Smoke Blankets Northeast and Midwest U.S. As Wildfires Rage Across Ontario

Dense wildfire smoke continues to impair visibility on urban roads in the Northeast and Midwest.

Dense wildfire smoke continues to reduce visibility across urban areas in the Northeast and Midwest.

Visibility remains significantly reduced in Northeast and Midwest cities due to dense wildfire smoke haze.

Smoke obscures visibility over highways and urban areas in the Northeast and Midwest.

Multiple Citizen users from across the Midwest are showing hazy conditions, including some skylines completely enshrouded.

New York State issued a statewide air quality advisory, and New York City is handing out free KN95 masks at more than 200 libraries, all NYPD precincts, firehouses, and select transit hubs including Penn Station and Grand Central.

Minnesota's statewide alert runs through Saturday.

Michigan is under a statewide air quality alert, with cooling centers open at city recreation centers and public libraries for residents without air conditioning. A state monitor near Marquette in the Upper Peninsula registered an index of 955 Wednesday evening.

In Chicago, air quality crossed into the hazardous "maroon" category with a reading above 300, the worst the city has recorded since regulatory monitoring began nearly 30 years ago. All beaches and outdoor pools are closed, Park District programs have moved indoors, and the Garfield Park and Lincoln Park conservatories are shut for the day.

As of Thursday afternoon, Detroit had the worst air quality of any major city in the world, with an index near 570 — deep into the hazardous range — followed by Minneapolis, Chicago, and Toronto.

Users in the New York and Chicago areas are showing hazy conditions as smoke moves over the midwest and northeast U.S.

The Chiefs of Ontario are calling on federal and provincial governments to immediately provide coordinated emergency support as escalating wildfires threaten multiple First Nations communities.

Toronto's air quality was ranked among the worst in the world Wednesday as wildfire smoke triggered an orange air quality warning across the city. Environment Canada warns of "very poor air quality" and reduced visibility across Ontario through Friday.

Highways 599 and 527 remain fully closed.

Evacuation orders remain in effect for Armstrong, Collins First Nation, Gakijiwanong Anishinaabe Nation, Gull Bay First Nation, Lac des Mille Lacs First Nation, and Whitesand First Nation.

Nearly 200 wildfires are now burning across Ontario as of July 15 — significantly more than the 100+ reported earlier this week.

A user is live showing conditions in Ontario, reportedly a considerable distance away from the fires.

Residents are advised to limit time outdoors, keep windows and doors closed, and set HVAC systems to recirculate. Wear a KN95 or N95 mask if going outside. Those with asthma, heart disease, or other respiratory conditions are at highest risk.

Wildfire smoke is forecast to spread across the Midwest, Northeast, and Mid-Atlantic through Friday, potentially affecting air quality for around 100 million people, per the Washington Post.

Environment Canada has issued widespread air quality warnings across southern Ontario.

Evacuation orders are in place for Armstrong, Whitesand First Nation, and Collins First Nation, with residents seeking shelter in Thunder Bay, per CBC.

Several fires have merged into larger complexes and some have crossed the Ontario-Minnesota border.

More than 100 active wildfires are burning across Ontario as of July 15th, with numerous fires out of control due to extreme heat, dry conditions, and strong winds.

Incident reported at Ontario, Canada.

Dense wildfire smoke continues to impair visibility on urban roads in the Northeast and Midwest.

Dense wildfire smoke continues to reduce visibility across urban areas in the Northeast and Midwest.

Visibility remains significantly reduced in Northeast and Midwest cities due to dense wildfire smoke haze.

Smoke obscures visibility over highways and urban areas in the Northeast and Midwest.

Multiple Citizen users from across the Midwest are showing hazy conditions, including some skylines completely enshrouded.

New York State issued a statewide air quality advisory, and New York City is handing out free KN95 masks at more than 200 libraries, all NYPD precincts, firehouses, and select transit hubs including Penn Station and Grand Central.

Minnesota's statewide alert runs through Saturday.

Michigan is under a statewide air quality alert, with cooling centers open at city recreation centers and public libraries for residents without air conditioning. A state monitor near Marquette in the Upper Peninsula registered an index of 955 Wednesday evening.

In Chicago, air quality crossed into the hazardous "maroon" category with a reading above 300, the worst the city has recorded since regulatory monitoring began nearly 30 years ago. All beaches and outdoor pools are closed, Park District programs have moved indoors, and the Garfield Park and Lincoln Park conservatories are shut for the day.

As of Thursday afternoon, Detroit had the worst air quality of any major city in the world, with an index near 570 — deep into the hazardous range — followed by Minneapolis, Chicago, and Toronto.

Users in the New York and Chicago areas are showing hazy conditions as smoke moves over the midwest and northeast U.S.

The Chiefs of Ontario are calling on federal and provincial governments to immediately provide coordinated emergency support as escalating wildfires threaten multiple First Nations communities.

Toronto's air quality was ranked among the worst in the world Wednesday as wildfire smoke triggered an orange air quality warning across the city. Environment Canada warns of "very poor air quality" and reduced visibility across Ontario through Friday.

Highways 599 and 527 remain fully closed.

Evacuation orders remain in effect for Armstrong, Collins First Nation, Gakijiwanong Anishinaabe Nation, Gull Bay First Nation, Lac des Mille Lacs First Nation, and Whitesand First Nation.

Nearly 200 wildfires are now burning across Ontario as of July 15 — significantly more than the 100+ reported earlier this week.

A user is live showing conditions in Ontario, reportedly a considerable distance away from the fires.

Residents are advised to limit time outdoors, keep windows and doors closed, and set HVAC systems to recirculate. Wear a KN95 or N95 mask if going outside. Those with asthma, heart disease, or other respiratory conditions are at highest risk.

Wildfire smoke is forecast to spread across the Midwest, Northeast, and Mid-Atlantic through Friday, potentially affecting air quality for around 100 million people, per the Washington Post.

Environment Canada has issued widespread air quality warnings across southern Ontario.

Evacuation orders are in place for Armstrong, Whitesand First Nation, and Collins First Nation, with residents seeking shelter in Thunder Bay, per CBC.

Several fires have merged into larger complexes and some have crossed the Ontario-Minnesota border.

More than 100 active wildfires are burning across Ontario as of July 15th, with numerous fires out of control due to extreme heat, dry conditions, and strong winds.

Incident reported at Ontario, Canada.

Dense wildfire smoke continues to impair visibility on urban roads in the Northeast and Midwest.

Dense wildfire smoke continues to reduce visibility across urban areas in the Northeast and Midwest.

Visibility remains significantly reduced in Northeast and Midwest cities due to dense wildfire smoke haze.

Smoke obscures visibility over highways and urban areas in the Northeast and Midwest.

Multiple Citizen users from across the Midwest are showing hazy conditions, including some skylines completely enshrouded.

New York State issued a statewide air quality advisory, and New York City is handing out free KN95 masks at more than 200 libraries, all NYPD precincts, firehouses, and select transit hubs including Penn Station and Grand Central.

Minnesota's statewide alert runs through Saturday.

Michigan is under a statewide air quality alert, with cooling centers open at city recreation centers and public libraries for residents without air conditioning. A state monitor near Marquette in the Upper Peninsula registered an index of 955 Wednesday evening.

In Chicago, air quality crossed into the hazardous "maroon" category with a reading above 300, the worst the city has recorded since regulatory monitoring began nearly 30 years ago. All beaches and outdoor pools are closed, Park District programs have moved indoors, and the Garfield Park and Lincoln Park conservatories are shut for the day.

As of Thursday afternoon, Detroit had the worst air quality of any major city in the world, with an index near 570 — deep into the hazardous range — followed by Minneapolis, Chicago, and Toronto.

Users in the New York and Chicago areas are showing hazy conditions as smoke moves over the midwest and northeast U.S.

The Chiefs of Ontario are calling on federal and provincial governments to immediately provide coordinated emergency support as escalating wildfires threaten multiple First Nations communities.

Toronto's air quality was ranked among the worst in the world Wednesday as wildfire smoke triggered an orange air quality warning across the city. Environment Canada warns of "very poor air quality" and reduced visibility across Ontario through Friday.

Highways 599 and 527 remain fully closed.

Evacuation orders remain in effect for Armstrong, Collins First Nation, Gakijiwanong Anishinaabe Nation, Gull Bay First Nation, Lac des Mille Lacs First Nation, and Whitesand First Nation.

Nearly 200 wildfires are now burning across Ontario as of July 15 — significantly more than the 100+ reported earlier this week.

A user is live showing conditions in Ontario, reportedly a considerable distance away from the fires.

Residents are advised to limit time outdoors, keep windows and doors closed, and set HVAC systems to recirculate. Wear a KN95 or N95 mask if going outside. Those with asthma, heart disease, or other respiratory conditions are at highest risk.

Wildfire smoke is forecast to spread across the Midwest, Northeast, and Mid-Atlantic through Friday, potentially affecting air quality for around 100 million people, per the Washington Post.

Environment Canada has issued widespread air quality warnings across southern Ontario.

Evacuation orders are in place for Armstrong, Whitesand First Nation, and Collins First Nation, with residents seeking shelter in Thunder Bay, per CBC.

Several fires have merged into larger complexes and some have crossed the Ontario-Minnesota border.

More than 100 active wildfires are burning across Ontario as of July 15th, with numerous fires out of control due to extreme heat, dry conditions, and strong winds.

Incident reported at Ontario, Canada.

Dense wildfire smoke continues to impair visibility on urban roads in the Northeast and Midwest.

Dense wildfire smoke continues to reduce visibility across urban areas in the Northeast and Midwest.

Visibility remains significantly reduced in Northeast and Midwest cities due to dense wildfire smoke haze.

Smoke obscures visibility over highways and urban areas in the Northeast and Midwest.

Multiple Citizen users from across the Midwest are showing hazy conditions, including some skylines completely enshrouded.

New York State issued a statewide air quality advisory, and New York City is handing out free KN95 masks at more than 200 libraries, all NYPD precincts, firehouses, and select transit hubs including Penn Station and Grand Central.

Minnesota's statewide alert runs through Saturday.

Michigan is under a statewide air quality alert, with cooling centers open at city recreation centers and public libraries for residents without air conditioning. A state monitor near Marquette in the Upper Peninsula registered an index of 955 Wednesday evening.

In Chicago, air quality crossed into the hazardous "maroon" category with a reading above 300, the worst the city has recorded since regulatory monitoring began nearly 30 years ago. All beaches and outdoor pools are closed, Park District programs have moved indoors, and the Garfield Park and Lincoln Park conservatories are shut for the day.

As of Thursday afternoon, Detroit had the worst air quality of any major city in the world, with an index near 570 — deep into the hazardous range — followed by Minneapolis, Chicago, and Toronto.

Users in the New York and Chicago areas are showing hazy conditions as smoke moves over the midwest and northeast U.S.

The Chiefs of Ontario are calling on federal and provincial governments to immediately provide coordinated emergency support as escalating wildfires threaten multiple First Nations communities.

Toronto's air quality was ranked among the worst in the world Wednesday as wildfire smoke triggered an orange air quality warning across the city. Environment Canada warns of "very poor air quality" and reduced visibility across Ontario through Friday.

Highways 599 and 527 remain fully closed.

Evacuation orders remain in effect for Armstrong, Collins First Nation, Gakijiwanong Anishinaabe Nation, Gull Bay First Nation, Lac des Mille Lacs First Nation, and Whitesand First Nation.

Nearly 200 wildfires are now burning across Ontario as of July 15 — significantly more than the 100+ reported earlier this week.

A user is live showing conditions in Ontario, reportedly a considerable distance away from the fires.

Residents are advised to limit time outdoors, keep windows and doors closed, and set HVAC systems to recirculate. Wear a KN95 or N95 mask if going outside. Those with asthma, heart disease, or other respiratory conditions are at highest risk.

Wildfire smoke is forecast to spread across the Midwest, Northeast, and Mid-Atlantic through Friday, potentially affecting air quality for around 100 million people, per the Washington Post.

Environment Canada has issued widespread air quality warnings across southern Ontario.

Evacuation orders are in place for Armstrong, Whitesand First Nation, and Collins First Nation, with residents seeking shelter in Thunder Bay, per CBC.

Several fires have merged into larger complexes and some have crossed the Ontario-Minnesota border.

More than 100 active wildfires are burning across Ontario as of July 15th, with numerous fires out of control due to extreme heat, dry conditions, and strong winds.

Incident reported at Ontario, Canada.

Dense wildfire smoke continues to impair visibility on urban roads in the Northeast and Midwest.

Dense wildfire smoke continues to reduce visibility across urban areas in the Northeast and Midwest.

Visibility remains significantly reduced in Northeast and Midwest cities due to dense wildfire smoke haze.

Smoke obscures visibility over highways and urban areas in the Northeast and Midwest.

Multiple Citizen users from across the Midwest are showing hazy conditions, including some skylines completely enshrouded.

New York State issued a statewide air quality advisory, and New York City is handing out free KN95 masks at more than 200 libraries, all NYPD precincts, firehouses, and select transit hubs including Penn Station and Grand Central.

Minnesota's statewide alert runs through Saturday.

Michigan is under a statewide air quality alert, with cooling centers open at city recreation centers and public libraries for residents without air conditioning. A state monitor near Marquette in the Upper Peninsula registered an index of 955 Wednesday evening.

In Chicago, air quality crossed into the hazardous "maroon" category with a reading above 300, the worst the city has recorded since regulatory monitoring began nearly 30 years ago. All beaches and outdoor pools are closed, Park District programs have moved indoors, and the Garfield Park and Lincoln Park conservatories are shut for the day.

As of Thursday afternoon, Detroit had the worst air quality of any major city in the world, with an index near 570 — deep into the hazardous range — followed by Minneapolis, Chicago, and Toronto.

Users in the New York and Chicago areas are showing hazy conditions as smoke moves over the midwest and northeast U.S.

The Chiefs of Ontario are calling on federal and provincial governments to immediately provide coordinated emergency support as escalating wildfires threaten multiple First Nations communities.

Toronto's air quality was ranked among the worst in the world Wednesday as wildfire smoke triggered an orange air quality warning across the city. Environment Canada warns of "very poor air quality" and reduced visibility across Ontario through Friday.

Highways 599 and 527 remain fully closed.

Evacuation orders remain in effect for Armstrong, Collins First Nation, Gakijiwanong Anishinaabe Nation, Gull Bay First Nation, Lac des Mille Lacs First Nation, and Whitesand First Nation.

Nearly 200 wildfires are now burning across Ontario as of July 15 — significantly more than the 100+ reported earlier this week.

A user is live showing conditions in Ontario, reportedly a considerable distance away from the fires.

Residents are advised to limit time outdoors, keep windows and doors closed, and set HVAC systems to recirculate. Wear a KN95 or N95 mask if going outside. Those with asthma, heart disease, or other respiratory conditions are at highest risk.

Wildfire smoke is forecast to spread across the Midwest, Northeast, and Mid-Atlantic through Friday, potentially affecting air quality for around 100 million people, per the Washington Post.

Environment Canada has issued widespread air quality warnings across southern Ontario.

Evacuation orders are in place for Armstrong, Whitesand First Nation, and Collins First Nation, with residents seeking shelter in Thunder Bay, per CBC.

Several fires have merged into larger complexes and some have crossed the Ontario-Minnesota border.

More than 100 active wildfires are burning across Ontario as of July 15th, with numerous fires out of control due to extreme heat, dry conditions, and strong winds.

Incident reported at Ontario, Canada.