Tomorrow a very dangerous "wintery" situation is to be expected in W Germany. This forecast is meant to give a brief overview of the situation expected tomorrow.

MILK has issued warning for Germany. See the map below. Especially in the W and SW the snowfall is expected to be extreme.
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Over the day, the low pressure area will move into Germany, causing most intense snow in the morning, however at that time still having mainly rain in it's precipitation bands. During the day, the intensity of the snow will decrease, however the rain the rain will turn mainly into snow. Here the comparison in the forecast maps:
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00UTC map. GFS.

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21UTC map. GFS.

The maps above show the type and intensity of the precipitation forecast on a map of central Europe.

The cause for this wild weather is the low pressure area "Hiltrud", which is currently still located of the British islands.
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However, the core of the low will move right over Germany tomorrow.
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21UTC forecast map. GFS

The total amounts of snow that will fall are quite significant, as can be seen in this map:
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Snowfall within 36 hours from 12UTC today

The German weather service and MeteoGroup have both also already issued warnings regarding the winter storm. See below:
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MeteoGroup

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DWD