The UK snow bombs have been increased to THREE – with swathes of England set to be buried under the white stuff. Weather maps and charts, from WX Charts, which uses Met Desk data, shows three weather bombs on December 21.
Ahead of Christmas, snowfall looks set to hammer Greater Manchester and Lancashire. Separately, two other snow bombs are seen – on the GFS advanced modelling system – in other parts of the north of England.
Other areas at risk include the Lake District and Pennines, to the west of Newcastle. There could be four further patches of the white stuff north of the border, in Scotland.
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There is very low confidence surrounding the second half of December, and not just because it’s a long way ahead, the BBC Weather team has said.
It’s also due to ongoing disturbances in the upper atmosphere and the uncertainty around their expected impacts as they trickle down to the troposphere, the layer in which our weather occurs, the Beeb adds.
In an update for late December, the BBC said: “Patterns could shift, and indeed there is a tentative expectation that high pressure could become more prevalent for a while across or near the UK and Ireland.
“This should lead to more infrequent precipitation, so conditions could be drier than normal for a while before Christmas. High pressure alignment will dictate what happens to temperatures.”
The BBC continues: “Current indications are for them to be near or slightly above normal, but with some clearer and calmer nights there could be more frost and fog.
“There is a risk that high pressure could build more strongly at higher latitudes, which would bring a possibility of colder outbreaks later. On the other hand, if high pressure were to slip away the wetter conditions could return, so there is a lot yet to resolve.”
It will update another update on Tuesday. It comes as an Atlantic weather system will bring 100-120mm of rain to Welsh high ground on Monday, with the Met Office issuing an Amber warning, amid concerns over already-saturated ground and potential danger to life from fast-flowing floodwater.