Weatherwatch: How frost flowers turn icy landscapes into beautiful gardens

Intricate ice formations can grow on frozen lakes and seas when relatively warm ice is exposed to still airIntricate fern-like "frost flowers", said to be painted on windows and windscreens by Jack Frost, are a familiar feature of British winter. In Arctic regions there is an even prettier three-dimensional version.These frost flowers are typically 3-4cm across and whole gardens of them grow on frozen lakes and seas. Like the window version, they are the result of ice crystals growing in a slow, orderly fashion. Continue reading...