@CNN: Snow storms are often referred to as blizzards, but that’s not accurate. CNN’s Derek Van Dam explains which weather conditions must occur before a snow storm can be called a blizzard. https://t.co/DgIoucMzjh https://t.co/zrPsY9S0Hl

@CNN: Snow storms are often referred to as blizzards, but that’s not accurate. CNN’s Derek Van Dam explains which weather conditions must occur before a snow storm can be called a blizzard. https://t.co/DgIoucMzjh https://t.co/zrPsY9S0Hl