Â鶹Éç

As colder air sweeps in across the United Kingdom, significant snow could bring some travel disruption.

Cold health alerts and Met Office yellow warnings come into force on Sunday and last into the coming week.

Temperatures will be much lower than the mid-November average by day along with some very cold and frosty nights.

Snow could be particularly disruptive for parts of northern England, North Wales and the Midlands into Tuesday morning.

Wintry showers will move in across Northern Scotland on Sunday with snow accumulating over high ground.

A yellow Met Office severe weather warning will come into force here later on Sunday and last into Monday.

Around 5-10cm of snow could settle on higher ground with 1-3cm even possible at lower levels in northern Scotland.

Temperatures will fall rapidly across Scotland and northern England so a hard a widespread frost is expected on Monday morning.

It'll be the coldest night of the autumn so far with minus 5 to minus 8 Celsius in rural areas.

Cold and frosty nights will continue for most of this week with daytime only 3 to 8C.

With a brisk northerly wind, there'll also be a significant wind chill making it feel freezing.

The UK Health Security Agency (UKHSA) has issued a cold health alert covering the Midlands and North of England for much of the coming week.

It states that weather conditions are likely to have minor impacts on health and social care services, including increased use of healthcare services and a greater risk to life of vulnerable people.

Monday will bring heavy rain which is likely to turn to snow as the weather system responsible moves north-eastwards and hits colder air.

The Met Office have issued a yellow warning valid from Monday evening until Tuesday morning, covering southern Scotland, northern England, north Wales and the north Midlands.

Up to 15-20cm is possible on the high ground of the south Pennines but even at lower levels there could be 2-10cm of settling snow. There'll also be icy stretches.

Travel disruption is possible, particularly on the higher trans-Pennine routes by Tuesday morning.

Forecasting snow at lower levels is always tricky, especially in mid-November with the ground still relatively warm compared to mid-winter.

But, there will be some towns and cities seeing sleet and settling snow in heavier precipitation.

During Tuesday morning, there will be a spell of sleet and snow moving south-eastward through the Midlands into eastern England.

Snow showers will continue to fall in northern Scotland on Monday and Tuesday.

Winter is still a couple of weeks away - meteorologically speaking, it starts on 1 December - so is snow in autumn rare?

While it's not surprising to see snow falling over the hills and mountain tops of Scotland in mid-November, significant snowfall in England and Wales is a little more unusual.

The air generally isn't cold enough across the UK at this time of year.

And even if snow does fall, it may not stick and settle on the ground enough to cause any disruption.

We'd have to go back to 2010 and 1993 to find similar situations when it has been cold enough for disruptive snow.

Even then, it was late November in 2010 where parts of north east England and Scotland had 30-40cm of snow.

That cold snap led onto the coldest December on record in the UK.

The cold spell looks set to last for about a week in some areas.

There will be plenty of bright and sunny conditions with morning frosts but we'll also see wintry showers at times.

Heavier showers around Scotland and northern England, will continue to bring a risk of some snow especially over higher ground.

By the weekend we'll get a switch to milder south-westerly winds with some wet and windy weather spreading in.

Though, as that wetter weather moves northward, there'll be another risk of a short spell of snow before it quickly thaws.

More on the forecast for the rest of November in our latest monthly outlook.