Twitter's snow map

So how's the snow where you are? And more importantly, how many marks would you give it out of 10? We only ask after a rather ingenious weather map turned to Twitter for help in mapping the wintry conditions hitting many parts of the UK . Marks are awarded not for artistic impression – or how good your snowman looks – but the severity of the snow. One or two for a "few flakes", 5 for "steady snow" and 10 for "Arctic blizzard conditions". Oh, and 11 if it's so cold your iPhone's seized up. Let's hope not.