GREENSTONE — National weather and public health officials are urging people across much of the Northwest to keep cool Friday.

Heat warnings were put into effect early Friday morning. They range from Atikokan in the west, east through Thunder Bay and extend well into northeastern Ontario. Communities right along the North Shore were spared, but the alerts include the Lake Nipigon area, Armstrong, the rest of Greenstone, Manitouwadge and Hornepayne.

Temperatures are expected to be around 29 C, with the humidity making it feel more like 36.

Crawford Luke, a meteorologist with Environment Canada, said a southerly flow of hot, humid air is coming up from the United States in between a low pressure system over Manitoba and a high pressure system over parts of Ontario, Quebec and the northea

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