AccuWeather.com reports heat more befitting the middle latitudes will thrust far to the north over western Canada this week. A sweeping bend in the jet stream will allow heat from the western United States to flow northward over British Columbia to the Yukon and Northwest Territories, even crossing the Arctic Circle.
The most extreme warmth yielding highs of 85, 90 and even 95 degrees, will happen daily through at least Sunday along the lower Mackenzie River of Northwest Territories. Temperatures this high would be up to 30 degrees above normal.
The exceptional heat could continue through the first half of next week as a significant northward veering of the jet stream is likely to persist.
The greatest potential impact of the dry heat for sparsely settled western and northwestern Canada will be the heightened threat of wildfires. This would be further aggravated in the event of any dry thunderstorms, which will be possible during the week.
Story by AccuWeather.com Senior Meteorologist Jim Andrews
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