Smoke from Canadian wildfires is expected to drift over Finland by Saturday evening, brightening sunsets but not affecting air quality, according to the Finnish Meteorological Institute.

The Wesley Ridge wildfire near Qualicum Beach on Vancouver Island has expanded to nearly 590 hectares, and smoke is expected to linger across the region through the summer.

Russia’s Krasheninnikov volcano on Kamchatka erupted on August 3, 2025 for the first time in six centuries, following major seismic activity, sending ash up to six kilometers into the sky.

On August 2, 2025 multiple wildfires broke out in Lapland’s Ranua and Posio areas, with additional fires reported in Tervola, Sodankylä, Rovaniemi and Kolar. The largest wildfire, spanning 500 × 500 m, burned near Alavaarantie in Ranua by late afternoon.

Dense wildfire smoke has prompted air quality advisories across several Northwest Territories communities, leading to health warnings and the opening of clean-air shelters in Yellowknife and Fort Providence.

Multiple wildfires across Finnish Lapland this week prompted dozens of rescue responses, with Border Guard and Defence Forces helicopters assisting amid dry conditions and an open fire ban.

The total area of active forest fires in the Sakha Republic (Yakutia) grew from 265 ha to 1,462.5 ha on July 22, with 10 fires being fought by 306 personnel and 14 units of equipment.

Authorities in Russia’s Tyva Republic declared a state of emergency after eight wildfires grew to over 324 hectares, banning public entry to forests.

Warm, dry weekend conditions in Manitoba increased wildfire behaviour across nearly all active blazes, prompting evacuations, air quality warnings and challenges for aerial suppression.

Many residents sought medical attention for respiratory discomfort and eye irritation caused by volcanic smog and air pollution lingering over Reykjavík and nearby areas.

A wildfire near Lake Spokane in southern Stevens County grew to over 2,000 acres by Sunday, prompting evacuations as thick smoke blanketed the region.

Volunteer firefighting flights in Norrbotten faced their most hectic period ever when a Sunday thunderstorm sparked multiple lightning-ignited wildfires, creating a “wall of lightning” that hindered access across Gällivare, Kiruna, Pajala and Porjus.

Lightning strikes from passing thunderclouds have ignited forest fires in several inland municipalities in Norrbotten County, Sweden, prompting rescue services to work to extinguish them.

New fissures on the Reykjanes Peninsula have sent lava eastward and prompted fresh hazard warnings, with high sulfur dioxide levels and drifting volcanic fibers adding to safety concerns.

The increase in tree "fluff" is likely a stress response from poplars, aspen and willows reacting to the dry conditions from the past few years, according to the N.W.T.'s department of Environment and Climate Change.

A forest fire near Musquodoboit Harbour on Nova Scotia’s Eastern Shore has stabilized after rainfall, allowing some evacuees to return home while others remain displaced as crews continue to monitor the 30-hectare blaze.

Smoke from Canadian wildfires is drifting into Southeast Alaska’s Chilkat Valley, prompting an air quality advisory for Haines and Skagway as hazy conditions persist.

Other new fires were reported near the Eureka Roadhouse along the Glenn Highway and near the Denali Park community. Forty new fires were reported Thursday.

Levels of fine particulate matter have risen in Reykjavík, likely due to smoke from Canadian wildfires, prompting health advisories for those with respiratory issues.

Smoke from wildfires burning in the Canadian Prairies is degrading air quality in northeastern British Columbia, prompting Environment Canada to issue special air quality statements and advise residents to limit outdoor exposure.