Today’s snowfall has caused problems with power supplies for the London Tube:

The Metropolitan line is not running.

The Central, Piccadilly lines are part-suspended with severe delays and there are severe delays on the Northern line.

If your journey uses the Overground be aware that there are minor delays between Euston and Watford Junction due to the same power supply problems.

Service is suspended on various bus routes in north London, including routes W7, 34, 134, 234, 263 and 307 - and some other services are stopping early or being diverted.

You may be posting your beautiful snap of your snowman on social media, but some parts of the UK are not experiencing snowy conditions yet today.

There's an amber weather warning across large parts of the UK - that means "be prepared" and that you may have to change some plans.

Weather warnings explained

See more weather info here - and check out the UK cold spots (Newtown, Powys is at -13C!) and "hot spots" (that would be St Helier, Jersey, at 11C).

Many people are celebrating in parts of the country that haven't seen more than a smattering of snow for several years. Elizabeth Marshall sent this picture-perfect photograph from Huntingdon, Cambridgeshire where she says it's the first snow in almost five years.

Image source, Elizabeth Marshall

For those not having to be anywhere this Sunday the snow is a chance to have some fun.

Families begin to arrive to play in the snow at Wollaton Park in Nottingham.

Just like at East Midlands Airport, staff at Birmingham Airport have to clear the runway of snow before any flights can get out or in.

Keep up to date at birminghamairport.co.uk/important-information.

Rekha and Robin Damhar from London sent their photo of waking to heavy snowfall after going to a winter wedding last night in Coleford, in the Forest of Dean.

Image source, Rekha Damhar

It's the first snow of this winter to settle in London. A couple of days of freezing and sub-zero temperatures have prepared the ground in the capital.

These Sunday morning walkers got the first of it in Wanstead, north-east London.

Image source, Reuters

Image source, Reuters

Prime Minister Theresa May and her husband walked through a thin blanket of snow and a smattering of flakes after leaving church in Kent.

Image source, PA

Here's the latest for disruption at London airports:

Luton is open, but flights in and out are "subject to delays and cancellations".

Some flights at Heathrow are delayed and the airport says that it's best to check with the airline in advance.

Stansted advises passengers to allow extra time when travelling to the airport due to the weather conditions - and to double check their flight status with their airline.

Gatwick is operating as normal and London City is not reporting any delays.

National Rail advises...

In London parts of the Central Line are currently closed due to problems with power supplies.

You can rate the snow where you live on a crowdsourced ‘snow map’. It uses tweets of postcodes and a rating of 0-10, or no snow to blizzard, to create an (unscientific) map of snowfall across the UK.

Passengers heading to Luton Airport are advised to check with their airline before travelling and allow extra time to get to their terminal.

It said departures and arrivals are being affected by delays and cancellations.