When the bubonic plague reached England in the summer of 1348 — spread by fleas, lice, or infected humans, according to the latest theories — it reached a breeding ground for disease. Londoners’ ...

The upper-atmospheric feature plays a critical role in Earth's climate. This has been a summer of unusual weather across the northern hemisphere with many areas experiencing a rollercoaster of heat ...

Heavy precipitation, wind storms, heat waves—when severe weather events such as these occur they are frequently attributed to a wavy jet stream. The jet stream is a powerful air current in the upper ...

Something has been off about the sky lately, and meteorologists are finally putting numbers to the feeling. Across the past several months, forecast models have picked up on a significant ...

Tree-ring data reveal that periodic shifts in strong winds high above the Earth's surface have driven opposite climates in different parts of Europe for the past 700 years and likely much longer, ...

Summer 2024 was officially the Northern Hemisphere's hottest on record. In the United States, fierce heat waves seemed to hit somewhere almost every day. Overall, the global average temperature was ...

Meteorologist Justin Rudicel explains how the jet stream forms, why it shifts throughout the year and how it influences everything from severe storms to summer heat in Oklahoma. The jet stream is one ...

The summer of 2025 brought unprecedented flash flooding across the U.S., with the central and eastern regions hit particularly hard. These storms claimed hundreds of lives across Texas, Kentucky and ...