Various type ofwinter storms occur over Canada and produce major impacts on society. Canada is subjected to extra-tropical cyclones with ail their embedded structures, as well as blizzards, mountain-induced storms, lake effect storms and polar lows. Many of thèse storms are accompanied by heavy précipitation in thé form of snow or freezing précipitation, bitterly cold conditions, strong winds, and blowing snow. The occurrence and nature of thèse storms are discussed in this review article. RÉSUMÉ On examine la présence et la nature des nombreux types de tempêtes d'hiver qui touchent le Canada et y occasionnent des impacts importants sur la société. Le pays est éprouvé par les cyclones extra-tropicaux et tous leurs éléments, ainsi que par les blizzards, les tempêtes de montagnes, les effets de lac et les dépressions polaires. Des précipitations abondantes, sous forme de neige ou de verglas, des froids cinglants, des vents forts et de la poudrerie élevée sont souvent associées à ces tempêtes.
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