Maps: See how Canadian wildfire smoke is impacting Mass., New England
Be sure to monitor the air quality near you and limit time outdoors if you have respiratory challenges, like asthma.
Here's what the maps and images show:
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Satellite imagery tracks the dull gray smoke spreading over New England and mixing with some clouds, which look like brighter white cotton balls.
Wildfire smoke (dull gray) blankets New England on Wednesday.
NOAA
Smoke and ozone particulates from sinking air have prompted air quality alerts for parts of New England throughout Wednesday and most of Thursday. Most of Connecticut is under air quality alerts, as is part of Central Mass., a portion of Southern New Hampshire, and much of the Maine coast.
Air quality alerts are in place for Wednesday and Thursday with wildfire smoke and ozone particulate matter close to the surface.
Boston Globe
This graphic shows near-surface smoke in the region over the next two days.
Near-surface smoke will spread through New England Wednesday and most of Thursday.
Boston Globe
Air quality across New England remains mostly in good shape, but a few spots saw moderate levels of poor air quality Wednesday morning.
Most of the air quality across New England remains in good status, with a few moderate levels across Northern New England.
AirNow
In parts of Maine, wildfire smoke obscured the sun Wednesday morning.
Western Canadian (Manitoba) Wildfire Smoke overhead today. Its impacting incoming solar radiation to the surface. 9:30am yesterday 668 W/m2, today at 9:30am only 514 W/m2. 9:30am yesterday brightness of 80171 lux vs 9:30am today of 61631 lux.
— James Sinko (@JamesSinko)
These photos captured Tuesday night's sunset as wildfire smoke began to push into Portsmouth, N.H.
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Tonight was the first red orb sunset of the season (wildfire smoke).
--
June 3, 2025
Portsmouth, New Hampshire
— Rob Wright Images (@RobWrightImages)
The orange sun set on the horizon Tuesday night from the top of Mount Washington.
Smoke from distant wildfires in Canada shrouded parts of New England today, creating a hazy look to the sky. Smoke will continue to blanket our area tomorrow, keeping skies hazy and lowering air quality in some areas.
— Mount Washington Observatory (MWOBS) (@MWObs)
More than 200 wildfires extend across the central and western portions of Canada.
Over 200 wildfires burn across Central and Western Canada, sending smoke downstream into the Northeast.
FIRMS
Ken Mahan can be reached at
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