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First proper snow of the winter

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Derek Brockway Derek Brockway | 13:14 UK time, Thursday, 15 December 2011

Some parts of Wales have already had a dusting of snow but it looks like we could be in for the first proper snow of the winter later tonight and tomorrow morning!

Mind you, it's not going to snow everywhere, it will depend very much on where you live and how high you are above sea level. Some places will just have rain.

Based on the latest information from the Met Office, the higher ground of South and Mid Wales could be worst hit by snow but of course things could change with further updates later today.

There is still some uncertainty on the path of a deepening area of low pressure moving in from the Atlantic.

A change in direction of just 50 to 100 miles north or south can make all the difference as to which part of Britain will get heavy rain, snow or severe gales.

This evening rain in Pembrokeshire will spread across the rest of Wales and it will turn increasingly to sleet and snow after midnight. On the coast it will probably stay as rain or sleet but snow inland.

The Met Office has issued a yellow and amber snow warning for parts of Wales. Amber means be prepared for some disruption.

Forecast chart for 6am on Friday, 16 December, 2011.

Forecast chart for 6am on Friday, 16 December, 2011.

Parts of Mid Wales, the South Wales Valleys and Monmouthshire could have 2 to 5 cm of snow, 1 to 2 inches.

However over 10cm (4 inches) is possible on higher ground e.g. the Heads of the Valleys, the Black Mountains, Brecon Beacons and the hills of Powys.

The snow will be the wet, sticky kind and consist of big flakes. It will settle, especially but not exclusively on higher ground.

Cardiff and Swansea may get away with little if any snow but I wouldn't rule out a light covering on some cars and the grass.

Tomorrow the rain and snow will move away but in the north showers will move in from the Irish Sea, some of these heavy falling as rain, hail, sleet and snow with thunder possible too.

Pen y Fan with a dusting of snow by Mike Davies.

Pen y Fan with a dusting of snow by Mike Davies.

Tomorrow night, the showers will clear and with temperatures falling close to freezing or below ice will become a hazard.

This is not the start of a severe cold spell though and it looks like turning milder in the run up to Christmas next week, so a White Christmas looks unlikely at the moment.

So, a wintry mix of weather heading our way in the next 24 hours. Don't forget you can keep up to date with the forecast and the latest traffic and travel news on BBC Radio Wales and BBC Radio Cymru.

If you take any pictures of snow why not send them in to the weather team via email to dereksdiary@bbc.co.uk or send me a tweet @derektheweather.

Derek

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