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, ...

What Exactly Is The Jet Stream The jet stream, or any wind, is the result of differences in surface temperature. In simple ...

Heat and smoke from wildfires are spreading across the country this week, impacting air quality and prompting heat alerts from Canada to the Gulf of Mexico. A ridge of high pressure has expanded over ...

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 ...

When a hurricane or a wildfire strikes, the economic damage is usually very visible — roofs are ripped off or charred homes line roads. Heat waves cause financial damage, too, but it’s more diffuse: ...

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 ...

Extreme heat is becoming more common, and experts say it can affect your health in short- and long-term ways. A new study suggests that two years of exposure to heat waves could prematurely age a ...

Florida faces a potentially heightened risk of intense hurricanes in the coming season due to a marine heat wave. A "marine heat wave" is defined as a prolonged period of abnormally high temperatures ...