Severe Weather Warning Issued

Valid: Friday 18th – Saturday 19th January 2013

Issued For: Heavy Snowfall

Highlights:

  • Cold air embedded over the United Kingdom
  • An active warm front will occlude as it pushes Eastwards turning rain increasingly to snow
  • Significant snowfall accumulations likely to cause problems

Forecast Detail:

During the course of Friday an Atlantic weather front will begin to push Eastwards across the United Kingdom. Due to high pressure over Scandinavia pushing cold air over the UK precipitation will turn to snow across a large part of the United Kingdom. The front will become slow moving as it pushes Eastwards into an area of high pressure and it’ll begin weakening.

Warnings Issued Map
Warnings Issued Map

The heaviest snowfall at the moment is likely to be across Wales, South-Western Scotland and across the Midlands where we could see accumulations of 10-20cm, perhaps locally as much as 25-30cm across higher ground. The snow will turn increasingly to rain and sleet to the extreme West and South-West thawing any lying snow. Northern Ireland could see a short period of snow in the East but I think it’ll largely fall as rain here which could cause some issues with flooding, even so a brief 1-3cm cannot be ruled out.

Snow Depth Map - Totals are likely to vary, take this as a guide. Localised totals could be higher or lower than stated here
Snow Depth Map – Totals are likely to vary, take this as a guide. Localised totals could be higher or lower than stated here

The front will continue edging Eastwards all the while sliding South-East into France while weakening.  As the front pivots and stalls across Central Southern England and South-East England we could see accumulations pushing 10cm quite widely with totals perhaps as high as 20cm across higher ground.

Snow looks likely to linger across South Eastern parts into Saturday again giving further snowfall accumulations before eventually clearing.

As we move into next week it looks like things will remain cold with further snow threats possible.

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