According to the KNMI, there may also be a few (winter) showers in the north, possibly with some sleet. According to the weather institute, there is a risk of accidents due to slippery bridges, roads, cycle paths and sidewalks. After about ten hours the smoothness disappears again.
According to the KNMI, the slippery surface can be difficult to see due to freezing. Traffic must take delays into account on the road, travelers may encounter them on public transport. Air traffic may also be delayed. Rijkswaterstaat advises to check the situation on the road before departure.