Heavy frost expected in Poland

People are seen throwing snowballs near the Palace on the Isle in the Royal Baths park in Warsaw, Poland on January 13, 2021. Though temperatures normally reach below zero in January in Poland the winter has so far been exceptionally warm. At the end of the week temperatures are excpected to reach almost 20 below zero the Polish Metererological Institute has announced. Strong winds are alos expected which may cause damage to infratstruture.