The synoptic situation above shows the remarkable contrast building up around Europe this week. While much of the UK still sits in a mild SW flow brought in by a powerful SW jetstream, a HIGH pressure building over Scandinavia is set to drag in Siberian easterly winds to Eastern and SE Europe which is due to get much colder.
Whilst the jetstream is forecast to sink a little south of the UK by early January, which is the colder side, it is not certain whether any proper cold will reach the UK just yet. The UK looks increasingly sandwiched between bitterly cold easterly air and cool Atlantic NW air. A stormy and wet set-up is likely with temperature contrasts like these, but will it snow?
The ECMWF is certainly keen on something cold as pressure falls across the UK and Europe and allows the chance of LOWS ingesting nearby cold continental air. This…
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