Norrbotten has experienced a persistent heat wave with temperatures above 30 °C for two weeks, and SMHI forecasts 32 °C in Luleå on Wednesday. Meteorologist Linus Karlsson attributes the prolonged heat to stable high pressure, with warmth expected to continue through the week.

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 blue-green algae bloom detected at Lower Thetis Lake’s main beach prompted a Capital Regional District health advisory on July 20, 2025, warning humans and pets to avoid the water.

Temperatures in Rovaniemi exceeded 30 °C this week, drawing coverage from Reuters and CNN as the Finnish Meteorological Institute warned that Lapland’s all-time heat record could be broken.

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.

Flash floods kill an average of 127 people annually in the U.S., and nearly half of all deaths involve vehicles. People don’t realize that it doesn’t take much water to strand or even sweep away a car.

The Kachemak Bay National Estuarine Research Reserve detected Pseudo-nitzschia at bloom levels in Kachemak Bay starting July 4. This diatom can produce the toxin domoic acid, associated with amnesic shellfish poisoning, though toxin production is not yet confirmed. Observed bird deaths and marine mammal strandings have spurred collection of mussel samples for lab testing.

The Finnish Meteorological Institute reports that July 2025 was exceptionally warm across Finland, with Lapland’s Ylitornio experiencing a record 26-day heatwave.

July 2025 tied with 1933 as Iceland’s warmest July on record, with northeast and east regions averaging up to 14.2 °C and widespread 20 °C days across the country.

Nine-year-old Nora found over 50 ticks attached to her legs while playing barefoot in her grandmother’s garden in the Kålltorp district of Gothenburg.

A hiker walking with their dog in Jarfjord, Sør-Varanger, was bitten in the arm by a bear and is now receiving medical treatment; authorities warn against approaching bears.

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.

Khaled Elgamal recounts surviving a rockfall at Bow Glacier Falls in Banff National Park that killed his friend Hamza Benhilal and another hiker, while more than a dozen others were injured or evacuated.

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

The National Weather Service has issued its first-ever heat advisory for Alaska, covering Fairbanks as temperatures are expected to climb into the mid-80s this weekend.

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.

The fires have forced thousands of Canadians to flee their homes and sent smoke as far as Europe.

Smoke drifting into Yellowknife on May 29, 2025, mainly originated from wildfires in Alberta, with additional smoke forecast from northern British Columbia, according to FireSmoke Canada projections.

Authorities in Buryatia have declared a state of emergency as rapidly spreading wildfires, blamed on human activity, devastate the Zabaikalsky region and the Republic of Buryatia, producing heavy smoke and burning homes.

Anchorage is experiencing the highest tree pollen counts in nearly a decade, with counts reaching thousands of grains per cubic meter from birch, poplar, cottonwood, aspen, willow, and alder, triggering widespread allergy symptoms.