Across the Northern Hemisphere, familiar seasons are starting to feel unfamiliar. Heat waves linger, cold snaps arrive out of ...

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 ...

La Niña is developing but remains weak and west-based, muting its usual North American signal. This setup favors a volatile, stop-and-start season, with the jet stream shifting frequently and ...