A snowstorm is a weather event characterized by heavy snowfall and strong winds. It occurs when cold air meets moisture in the atmosphere, leading to the formation of snowflakes. Snowstorms can vary in intensity, with some producing just a light dusting while others can lead to several feet of snow accumulation. During a snowstorm, visibility can be significantly reduced, making travel dangerous. Roads may become covered in snow, leading to hazardous driving conditions. Snowstorms are often measured by their snowfall rates and can impact daily life, including school closures and disruptions in public transportation, such as buses and trains.