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, ...

A long stretch of humid heat followed by intense thunderstorms is a weather pattern historically seen mostly in and around ...

Australia is getting hotter. Climate change is driving more frequent and prolonged extreme heat waves and our homes are ...

During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...

The circumglobal teleconnection pattern (CGT) is a key mode of atmospheric variability during boreal summer, identified by an ...

Extreme heat is a killer and its impact is becoming far, far deadlier as the human-caused climate crisis supercharges temperatures, according to a new study, which estimates global warming tripled the ...

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 ...

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: ...

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 ...

Weather reports indicate a heat dome with highs in the 90s to low 100s is building over parts of the country this week — including the Northeast with a short, but significant, hot and humid spell ...