From Toronto to Minneapolis, Chicago to Omaha many places in North America are seeing a surge in summer heat well into fall. But one of the drivers is a weather phenomenon occurring thousands of miles ...

Killer whales, including calves and juveniles, travel in their family group in the Gulf of Alaska in June 2025. It’s well documented by now that the marine heatwave that hit the Pacific Ocean in 2014 ...

From seabirds to sea lions, wildlife along the California coast are now facing “the Blob,” a massive marine heat wave that’s become a recurring anomaly since the early 2010s. The oceanic phenomenon ...

The most significant heat wave of the summer is moving into Southern California this week, forecasters say, along with heightened wildfire dangers in some areas. The National Weather Service predicts ...

A dangerous heat wave is building across Wisconsin and the Great Lakes this week, with temperatures climbing into the upper 80s and 90s — 20–25 degrees above normal. Much of the state normally expects ...

The prolonged, dangerous heat wave is expected to begin broiling much of Southern California on Wednesday, peaking Thursday, Friday and Saturday. A red flag warning has been issued for Los Angeles and ...

The season’s most dangerous heat wave so far is expected to hit Southern California this week. Extreme heat and fire weather advisories have been issued beginning Wednesday, set to last for several ...

LOS ANGELES (CNS) -- With a heat wave expected to begin Wednesday, the Los Angeles County Department of Public Health Tuesday warned people to avoid ocean waters at several beaches due to high ...