Overview
- Official alerts cover frost, icy roads and gusty winds, with stiffer gusts around 60–70 km/h in exposed uplands and some wind‑prone areas.
- Nighttime temperatures commonly fall to between −1 and −9 degrees Celsius, with local minima near −12 degrees in the east and around −12 degrees on the Brocken.
- Most regions missed a white Christmas, as snowfall has been largely confined to higher elevations, but a white New Year is now on the table.
- Several model runs, led by the US GFS, depict roughly 5–20 cm at low elevations and 20–60 cm in uplands and near the Alps, while other guidance is more restrained.
- Forecasters note increasing low clouds and patchy drizzle before the change, including glaze risk in the Mittelgebirge, and urge close monitoring through the holiday weekend.