Cold air invasion

River Ölfusá, by Selfoss

It has been getting colder in the last few days. The frost was around -7° C today and the forecast predicts up to -10°C tonight in the South and even colder in the North and the East.  Cold air is on its way from Northeast Greenland and forecasts predict that the cold will reach West Europe tomorrow. A little ice has started to form on the river.