Heat waves can form when a high-pressure system moves into a region and stalls. The system can force warm air downward, acting like a cap as it keeps the cool air near the surface from rising, ...

The jet stream, or any wind, is the result of differences in surface temperature. In simple terms, warm air rises, creating low pressure, and cold air sinks, creating high pressure. Wind is the ...

Australia has always had heat waves. But this week's heat wave in southeastern Australia is something else. Temperatures in some inland towns in South Australia, New South Wales and Victoria were up ...

Australia has always had heatwaves. But this week’s heatwave in southeastern Australia is something else. Temperatures in some inland towns in South Australia, New South Wales and Victoria were up to ...

Millions of people in southeastern Australia are sweating through a record-breaking heat wave. The heat this week is likely ...

The 2021 heat dome in the Pacific Northwest that overwhelmed emergency rooms and left hundreds dead. The 2022 heat wave in India that devastated the wheat harvest. The deadly heat waves in France in ...

Waves from the Pacific Ocean break along the coast near the 60-ft high Victoria Beach Pirate Tower on a summer day on Sept. 19, 2025 in Laguna Beach, Calif. Waves from the Pacific Ocean break along ...