Which US states will see smoke from Canadian wildfires? EPA issues air quality warnings
Which US states will see smoke from Canadian wildfires? EPA issues air quality warnings
Show Caption
Hide Caption
Smoke drifting into US from Canada wildfires could impact health
Smoke from Canadian wildfires has been detected drifting in through Montana, North Dakota and northern Minnesota.
Fallout from the over 100 wildfires currently blazing across Canada is again being felt by U.S. states.
There were 181 active fires in Canada as of Monday, with 90 being classified as "out of control" and 62 as "under control," according to the Canadian Interagency Forest Fire Centre (CIFFC). Most of those fires, 69, were in British Columbia, followed by 49 in Alberta, 14 to 15 in Saskatchewan, Manitoba and Ontario, and a handful more spread across other territories.
The situation was categorized as a five, the highest rank on the National Preparedness Level, early Monday afternoon, meaning, "Wildland fire activity is significant within one or more jurisdictions," and "Firefighters and equipment in every jurisdiction in Canada is put to use and international help has been requested."
In the U.S., smoke from the fires has already been detected drifting through Montana, North Dakota and northern Minnesota. More states, ranging as far south as Florida and as far east and north as New York, may soon experience hazy or compromised air as well.
Here is what to know as of Monday, June 2.
Which states may see smoke from the Canadian wildfires?
Parts of Montana, North Dakota, South Dakota, Minnesota, Iowa and Illinois had swaths of air quality warnings ranging from "moderate" and "unhealthy for sensitive groups" to "unhealthy" for all as of Monday afternoon, according to the U.S. Environmental Protection Agency's (EPA) AirNow tracker. Nebraska, Montana and Kansas also have small areas of "moderate" air quality warnings near borders with other impacted states.
The red zone classified as the most "unhealthy" covers an area near Fargo, Minnesota that stretches northward from Ashby past Dugdale and into the Glacial Ridge National Wildlife Refuge and eastward from Barnesville to Davies.
Air quality concerns throughout the week
Smoke and compromised air quality may drift eastward later Monday and into Tuesday, according to the EPA's forecast tracker, with "unhealthy for sensitive groups" warnings expected to extend into Wisconsin and "unhealthy" quality focusing on the coast from Manitowoc and south past Kenosha into Zion. This stretch of smoky air will impact cities including Burlington, Sheboygan, and Milwaukee.
Air quality warnings of "moderate" and "unhealthy for sensitive groups" status will extend from Minnesota all the way down into Texas and Florida and east towards Virginia, Pennsylvania and the Carolinas on Monday. Tuesday, they could reach as far as New York and even a small fraction of Connecticut. Michigan, Wisconsin and Minnesota will take the brunt of more serious air quality warnings that day, according to the forecast.
Forecasts from FireSmoke Canada predicted the smoke fallout with extend even further, all the way up into Maine, hitting major population centers on the East Coast along the way.
See smoke and wildfire map
What is AQI?
The air quality index, or AQI, measures the air quality and level of health concern it presents as measured by the Environmental Protection Agency. The AQI is measured on a scale of 0 to 500, with higher numbers indicating more hazardous air pollution and increased health concerns.
Contributing: Olivia Munson and Karina Zaiets, USA TODAY
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


Boston Globe
9 minutes ago
- Boston Globe
Heat peaks in Boston Thursday, paired with humidity and hazy skies
A weak front will enter New England from the west, sparking a handful of thunderstorms across Northern New England and Western Mass. Thursday afternoon and evening. A pocket of dry air by the coast should help break down the storms and keep Boston dry outside of a lingering sprinkle. Clouds enter the region shortly after sunset — a red sunset most likely — with lows slipping to the mid- and upper 60s. Advertisement The setup — heat, humidity, and hazy skies The massive dome of high pressure will break down and shift east on Thursday, but not before transforming the region into a typical hot and muggy summer day. There will be a decent southwesterly flow that will push moist air into the region ahead of a weak front approaching, setting up the chance for afternoon and evening thunderstorms across Western and Central New England. Much of the day will be mostly sunny but haze will stick around to block out the sun a touch. The line of scattered storms will likely dry out by the time they reach Boston and the rest of the coast — all of I-95 shouldn't see anything more than a spot sprinkle. But wherever they do form farther west, there could be a decent brief downpour, gusty winds, and small hail. Rain totals should not exceed more than a half inch. Advertisement A mostly sunny start will eventually change to scattered showers and thunderstorms pushing in New England during Thursday afternoon. Boston Globe An isolated severe thunderstorm is possible across Northern New England and Berkshire County. Boston might see a lingering shower or storm late. Boston Globe Temperatures are set to surge as the southerly flow will squeeze with the approaching frontal boundary, prompting a moderate flow to make the 90s a real shot for Boston. Most of Southern New England will see the upper 80s with a smattering of low 90s. The record daily high for Boston on Thursday is 96 degrees, set in 1919. But a few tied or new records could be set west of I-495. Temperatures will soar into the 90s for parts of New England, for the hottest day of the year-to-date. Boston Globe One thing you'll for sure notice is the muggy air. It'll feel like a peak summer day with dew points well into the 60s, making it feel a bit uncomfortable. Dew points in the 60s with hot temperatures make the air very buoyant and easy to lift. That's what'll happen with thunderstorms Thursday afternoon when the front, holding more dense air will lift warm, moist air vertically and spark thunderstorms. Dew points will jump into the 60s across Southern New England Thursday afternoon, making the air feel thick and sticky. Boston Globe Wildfire smoke will start to lift during the evening Thursday. Canadian wildfire smoke will continue to linger near the surface throughout much of Thursday. Boston Globe Weekend preview I wish I wasn't writing this, but it does appear that we're in for some rain for the 13th weekend in a row in Greater Boston with Saturday circled on the calendar. Saturday morning looks to be the highest chance for rain with the afternoon and evening in better shape to stay dry. Sunday should have a good shot of staying completely dry. Advertisement A look at weather across Boston for the next seven days. Boston Globe Thursday's breakdown Greater Boston: Mostly sunny with hazy skies. Highs build close to 90 degrees. Dew points into the low 60s making it feel muggy. A chance for a spot shower late with increasing clouds at night as lows slip to the mid-60s. Southeastern Mass.: Mostly sunny with a slight breeze. Hazy skies remain, with highs in the low 80s along the coast, jumping to the upper 80s inland. A low chance for a sprinkle late under partly cloudy skies as lows drop to the mid-60s. Central/Western Mass.: Mostly sunny with hazy skies. Heat builds highs into the 90s from Worcester to Springfield. Berkshires to the mid-80s. A scattered shower or thunderstorm is possible Thursday evening from Berkshire County to Worcester. Lows to the low 60s under partly cloudy skies. Cape and Islands: Seeing mostly sunny skies blend with haze as highs reach the upper 70s and low 80s. An onshore breeze to about 10 mph. Increasing clouds late in the evening with lows to the mid-60s. Rhode Island: Hot and hazy under mostly cloudy skies. Highs to the upper 80s. Westerly to Newport stalls in the low 80s. Increasing clouds late in the evening with a near-zero chance for a sprinkle. Lows to the mid-60s. New Hampshire: Summer heat with highs in the upper 80s and low 90s. Mostly sunny skies with haze still sticking around. The a chance of a shower or thunderstorm Thursday afternoon and early evening. Lows to the upper 50s and low 60s. Vermont/Maine: Mostly sunny across both states most of the day with hazy skies. Highs to the upper 80s and low 90s. Clouds build across Vermont in the afternoon, later for Maine, as a front sparks a line of scattered showers and thunderstorms. A low chance for a severe storm in Vermont with small hail and strong wind gusts. Lows slip to the upper 50s and low 60s. Advertisement for our , which will arrive straight into your inbox bright and early each weekday morning. Ken Mahan can be reached at
Yahoo
an hour ago
- Yahoo
Data capturing hot spots and burned acres show Canada wildfire season off to wild start
While images of wildfires capture their ferocity, data can provide insight into how bad a fire season is. Such is the case with two graphics, powered by satellite data, that showcase a Canadian wildfire season off to a wild — and scary — start. Twice a day a NASA satellite sends images to the ground, giving a real-time view of where fires are burning. This is especially useful for remote areas where no sensors are stationed. As of Tuesday that satellite had picked up four times as many fire hot spots across Canada than is typical for early June. That's more than any year since the satellite began transmitting in 2012, except 2023, according to data from Global Forest Watch. Though the satellite has recorded thousands of hot spots so far this year, that does not mean there are actually that many active fires. Each hot spot could be detected repeatedly over the course of days. And because each detection is about the size of 26 football fields, it can represent part of a much larger blaze, said James MacCarthy, wildfire research manager at Global Forest Watch. Based on data from the Canadian Interagency Forest Fire Centre, about 200 fires are actively burning in Canada and have consumed about 7,700 square miles (19,900 square kilometers) of terrain, most of it in the last week. Only 2023 saw such high numbers so early in Canada's fire season, which runs from April through October. That year wildfires burned a record 67,000 square miles — more than twice the surface area of Lake Superior, the largest of the Great Lakes. Taken together, the hot spots and acres burned mean 2025 is the second-worst start to the season in years. 'A warm and dry finish to May and early June has created a significant fire season,' said Liam Buchart, a fire weather specialist with the Canadian Forest Service. The weather conditions are made more likely by climate change and encourage wildfires to start. That means even though 90% of wildfires in Manitoba this year have been human-caused, according to the provincial government, climate change helps enable their spread. 'Climate change is creating the conditions that make it more likely that human-caused fires are going to spread, or even start,' MacCarthy said. 'It might be a human starting it, but it's going to spread quickly because now there's hot and dry conditions that are occurring more frequently and more intensely than they have in the past.' The hot and dry weather is likely to to continue for at least the next week across Manitoba, Saskatchewan and Alberta, according to Natural Resources Canada. The agency's forecasts also call for 'a warmer and drier than normal July and August for large portions of Canada,' Buchart said. 'The remainder of the fire season looks to remain above normal, especially over the northern prairie provinces and southern British Columbia,' he said. ___ The Associated Press' climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP's standards for working with philanthropies, a list of supporters and funded coverage areas at

Associated Press
an hour ago
- Associated Press
Data capturing hot spots and burned acres show Canada wildfire season off to wild start
While images of wildfires capture their ferocity, data can provide insight into how bad a fire season is. Such is the case with two graphics, powered by satellite data, that showcase a Canadian wildfire season off to a wild — and scary — start. Twice a day a NASA satellite sends images to the ground, giving a real-time view of where fires are burning. This is especially useful for remote areas where no sensors are stationed. As of Tuesday that satellite had picked up four times as many fire hot spots across Canada than is typical for early June. That's more than any year since the satellite began transmitting in 2012, except 2023, according to data from Global Forest Watch. Though the satellite has recorded thousands of hot spots so far this year, that does not mean there are actually that many active fires. Each hot spot could be detected repeatedly over the course of days. And because each detection is about the size of 26 football fields, it can represent part of a much larger blaze, said James MacCarthy, wildfire research manager at Global Forest Watch. Based on data from the Canadian Interagency Forest Fire Centre, about 200 fires are actively burning in Canada and have consumed about 7,700 square miles (19,900 square kilometers) of terrain, most of it in the last week. Only 2023 saw such high numbers so early in Canada's fire season, which runs from April through October. That year wildfires burned a record 67,000 square miles — more than twice the surface area of Lake Superior, the largest of the Great Lakes. Taken together, the hot spots and acres burned mean 2025 is the second-worst start to the season in years. 'A warm and dry finish to May and early June has created a significant fire season,' said Liam Buchart, a fire weather specialist with the Canadian Forest Service. The weather conditions are made more likely by climate change and encourage wildfires to start. That means even though 90% of wildfires in Manitoba this year have been human-caused, according to the provincial government, climate change helps enable their spread. 'Climate change is creating the conditions that make it more likely that human-caused fires are going to spread, or even start,' MacCarthy said. 'It might be a human starting it, but it's going to spread quickly because now there's hot and dry conditions that are occurring more frequently and more intensely than they have in the past.' The hot and dry weather is likely to to continue for at least the next week across Manitoba, Saskatchewan and Alberta, according to Natural Resources Canada. The agency's forecasts also call for 'a warmer and drier than normal July and August for large portions of Canada,' Buchart said. 'The remainder of the fire season looks to remain above normal, especially over the northern prairie provinces and southern British Columbia,' he said. ___ The Associated Press' climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP's standards for working with philanthropies, a list of supporters and funded coverage areas at