29/11/2015 Weather for the Week Ahead

Hello. Wetter and windier conditions

seem to be dominating over the drier weather.

The reason is all down to big temperature

contrasts across the North Atlantic.

We've seen some very cold air push out to northern Canada recently.

That's hitting very warm tropical air to the south,

and on our latitude that dividing line.

Those temperature contrasts fire up a particularly strong jet stream.

That jet stream fires up some active low-pressure systems.

Another one with us on Sunday,

following into the colder air across Scotland,

significant snow in parts of the southern Highlands

and the Grampians and at even lower levels later on.

But elsewhere, cloudy outbreaks of rain and some very strong winds.

Through the afternoon, we could see 60, maybe

70mph gusts across parts of northern England and across Wales as well.

But wherever you are, it will be a windy day on Sunday,

and the winds pick up across the south into the afternoon.

We've seen sunshine, showers through the morning,

cloudy into the afternoon, but notice the black wind arrows.

These are where gusts of wind are over 40mph, some close to 50,

even 60mph even at this stage.

Wettest weather by the afternoon in parts of Wales and the Midlands.

It brightens up but turns cold across northern England,

sunshine and showers, as in Northern Ireland, with showers turning wintry

mainly over the hills but even to lower levels,

as will be the case across Scotland, after snow in the morning,

more sleet and snow showers through the afternoon

and temperatures only around three or four Celsius at best for many.

And with the snow showers continuing here through Sunday night

and into Monday, a significant ice risk possible.

Further south we'll see temperatures drop initially but then

lift as we see another weather system pushing its way in, which

will be running into cold air, and over the hills we could see snow,

so maybe the tops of the Welsh mountains, the higher

ground of Northern Ireland and into parts of northern England,

too, especially on the Pennines.

But here it is, the next system,

running in on that temperature contrast I mentioned,

a strong jet stream.

This feature doesn't look like it'll get too far north.

The northern edge of course always prone to some hill snow,

but outbreaks of rain quite widely across England and Wales.

And again, the saturated nature of the ground, rivers running high,

we'll have to watch out for the risk of some flooding.

Temperatures, like Sunday, nine to 13 degrees, southern half of the UK.

Contrast that with the colder side of the jet stream,

with sunshine and wintry showers only around two to five degrees.

Now, a risk of frost

and ice again across the north into Tuesday morning,

a brief ridge of high pressure before our system pushes its way

northwards once again.

Rain initially across parts of England and Wales,

pushing into Scotland and Northern Ireland

but taking milder air with it, still

though with the significant risk of snow over the Scottish mountains.

So we're all into the milder air as we finish Tuesday

and go into Wednesday.

Windy conditions across the board, and our weather front wriggles

back into the next system set to push its way in.

There just doesn't seem to be any let-up,

and that's that active jet stream I mentioned.

Very mild for the time of year, 11 to 14 Celsius across the board,

the most persistent rain in Scotland and Northern Ireland.

A band of rain sweeps across England and Wales into Thursday

and another area of low pressure potentially towards the west.

That one we'll have to watch. A lot of uncertainty about this,

but it could bring some pretty strong winds.

And as it all pushes through, we're back into slightly colder

air once again with the risk of some overnight frost.

But as we end the week, the overnight frost is then replaced by

strengthening south-westerly winds

as our jet stream whips up a deepening area of low pressure

way out towards the North Atlantic.

Now, Friday probably a little bit drier towards the south

and the east, but some windy conditions across the board.

Rain spreads, and into the start of next weekend,

a chilly start, further spells of rain around, low-pressure

systems still coming our way, still pretty windy at times, too.

We may have to wait till the middle

of December before things turn quieter.

Roger. Roger!

You've met Matva, I've just hired her.

I want you all to be vigilant, we need you to be vigilant.

The African lady, she had nothing to do with it, then? Erm, no.