Today I was introduced to the concept of the 30-30-30 rule. If the temperature drops to -30°F or under, and the wind is blowing at 30 mph, then any exposed skin will begin to freeze in 30 seconds. It was bloody cold today.
Well, it wasn’t quite cold enough for the rule to come into effect, but it was raining, and then snowing, all with a very strong wind, which managed to freeze lots of car doors shut, and create swathes of black ice on the roads and pavements, and nearly blow people over who were silly enough to be standing around outside.