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Europe forecast - December 11, 2017
Stormy northern Europe
Heavy snow Alps

Issued: 0530hrs Monday 11th December 2017
Duty forecaster: Garry Nicholson


Snow spreads to Sweden and Finland by Tuesday


Monday
A powerful storm system moves across France and the Low Countries, bringing gales or severe gales to Biscay coasts, plus high seas. Strong winds sweep through the Alps and Italy, also the Balkans. Rain and snow affects northern France and Belgium. A cold front extends across southern France and Italy, and the western Mediterranean into Spain bringing heavy rain, or snow over the mountains. Heavy showers follow across north-western Iberia.
Rain and snow moves into Germany. A warm front extends across eastern Europe, bringing a lot of cloud and outbreaks of rain or drizzle to Poland, Slovakia and Hungary. Some snow for southern Sweden and Norway, plus the northern Baltic, although a good deal of dry weather across Scandinavia. High pressure toward the south-east of Europe brings dry and fairly warm weather to Greece and areas near the Black Sea. Highs of 20C in Cyprus.


Tuesday
Heavy snow for the Alps into Monday evening and night as low pressure sits across the region, which will fade only slowly into the daytime. Showery rain for central Italy. A few showers around Biscay, otherwise much of France and Spain will be dry. Cool for northern Iberia, but warmer further south, highs 16C for southern Portugal.
Monday's storm system moves north-eastwards into the Baltic, bringing strong to gale force winds to northern Germany, Denmark and Poland. Rain followed by showers advances across north-central Europe into Scandinavia, turning into heavy snow for southern Sweden. This moves north into Finland through the day. Very cold but dry for much of Norway, staying widely below freezing by day, and bitterly cold overnight, into the minus teens Celsius. Blustery but mainly dry for eastern Europe. Staying fairly mild in the south-east, with plenty of sunshine for Greece, up to 17C.


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