Guardian: The freakish snowy conditions are the result of two clashing weather systems, meteorologists explained. Biting winds from the east, originally from Arctic regions, have collided with a damp patch of air moving north from France. The result? Massive snowfall. The warmer south-east of England, and especially London, often escapes the worst of winter weather, but this time the region took a direct hit because the two weather systems clashed immediately above. Take away one of the …