Exactly where and when heavy snow is forecast in London this week

The BBC is forecasting heavy snow in parts of London for the end of the year as temperatures continue to plummet.

The weather experts are predicting the majority of the snow that will fall in the capital will be in the greater London boroughs, with most of inner London remaining untouched – for now.

A yellow weather warning for snow and ice has been issued by the Met Office for Wednesday, December 30 and New Year’s Eve (Thursday, December 31).

The Met Office has warned there is a chance travel could be disrupted and even a slight chance of power cuts.

Here are the London boroughs that are forecast to have snow and when it will fall before the end of 2020.

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Croydon

South London’s most populous borough may see snow as early as 7pm today (Wednesday, December 30) according to the BBC. Heavy snow is also predicted to fall in the borough from 6am on New Year’s Eve.

Heavy snow predicted in Croydon (Credit: BBC)

Hillingdon

For those in Hillingdon wanting to see some snow, they will have stay up late tonight as a light snow shower is predicted to begin at 1am on New Year’s Eve but will only last for a couple of hours.

Havering

Havering is forecast to join Croydon for an early morning heavy snow blitz at 6am on New Year’s Eve.

Hounslow

Hounslow may have a white end to 2020 after missing out on a white Christmas with an erratic prediction of snow and sleet in the coming days. Heavy snow is predicted at 1am on New Year’s Eve.

Harrow

Harrow will follow a very similar pattern to Hounslow with a light shower of snow starting at 1am on New Year’s Eve.

Ealing

Ealing has also been predicted heavy snow for an hour from 1am on New Year’s Eve.

Enfield

The most northern borough has been predicted to have snow overnight from 1am on New Year’s Eve so anyone living there may wake up to a blanket of snow outside.

Redbridge

And Redbridge residents can expect the same as the borough is too forecast to get snow from 1am on New Year’s Eve.

Why is it so difficult to forecast when it will snow?

It’s most likely because weather experts say snow is the hardest kind of weather to predict.

This is largely due to forecasters being unsure as to whether a given area will see snow or just rain.

Speaking previously local weather expert Ian Currie said: “We’re talking about very dynamic, complex systems. A weather front could be thousands and thousands of miles away, but if it arrives just a little bit off the predicted path, the weather can be totally different.”

He added: “Snow is very hard to predict because in this country we’re so close to that critical point where the temperature drops enough for precipitation to fall as snow.

“In Sweden, you could safely predict that a weather front would bring snow, but here just a change of a couple of degrees could make the difference.”

Although precipitation often falls from the sky as snow, it has mostly melted by the time it hits our streets.

Temperatures at ground level are far warmer than even 25 metres up in the air and the rain we see may well have been snow seconds before it hits the ground.

Mr Currie said: “Snow is very dependant on the height of where you are.

“For every 50 feet, 15 metres or so, you get higher up there is an increased likelihood of an extra day of snow. So if you take parts of South Croydon for example, Sanderstead and Selsdon, you are likely to get 10 more days of snow a year there than parts in the north of Croydon.

“It can change that much in a small distance.

“Again out by Biggn Hill there is much more chance of getting snow than Streatham or Tooting for example.”

Are you planning to spend time in the snow? Let us know by sending an email to james.twomey@reachplc.com

My London – Bromley