MPCA says the smoke is expected to completely exit the state by 9 a.m. on Tuesday.
Summers in Minnesota are sun, fun and, more and more, smoke.
Smoke originated from BC's 600-plus wildfires burning is making it's way out east, with Alberta and Saskatchewan issusing similar alerts.
The air quality is considered unhealthy for everyone for much of King and Pierce counties, according to the Puget Sound Clean Air Agency.
Forecasters are warning of unhealthy air for parts of the Pacific Northwest as winds push smoke from surrounding wildfires into the region.
With winds pushing smoke from British Columbia and the fires in the Cascades in our direction, we expect poor air quality to continue through Wednesday.
Footage: The Genoa Bridge Collapse
Atlantia shares were up 6% on Thursday's close by 0900 GMT, still down nearly 22% from their level the day before the disaster. At least 38 people died when the bridge crumbled on Tuesday and five are seriously injured in hospital.
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The communique was signed by Chinese State Councilor and Foreign Minister Wang Yi and Salvadorean Foreign Minister Carlos Castaneda.
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The outlet said, citing officials, that at least 12 missiles exploded in the area, adding that locals say there might have been more than 20.
The entire province of Manitoba is under somewhat hazy skies and Environment Canada has issued an air quality alert.
All athletic practices for Tacoma Public Schools have been moved indoors, a district spokesman said. The latest round of prolonged smoke happened as hot temperatures and high pressure collided, said Andrew Wineke, a spokesman for the state Ecology Department's air quality program.
And make sure to check for delays if you're flying into or out of Sea-Tac Airport.
Thick smoke blanketing British Columbia communities far from any flames - including Vancouver where the haze Monday obscured the city's mountain views - could be particularly harmful for children and seniors but anyone with poor health should take precautions, says a senior scientist.
Until then, air quality levels can be expected to oscillate between unhealthy and moderate.
Smoke from wildfires clogged the sky across the U.S. West, blotting out mountains and city skylines from OR to Colorado, delaying flights and forcing authorities to tell even healthy adults in the Seattle area to stay indoors.