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An extreme cold warning is issued by Environment Canada to inform the public about cold temperatures in their region that are expected to last for at least two hours. As of April 8, 2014, Environment Canada replaced the Wind Chill Warning with an Extreme Cold Warning. In the older system a wind chill warning for Southern Ontario and Atlantic Canada was issued when the wind chill dropped to -35. Thus a temperature of with no winds would not require a warning be issued. Under the new system the extreme cold warning is issued based on either the temperature or the wind chill being a certain value for at least two hours. The values range from in the south to in parts of the Arctic.〔(Extreme Cold Warning )〕 ==Ranges for issuing an extreme cold warning== *South-Central Ontario and Southwestern Ontario issued at *Southeastern Ontario, the Southern Interior of British Columbia, the British Columbia Coast and Atlantic Canada (excluding Labrador) issued at *Quebec (excluding northern Quebec) issued at *Northern Ontario (excluding the far north), Central Interior of British Columbia and the Prairies (Alberta, southern Manitoba, southern Saskatchewan) issued at *Far northern Ontario, northern Manitoba (excluding northeastern Manitoba), northern Saskatchewan, Northern Interior of British Columbia and Labrador issued at *Northern Quebec (excluding Nunavik) issued at *Yukon, Northwest Territories (excluding Paulatuk, Sachs Harbour, Ulukhaktok), Baffin Island, and northeastern Manitoba issued at *Nunavik issued at *Northwest Territories (Paulatuk, Sachs Harbour, Ulukhaktok only) and Nunavut (excluding Baffin Island) issued at 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Extreme cold warning」の詳細全文を読む スポンサード リンク
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