A sprawling area of high pressure helped to clear our atmosphere out a bit over the weekend, but some of the wildfire smoke from out west will return to our skies this week.

A large area of low pressure will be carrying the vast majority of the current smoke through Canada and out into the Atlantic Ocean the next few days–but the trailing front will stall to our north. Frontal boundaries are literally wind shifts–so the smoke tends to collect along those same frontal boundaries.

The result with a front stalling to our north? The smoke that’s aloft in the atmosphere will stall too bringing that milky, hazy look to the sky back to the Region.

Here’s the wildfire smoke forecast for the week: