UK weather maps reveal exact date 22C 'mini heatwave' to blast millions of Brits / UK weather maps turn purple as snow falls as far south as Wales and Manchester / UK weather maps turn purple as England and Scotland battered by 12 hours of snow / UK weather maps reveal Britain's hottest towns as 'spring equinox' brings glorious sun / UK weather maps show exact date England covered by huge snow and rain bomb / UK weather maps show exact part of Britain set to get mini-heatwave with 16C temps / UK weather maps show snow as far south as London in six hours of blizzards / UK weather maps show exactly when spring will start - and Brits will be happy / UK weather maps turn purple with blizzards as far south as Birmingham and Cardiff / UK weather maps turn purple and orange as 696-mile snow and rain storm hammers Britain