Overview
- Arctic air has ended the recent mild spell, bringing widespread frosts and early snow in higher terrain with temporary whitening possible even in lowlands.
- A broad precipitation band is forecast to arrive from the west Saturday night into Sunday, producing snow or sleet from the North Sea to the Black Forest with slippery roads and reduced visibility.
- Model runs highlight the night of 22–23 November for significant snowfall, while timing, coverage and local amounts remain uncertain.
- Nighttime temperatures are expected to fall widely to −2 to −8 C, dropping below −10 C in higher areas and potentially to −15 C over continuous snow cover.
- Successive low-pressure systems could generate strong winds and drifting in uplands, and several waves of snowfall are possible through about 27 November according to GFS.