Glasgow.

Over the weekend, I think we'll see more sunshine at times,

but, for the first half of the weekend,

some windy conditions and showers before we get a spell of rain

towards the latter part of the weekend.

The blustery showers coming around this area of low pressure.

You see quite a few isobars on the charts.

It's going to be quite a windy day for many on Saturday.

Not so bad in the south, where it may be dry. Decent sunshine.

Further north, we'll have showers,

perhaps some more persistent rain in the far north of mainland

Scotland and up towards the Northern Isles too.

And then, as we move to the second half of the weekend,

this is where the rain later bit comes in,

and that's going to come courtesy of Hurricane Gert.

For the moment, that's across the other side of the Atlantic.

It's not a powerful hurricane and it won't be a hurricane

as it heads towards our shores,

but what it will do

is combine with a regular area

of low pressure

that we've got across the eastern side of Canada,

and the two will spin

and chase their way across the Atlantic towards the UK,

bringing a lot of cloud,

picking the winds up a bit, and bringing some rain too.

It's the rain that could be quite heavy,

but we're not quite sure where it's going to land first of all.

Looks like Northern Ireland initially,

and then spilling northwards and eastwards,

and perhaps towards the southeast of England later on in the day.

So what's left of that tropical air and hurricane Gert all tied in

with this area of low pressure, and that will still be around on Monday.

So some more persistent rain perhaps moving

northwards across Scotland,

perhaps returning into Northern Ireland,

and some showery bursts of rain sinking south-eastwards across

England and Wales, but struggling to clear that southeast corner.

Bit of a messy day on Monday.

We look further ahead to the early part of next week.

We start with this area of low pressure. It does move away.

There's high pressure in the Atlantic trying to work towards us.

For a while, we'll see a cooler north to north-westerly

airflow before the high pressure starts to build in.

And then, perhaps later on into the week,

the high pressure gets squeezed that bit further south,

allowing low pressures to come in back from the Atlantic

and steer towards the northwest of the UK.

What does that mean?

It means it's going to settle down for a while next week.

And perhaps we'll see a bit more sunshine.

But, as the high get's squeezed to the south,

so those areas of low pressure will bring some stronger winds at times

and perhaps some rain too.

Some uncertainty about

how long the high will last.

Stay tuned.